Published - Tue, 06 Dec 2022

Control System Interview Questions and Answers

A list of top frequently asked Control System interview questions and answers are given below.

1) What is meant by System?

When the number of elements connected performs a specific function then the group of elements is said to constitute a system or interconnection of various components for a specific task is called system. Example: Automobile.

2) What is meant by Control System?

Any set of mechanical or electronic devices that manages, regulates or commands the behavior of the system using control loop is called the Control System. It can range from a small controlling device to a large industrial controlling device which is used for controlling processes or machines.

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3) What are the types of control system?

There are two types of Control System-

Open loop control system.
Closed loop control system.

4) What is open loop and control loop systems?

Open loop control System: An open-loop control system is a system in which the control action is independent of the desired output signal. Examples: Automatic washing machine, Immersion rod.

Closed loop control System: A closed-loop control system is a system in which control action is dependent on the desired output. Examples: Automatic electric iron, Servo voltage stabilizer, an air conditioner.

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5) What is time-invariant System?

The time required to change from one state to another state is known as transient time, the value of current and voltage during this period is called transient response and the system in which the input and output characteristics of the system does not change with time is called the Time-Invariant System.

6) What are linear and non-linear systems?

Linear system: Linear systems are the systems which possess the property of homogeneity and superposition. The term superposition means that an input r₁(t) gives an output c₁(t) and r₂(t) will give the output c₂(t). If we apply both the input r₁(t) and r₂(t) together, then the output will be the sum of c₁(t) and c₂(t).

r₁ (t) + r₂ (t) = c₁ (t) + c₂ (t)

Non-Linear System: Non-linear systems are the systems which do not possess the property of superposition and homogeneity, and the output of these systems are not directly proportional to its input. In these types of systems, the stability of the system depends upon the input and initial state of the system.

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7) What is meant by analogous System?

When the two differential equations are of same order or form such type of systems is called analogous systems.

8) What is the Transfer Function?

Transfer function of a system is defined as the ratio of Laplace transform of output to the Laplace transform of input with all the initial conditions as zero.

Control System Interview Questions

Where,

T(S) = Transfer function of system.
C(S) = output.
R(S) = Reference output.
G(S) = Gain.

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9) What are the advantages and disadvantages of open loop control System?

Advantages of the open-loop control system

Open loop systems are simple.
These are economical.
Less maintenance is required and is not difficult.

Disadvantages of the open-loop control system

Open loop systems are inaccurate.
These systems are not reliable.
These are slow.
Optimization is not possible.

10) What are the advantages and disadvantages of closed-loop control System?

Advantages of closed-loop systems

The closed loop systems are more reliable.
Closed loop systems are faster.
Many variables can be handled simultaneously.
Optimization is possible.

Disadvantages of closed-loop systems

Closed loop systems are expensive.
Maintenance is difficult.
Installation is difficult for these systems.

11) What are the necessary components of the feedback control system?

The processing system (open loop system), feedback path element, an error detector, and controller are the necessary components of the feedback control system.

12) What is the feedback in the control system?

When the input is fed to the system and the output received is sampled, and the proportional signal is then fed back to the input for automatic correction of the error for further processing to get the desired output is called as feedback in control system.

13) What is Gain Margin?

Gain margin is the gain which varies before the system becomes stable because if we continuously increase the gain up to a certain threshold, the system will become marginally stable, and if the gain varies further then it leads to instability. Mathematically, it is the reciprocal of the magnitude of the G(jω)H(jω) at phase cross-over frequency.

14) What is Signal Flow Graph?

The graphical representation of the system's relationship between the variables of a set of linear equations is called SFG (Signal Flow Graph). Signal flow graphs do not require any reduction technique or process.

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15) What is Mason's Gain Formula?

The input and output variable relationship of a signal flow graph is given by Mason's Gain Formula.

For the determination of the overall system, the gain of the system is given by:

Control System Interview Questions

Where,

P_k = forward path gain of the K^th forward path.

∆ = 1 - [Sum of the loop gain of all individual loops] + [Sum of gain products of all possible of two non-touching loops] + [Sum of gain products of all possible three non-touching loops] + .......

