Electrical Maintenance Engineer is a very skilled profession and therefore a highly detail oriented person is required for jobs. Apart from the necessary education and qualification, they should be updated with the required electrical and mechanical concepts. The interview for this post is tough and so preparation should be done before appearing for the interview. You can get some commonly asked Electrical Maintenance Engineer interview questions given below. The answers for these questions are also given for your reference. But it is necessary to be prepared with other questions as well.
1 Q: Tell us about yourself.
A: Describe about your experience in your previous jobs. Say about the work you performed as an electrical engineer and your track record in your previous jobs. Mention your solid background areas to the interviewer. Do not make the answer very lengthy. You should finish this answer within three minutes. As this is just a warm up question in interviews, do not say all the details of yourself. The interviewer will ask you in the remaining questions.
2 Q: What do you think are the job responsibilities of an Electrical Maintenance Engineer?
A: The main job responsibilities of an electrical maintenance engineer include overseeing the electrical tests performed on the project, supervising the installation of electrical systems and being responsible for electrical system projects. However, you should read the job description before appearing for the interview and answer accordingly.
3 Q:. Mention some electrical engineering projects you have supervised or engineered.
A: Give a brief answer to this question mentioning only the important projects. Describe a little information about each project to create an idea to the interviewer regarding what type of work you carried out in your previous job.
4 Q: Describe a difficult work project and how you overcame it.
A: Whatever you say you need to keep your answer positive. Mention the project and describe the situation and steps you took to overcome the difficulty. It is better to use the word challenging instead of difficulty. Difficulty can be considered as your weaknesses also. So keep the tone in a positive way.
5 Q: What problems have you encountered at work?
A: Whenever you mention about problems, also say about the steps you took to overcome the problem. The interviewer is not interested in hearing your problem but he wants to know how you deal with them. Keep the answer in a positive tone.
6 Q:. Why should we hire you?
A: This is a question which has to be answered carefully. It is time to highlight about your skills and abilities which relate with the job description. You need not compare yourself with other candidates in this question. Mention only the unique skills which make you stand apart from other candidates. Explain why you will make a good fit for the company.
7 Q:. What challenges are you looking for in the position of Electrical Maintenance Engineer?
A: Be open to challenges. Challenges will help you to utilize your skills and abilities. You can also mention that you are motivated by challenges and that you have the ability to meet the challenges. You can add by describing some examples of your previous job.
8 Q:. How long would you work for us?
A: The interviewer is not expecting you to give specific dates for your answer. But avoid giving answers which make the interviewer feel that you will leave soon. Make him believe that you will be in the company for a good amount of time.
9 Q:. Why do you want to work here?
A: Do some research about the company and have full knowledge about the job description. The interviewer wants to find out your intentions of working here. So give a valid reason for your interest in joining the company.
10 Q: Are you responsible