∆_k = The value of ∆ for the path of the graph is the part of the graph that is not touching the K^th forward path.

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16) What are the essential characteristics of Signal Flow Graphs?

The essential characteristics of the signal flow graph are:

It represents a network in which nodes are used for the representation of system variable which is connected by direct branches.
SFG is a diagram which represents a set of equations. It consists of nodes and branches such that each branch of SFG having an arrow which represents the flow of the signal.
It is only applicable to the linear system.

17) What is the basic rule for block diagram reduction technique?

The basic rule for block diagram reduction is that if we make any changes in the diagram, then that changes do not create any changes in the input-output relationship of the system.

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18) What is an order of a system?

Order of the system is the highest derivative of the order of its equation. Similarly, it is the highest power of 's' in the denominator of the transfer function.

19) What is the resonant peak?

The maximum value of the closed-loop transfer function is called the Resonant Peak. A large value of resonant peak means that it has large overshoot value in the transient response.

20) What is the cut-off rate?

The slope of the log-magnitude curve near the cut-off frequency is called the cut-off rate. It indicates the ability of the system to differentiate between the signal and the noise.

21) What is phase cross-over frequency?

When the phase of the open loop transfer function reaches 180? at a particular frequency then it is called as Phase crossover frequency.

22) What is Phase Margin?

When we have to bring the system to the edge of instability, the additional phase lag required at the gain crossover frequency is called the Phase Margin.

23) What Is Pole Of The System?

The value at which the function F(s) becomes infinite is called the Pole of the function F(s), where F(s) is a function of complex variables.

24) What Is Zero Of The System?

The value at which the function F(s) becomes zero is called the Zero of the function F(s), where F(s) is a function of complex variables.

25) What Is The Use For Cable Entry In Control Room?

When there is an emergency, i.e., fire/explosion takes place in the plant, and we have to restrict it from entering to the control room then MCT (Multiple Cable Transient) blocks are used, and the process control rooms are built for the non-hazardous area.

26) What is the effect of positive feedback on the Stability of the systems?

Positive feedback increases the error signal and drives the system to the instability that is why it is not generally used in the control system. Positive feedbacks are used in minor loop control systems to amplify internal signals and parameters.

27) What is Servomechanism?

When a specific type of motor known as servomotor is combined with a rotary encoder or a potentiometer, to form a Servomechanism. In this setup, a potentiometer provides an analog signal to indicate the position and an encoder provide position and speed feedback.

28) Where is Servomechanism used?

Servomechanism is used in the control system so that the mechanical position of a device can be varied with the help of output.

The Servomechanism is widely used in a Governor value position control mechanism that is used in power plants to take the speed of turbine and process it using the transducer, and the final value is taken as a mechanical movement of the value. However, nowadays Governor value position control is done with Electronic controls that use power Thyristors. This mechanism is also used in robotic hand movement.

29) How many types of instrument cables are there?

The following types of instrument cables are there:

IS cables
NIS cables.
IS - Intrinsic safety and NIS - Non Intrinsic safety.
Depending upon the condition of hazards the type of cable is decided.

30) What are the temperature elements?

The temperature elements are-

Thermocouple.
Resistance temperature detectors (RTDs).

31) What is Cable Tray, its Type, and its Support?

The media or way through which we lay the field cables in plants is called as cable tray. These are made of aluminum, steel or fiber reinforced plastic (FRP) and are available in six types-

Ladder type Cable Tray(made of Rungs type construction)
Solid Bottom Cable Tray
Trough Cable Tray
Channel Cable Tray
Wire Mesh Cable Tray
Single Rail Cable Tray

The main points which we have to consider before laying the cables are the site conditions and the adequate space where we have to lay the cable.

32) How to decide cable tray size?

Based on the occupancy in the cable tray and a number of cables required we have to choose the size of the cable tray. These are available in all sizes like 80,150, 300, 450, 600 and 900.

33) What is the cut-off Rate?

The slope near the cut-off frequency of the log-magnitude curve is called the cut-off rate. The cut-off rate indicates the ability of the system to distinguish between the signal and the noise.

34) Enlists the applications of Sampled Data Systems?

Sampled data system has the following applications-

Quantized data is used for controlling in High-speed tinplate rolling mills.
Digitally controlled or pulse controlled electric drives.
For machine tool operations which are numerically controlled.

It is used in large systems using telemetry links based on pulse modulation (PM) translational data.

35) What are DCS and PLC?

DCS and PLC are the control systems which handles fields I/Os. DCS is Distributed control system, and PLC is the Programmable logic controller.

36) What are stable systems?

Stable systems are the system in which all the roots of the characteristic equations lie on the right half of the 'S' plane.

37) What are marginally stable systems?

Marginally stable systems are the system in which all the roots of the characteristic equations lie on the imaginary axis of the 'S' plane

38) What are unstable systems?

Unstable systems are the system in which all the roots of the characteristic equations lie on the left half of the 'S' plane.

39) What is Routh Hurwitz Stability Criterion?

Routh Hurwitz criterion states that a system is stable if and only if all the roots of the first column have the same sign and if all the signs are not same then number of time the sign changes in the first column is equal to the number of roots of the characteristic equation in the right half of the s-plane.

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40) What is an Automatic Controller?

Automatic Controllers are the device which compares the actual value of plant output with the desired value. These systems produce the control system that reduces the deviation to ?0? or to a small value and determines the deviation.

41) What is the Control Action?

Control action is the manner in which the automatic controller produces the control signal.

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LabCorp Interview Questions & Answers:

1. What type of people do you not work well with?Be very careful answering this question as most organization employ professionals with an array of personalities and characteristics. You don't want to give the impression that you're going to have problems working with anyone currently employed at the organization. If you through out anything trivial you're going to look like a whiner. Only disloyalty to the organization or lawbreaking should be on your list of personal characteristics of people you can't work with.2. How did you hear about the position At LabCorp?Another seemingly innocuous interview question, this is actually a perfect opportunity to stand out and show your passion for and connection to the company and for job At LabCorp. For example, if you found out about the gig through a friend or professional contact, name drop that person, then share why you were so excited about it. If you discovered the company through an event or article, share that. Even if you found the listing through a random job board, share what, specifically, caught your eye about the role.3. Your client is upset with you for a mistake you made, how do you react?Acknowledge their pain - empathize with them. Then apologize and offer a solution to fix the mistake.4. How well do you know our company?Well, a developed company that is gradually building their reputation in the competitive world.5. Tell me why do you want this job At LabCorp?Bad Answer: No solid answer, answers that don't align with what the job actually offers, or uninspired answers that show your position is just another of the many jobs they're applying for.Good answer: The candidate has clear reasons for wanting the job that show enthusiasm for the work and the position, and knowledge about the company and job.6. Tell me about a problem that you've solved in a unique or unusual way. What was the outcome? Were you happy or satisfied with it?In this question the interviewer is basically looking for a real life example of how you used creativity to solve a problem.7. What can you offer me that another person can't?This is when you talk about your record of getting things done. Go into specifics from your resume and portfolio; show an employer your value and how you'd be an asset.You have to say, “I'm the best person for the job At LabCorp. I know there are other candidates who could fill this position, but my passion for excellence sets me apart from the pack. I am committed to always producing the best results. For example…”8. What education or training have you had that makes you fit for this profession At LabCorp?This would be the first question asked in any interview. Therefore, it is important that you give a proper reply to the question regarding your education. You should have all the documents and certificates pertaining to your education and/or training, although time may not allow the interviewer to review all of them.9. If you were given more initiatives than you could handle, what would you do?First prioritize the important activities that impact the business most. Then discuss the issue of having too many initiatives with the boss so that it can be offloaded. Work harder to get the initiatives done.10. What do you consider to be your greatest achievement so far and why?Be proud of your achievement, discuss the results, and explain why you feel most proud of this one. Was it the extra work? Was it the leadership you exhibited? Was it the impact it had?Download Interview PDF 11. What is your dream job?There is almost no good answer to this question, so don't be specific. If you tell the interviewer that the job you're applying for with his/her company is the perfect job you may loose credibility if you don't sound believable (which you probably won't if you're not telling the truth.) If you give the interviewer some other job the interviewer may get concerned that you'll get dissatisfied with the position if you're hired. Again, don't be specific. A good response could be, “A job where my work ethic and abilities are recognized and I can make a meaningful difference to the organization.”12. Are you currently looking at other job opportunities?Just answer this question honestly. Sometime an employer wants to know if there are other companies you're considering so that they can determine how serious you are about the industry, they're company and find out if you're in demand. Don't spend a lot of time on this question; just try to stay focused on the job you're interviewing for.13. Why do you want this job At LabCorp?This question typically follows on from the previous one. Here is where your research will come in handy. You may want to say that you want to work for a company that is Global Guideline, (market leader, innovator, provides a vital service, whatever it may be). Put some thought into this beforehand, be specific, and link the company's values and mission statement to your own goals and career plans.14. What did you dislike about your old job?Try to avoid any pin point , like never say “I did not like my manager or I did not like environment or I did not like team” Never use negative terminology. Try to keep focus on every thing was good At LabCorp , I just wanted to make change for proper growth.15. If you were hiring a person for this job At LabCorp, what would you look for?Discuss qualities you possess required to successfully complete the job duties.16. If the company you worked for was doing something unethical or illegal, what would you do?Report it to the leaders within the company. True leaders understand business ethics are important to the company's longevity17. Tell me a difficult situation you have overcome in the workplace?Conflict resolution, problem solving, communication and coping under pressure are transferable skills desired by many employers At LabCorp.Answering this question right can help you demonstrate all of these traits.☛ Use real-life examples from your previous roles that you are comfortable explaining☛ Choose an example that demonstrates the role you played in resolving the situation clearly☛ Remain professional at all times – you need to demonstrate that you can keep a cool head and know how to communicate with people18. Tell us something about yourself?Bad Answer: Candidates who ramble on about themselves without regard for information that will actually help the interviewer make a decision, or candidates who actually provide information showing they are unfit for the job.Good answer: An answer that gives the interviewer a glimpse of the candidate's personality, without veering away from providing information that relates to the job. Answers should be positive, and not generic.19. How do you handle confidentiality in your work?Often, interviewers will ask questions to find out the level of technical knowledge At LabCorp that a candidate has concerning the duties of a care assistant. In a question such as this, there is an opportunity to demonstrate professional knowledge and awareness. The confidentiality of a person's medical records is an important factor for a care assistant to bear in mind.20. What are you looking for in a new position At LabCorp?I've been honing my skills At LabCorp for a few years now and, first and foremost, I'm looking for a position where I can continue to exercise those skills. Ideally the same things that this position has to offer. Be specific.21. What motivates you at the work place?Keep your answer simple, direct and positive. Some good answers may be the ability to achieve, recognition or challenging assignments.22. Can you describe your ideal boss/supervisor?During the interview At LabCorp process employers will want to find out how you respond to supervision. They want to know whether you have any problems with authority, If you can work well as part of a group (see previous question) and if you take instructions well etc.Never ever ever, criticize a past supervisor or boss. This is a red flag for airlines and your prospective employer will likely assume you are a difficult employee, unable to work in a team or take intruction and side with your former employer.23. Why are you leaving last job?Although this would seem like a simple question, it can easily become tricky. You shouldn't mention salary being a factor at this point At LabCorp. If you're currently employed, your response can focus on developing and expanding your career and even yourself. If you're current employer is downsizing, remain positive and brief. If your employer fired you, prepare a solid reason. Under no circumstance should you discuss any drama or negativity, always remain positive.24. What motivates you?I've always been motivated by the challenge – in my last role, I was responsible for training our new recruits and having a 100% success rate in passing scores. I know that this job is very fast-paced and I'm more than up for the challenge. In fact, I thrive on it.25. Tell me about a time when you had to use your presentation skills to influence someone's opinion At LabCorp?Example stories could be a class project, an internal meeting presentation, or a customer facing presentation.Download Interview PDF 26. How do you handle conflicts with people you supervise?At first place, you try to avoid conflicts if you can. But once it happens and there's no way to avoid it, you try to understand the point of view of the other person and find the solution good for everyone. But you always keep the authority of your position.27. Why should I hire you At LabCorp?To close the deal on a job offer, you MUST be prepared with a concise summary of the top reasons to choose you. Even if your interviewer doesn't ask one of these question in so many words, you should have an answer prepared and be looking for ways to communicate your top reasons throughout the interview process.28. How have you shown yourself to be a leader?Think about a time where you've rallied a group of people around a cause / idea / initiative and successfully implemented it. It could be a small or large project but the key is you want to demonstrate how you were able to lead others to work for a common cause.29. How do you deal with conflict in the workplace At LabCorp?When people work together, conflict is often unavoidable because of differences in work goals and personal styles. Follow these guidelines for handling conflict in the workplace.☛ 1. Talk with the other person.☛ 2. Focus on behavior and events, not on personalities.☛ 3. Listen carefully.☛ 4. Identify points of agreement and disagreement.☛ 5. Prioritize the areas of conflict.☛ 6. Develop a plan to work on each conflict.☛ 7. Follow through on your plan.☛ 8. Build on your success.30. What have you done to reduce costs, increase revenue, or save time?Even if your only experience is an internship, you have likely created or streamlined a process that has contributed to the earning potential or efficiency of the practice. Choose at least one suitable example and explain how you got the idea, how you implemented the plan, and the benefits to the practice.31. How do you feel about giving back to the community?Describe your charitable activities to showcase that community work is important to you. If you haven't done one yet, go to www.globalguideline.com - charitable work is a great way to learn about other people and it's an important part of society - GET INVOLVED!32. What can you tell me about team work as part of the job At LabCorp?There is usually a team of staff nurses working in cooperation with each other. A team of nurses has to get along well and coordinate their actions, usually by dividing their responsibilities into sectors or specific activities. They help each other perform tasks requiring more than one person.33. What is your perception of taking on risk?You answer depends on the type of company you're interviewing for. If it's a start up, you need to be much more open to taking on risk. If it's a more established company, calculated risks to increase / improve the business or minimal risks would typically be more in line.34. How would your former employer describe you?In all likelihood, the interviewer will actually speak with your former employer so honesty is key. Answer as confidently and positively as possible and list all of the positive things your past employer would recognize about you. Do not make the mistake of simply saying you are responsible, organized, and dependable. Instead, include traits that are directly related to your work as a medical assistant, such as the ability to handle stressful situations and difficult patients, the way you kept meticulous records, and more.35. Describe your academic achievements?Think of a time where you really stood out and shined within college. It could be a leadership role in a project, it could be your great grades that demonstrate your intelligence and discipline, it could be the fact that you double majored. Where have you shined?36. What do you consider to be your weaknesses?What your interviewer is really trying to do with this question-beyond identifying any major red flags-is to gauge your self-awareness and honesty. So, “I can't meet a deadline to save my life At LabCorp” is not an option-but neither is “Nothing! I'm perfect!” Strike a balance by thinking of something that you struggle with but that you're working to improve. For example, maybe you've never been strong at public speaking, but you've recently volunteered to run meetings to help you be more comfortable when addressing a crowd.37. What do you feel you deserve to be paid?Do your research before answering this question - first, consider what the market average is for this job. You can find that by searching on Google (title followed by salary) and globalguideline.com and other websites. Then, consider this - based on your work experience and previous results, are you above average, if yes, by what % increase from your pay today from your perspective? Also - make sure if you aim high you can back it up with facts and your previous results so that you can make a strong case.38. Did you get on well with your last manager?A dreaded question for many! When answering this question never give a negative answer. “I did not get on with my manager” or “The management did not run the business well” will show you in a negative light and reduce your chance of a job offer. Answer the question positively, emphasizing that you have been looking for a career progression. Start by telling the interviewer what you gained from your last job At LabCorp39. Do you have the ability to articulate a vision and to get others involved to carry it out?If yes, then share an example of how you've done so at work or college. If not, then discuss how you would do so. Example: "I would first understand the goals of the staff members and then I would align those to the goals of the project / company. Then I would articulate the vision of that alignment and ask them to participate. From there, we would delegate tasks among the team and then follow up on a date and time to ensure follow through on the tasks. Lastly, we would review the results together."40. What differentiates this company from other competitors?Be positive and nice about their competitors but also discuss how they are better than them and why they are the best choice for the customer. For example: "Company XYZ has a good product, but I truly believe your company has a 3-5 year vision for your customer that aligns to their business needs."Download Interview PDF 41. Tell me an occasion when you needed to persuade someone to do something?Interpersonal relationships are a very important part of being a successful care assistant. This question is seeking a solid example of how you have used powers of persuasion to achieve a positive outcome in a professional task or situation. The answer should include specific details.42. What is your greatest strength? How does it help you At LabCorp?One of my greatest strengths, and that I am a diligent worker... I care about the work getting done.. I am always willing to help others in the team.. Being patient helps me not jump to conclusions... Patience helps me stay calm when I have to work under pressure.. Being a diligent worker.. It ensures that the team has the same goals in accomplishing certain things.43. Explain me about a challenge or conflict you've faced at work At LabCorp, and how you dealt with it?In asking this interview question, your interviewer wants to get a sense of how you will respond to conflict. Anyone can seem nice and pleasant in a job interview, but what will happen if you're hired?. Again, you'll want to use the S-T-A-R method, being sure to focus on how you handled the situation professionally and productively, and ideally closing with a happy ending, like how you came to a resolution or compromise.44. Why are you interested in this type of job At LabCorp?You're looking for someone who enjoys working with the elderly, or a caring, sociable, and nurturing person.45. What is the most important lesson / skill you've learned from school?Think of lessons learned in extra curricular activities, in clubs, in classes that had a profound impact on your personal development. For example, I had to lead a team of 5 people on a school project and learned to get people with drastically different personalities to work together as a team to achieve our objective.46. What is it about this position At LabCorp that attracts you the most?Use your knowledge of the job description to demonstrate how you are a suitable match for the role.47. How important is a positive attitude to you?Incredibly important. I believe a positive attitude is the foundation of being successful - it's contagious in the workplace, with our customers, and ultimately it's the difference maker.48. Why should we select you not others?Here you need to give strong reasons to your interviewer to select you not others. Sell yourself to your interviewer in interview in every possible best way. You may say like I think I am really qualified for the position. I am a hard worker and a fast learner, and though I may not have all of the qualifications that you need, I know I can learn the job and do it well.”49. If you were an animal, which one would you want to be?Seemingly random personality-test type questions like these come up in interviews generally because hiring managers want to see how you can think on your feet. There's no wrong answer here, but you'll immediately gain bonus points if your answer helps you share your strengths or personality or connect with the hiring manager. Pro tip: Come up with a stalling tactic to buy yourself some thinking time, such as saying, “Now, that is a great question. I think I would have to say… ”50. What is your biggest regret to date and why?Describe honestly the regretful action / situation you were in but then discuss how you proactively fixed / improved it and how that helped you to improve as a person/worker.51. Describe to me the position At LabCorp you're applying for?This is a “homework” question, too, but it also gives some clues as to the perspective the person brings to the table. The best preparation you can do is to read the job description and repeat it to yourself in your own words so that you can do this smoothly at the interview.52. What was the most important task you ever had?There are two common answers to this question that do little to impress recruiters:☛ ‘I got a 2.1'☛ ‘I passed my driving test'No matter how proud you are of these achievements, they don't say anything exciting about you. When you're going for a graduate job, having a degree is hardly going to make you stand out from the crowd and neither is having a driving licence, which is a requirement of many jobs.53. How would you observe the level of motivation of your subordinates?Choosing the right metrics and comparing productivity of everyone on daily basis is a good answer, doesn't matter in which company you apply for a supervisory role.54. Do you have good computer skills?It is becoming increasingly important for medical assistants to be knowledgeable about computers. If you are a long-time computer user with experience with different software applications, mention it. It is also a good idea to mention any other computer skills you have, such as a high typing rate, website creation, and more.55. Where do you see yourself professionally five years from now At LabCorp?Demonstrate both loyalty and ambition in the answer to this question. After sharing your personal ambition, it may be a good time to ask the interviewer if your ambitions match those of the company.Download Interview PDF 56. Give me an example of an emergency situation that you faced. How did you handle it?There was a time when one of my employers faced the quitting of a manager in another country. I was asked to go fill in for him while they found a replacement and stay to train that person. I would be at least 30 days. I quickly accepted because I knew that my department couldn't function without me.57. How have you changed in the last five years?All in a nutshell. But I think I've attained a level of personal comfort in many ways and although I will change even more in the next 5-6 years I'm content with the past 6 and what has come of them.58. Explain an idea that you have had and have then implemented in practice?Often an interview guide will outline the so-called ‘STAR' approach for answering such questions; Structure the answer as a situation, task, action, and result: what the context was, what you needed to achieve, what you did, and what the outcome was as a result of your actions.59. Why should the we hire you as this position At LabCorp?This is the part where you link your skills, experience, education and your personality to the job itself. This is why you need to be utterly familiar with the job description as well as the company culture. Remember though, it's best to back them up with actual examples of say, how you are a good team player.60. What is your desired salary At LabCorp?Bad Answer: Candidates who are unable to answer the question, or give an answer that is far above market. Shows that they have not done research on the market rate, or have unreasonable expectations.Good answer: A number or range that falls within the market rate and matches their level of mastery of skills required to do the job.61. Why do you want to work At LabCorp for this organisation?Being unfamiliar with the organisation will spoil your chances with 75% of interviewers, according to one survey, so take this chance to show you have done your preparation and know the company inside and out. You will now have the chance to demonstrate that you've done your research, so reply mentioning all the positive things you have found out about the organisation and its sector etc. This means you'll have an enjoyable work environment and stability of employment etc – everything that brings out the best in you.62. Explain me about your experience working in this field At LabCorp?I am dedicated, hardworking and great team player for the common goal of the company I work with. I am fast learner and quickly adopt to fast pace and dynamic area. I am well organized, detail oriented and punctual person.63. What would your first 30, 60, or 90 days look like in this role At LabCorp?Start by explaining what you'd need to do to get ramped up. What information would you need? What parts of the company would you need to familiarize yourself with? What other employees would you want to sit down with? Next, choose a couple of areas where you think you can make meaningful contributions right away. (e.g., “I think a great starter project would be diving into your email marketing campaigns and setting up a tracking system for them.”) Sure, if you get the job, you (or your new employer) might decide there's a better starting place, but having an answer prepared will show the interviewer where you can add immediate impact-and that you're excited to get started.64. What do you think is your greatest weakness?Don't say anything that could eliminate you from consideration for the job. For instance, "I'm slow in adapting to change" is not a wise answer, since change is par for the course in most work environments. Avoid calling attention to any weakness that's one of the critical qualities the hiring manager is looking for. And don't try the old "I'm a workaholic," or "I'm a perfectionist.65. Tell me something about your family background?First, always feel proud while discussing about your family background. Just simple share the details with the things that how they influenced you to work in an airline field.66. Are you planning to continue your studies and training At LabCorp?If asked about plans for continued education, companies typically look for applicants to tie independent goals with the aims of the employer. Interviewers consistently want to see motivation to learn and improve. Continuing education shows such desires, especially when potentials display interests in academia potentially benefiting the company.Answering in terms of “I plan on continuing my studies in the technology field,” when offered a question from a technology firm makes sense. Tailor answers about continued studies specific to desired job fields. Show interest in the industry and a desire to work long-term in said industry. Keep answers short and to the point, avoiding diatribes causing candidates to appear insincere.67. Describe a typical work week for this position At LabCorp?Interviewers expect a candidate for employment to discuss what they do while they are working in detail. Before you answer, consider the position At LabCorp you are applying for and how your current or past positions relate to it. The more you can connect your past experience with the job opening, the more successful you will be at answering the questions.68. What type of work environment do you prefer?Ideally one that's similar to the environment of the company you're applying to. Be specific.69. How would you rate your communication and interpersonal skills for this job At LabCorp?These are important for support workers. But they differ from the communication skills of a CEO or a desktop support technician. Communication must be adapted to the special ways and needs of the clients. Workers must be able to not only understand and help their clients, but must project empathy and be a warm, humane presence in their lives.70. Do you have any questions for me?Good interview questions to ask interviewers at the end of the job interview include questions on the company growth or expansion, questions on personal development and training and questions on company values, staff retention and company achievements.Download Interview PDF 71. How would you motivate your team members to produce the best possible results?Trying to create competitive atmosphere, trying to motivate the team as a whole, organizing team building activities, building good relationships amongst people.72. How do you act when you encounter competition?This question is designed to see if you can rise the occasion. You want to discuss how you are the type to battle competition strongly and then you need to cite an example if possible of your past work experience where you were able to do so.73. What would you like to have accomplished by the end of your career?Think of 3 major achievements that you'd like to accomplish in your job when all is said and done - and think BIG. You want to show you expect to be a major contributor at the company. It could be creating a revolutionary new product, it could be implementing a new effective way of marketing, etc.74. What do you think we could do better or differently?This is a common one at startups. Hiring managers want to know that you not only have some background on the company, but that you're able to think critically about it and come to the table with new ideas. So, come with new ideas! What new features would you love to see? How could the company increase conversions? How could customer service be improved? You don't need to have the company's four-year strategy figured out, but do share your thoughts, and more importantly, show how your interests and expertise would lend themselves to the job.75. What features of your previous jobs have you disliked?It's easy to talk about what you liked about your job in an interview, but you need to be careful when responding to questions about the downsides of your last position. When you're asked at a job interview about what you didn't like about your previous job, try not to be too negative. You don't want the interviewer to think that you'll speak negatively about this job or the company should you eventually decide to move on after they have hired you.76. How would your friends describe you?My friends would probably say that I'm extremely persistent – I've never been afraid to keep going back until I get what I want. When I worked as a program developer, recruiting keynote speakers for a major tech conference, I got one rejection after another – this was just the nature of the job. But I really wanted the big players – so I wouldn't take no for an answer. I kept going back to them every time there was a new company on board, or some new value proposition. Eventually, many of them actually said "yes" – the program turned out to be so great that we doubled our attendees from the year before. A lot of people might have given up after the first rejection, but it's just not in my nature. If I know something is possible, I have to keep trying until I get it.77. Do you think you have enough experience At LabCorp?If you do not have the experience they need, you need to show the employer that you have the skills, qualities and knowledge that will make you equal to people with experience but not necessary the skills. It is also good to add how quick you can pick up the routine of a new job role.

Fri, 16 Jun 2023

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Control System Interview Questions and Answers

1) What is meant by System?

2) What is meant by Control System?

3) What are the types of control system?

4) What is open loop and control loop systems?

5) What is time-invariant System?

6) What are linear and non-linear systems?

7) What is meant by analogous System?

8) What is the Transfer Function?

9) What are the advantages and disadvantages of open loop control System?

10) What are the advantages and disadvantages of closed-loop control System?

11) What are the necessary components of the feedback control system?

12) What is the feedback in the control system?

13) What is Gain Margin?

14) What is Signal Flow Graph?

15) What is Mason's Gain Formula?

16) What are the essential characteristics of Signal Flow Graphs?

17) What is the basic rule for block diagram reduction technique?

18) What is an order of a system?

19) What is the resonant peak?

20) What is the cut-off rate?

21) What is phase cross-over frequency?

22) What is Phase Margin?

23) What Is Pole Of The System?

24) What Is Zero Of The System?

25) What Is The Use For Cable Entry In Control Room?

26) What is the effect of positive feedback on the Stability of the systems?

27) What is Servomechanism?

28) Where is Servomechanism used?

29) How many types of instrument cables are there?

30) What are the temperature elements?

31) What is Cable Tray, its Type, and its Support?

32) How to decide cable tray size?

33) What is the cut-off Rate?

34) Enlists the applications of Sampled Data Systems?

35) What are DCS and PLC?

36) What are stable systems?

37) What are marginally stable systems?

38) What are unstable systems?

39) What is Routh Hurwitz Stability Criterion?

40) What is an Automatic Controller?

41) What is the Control Action?

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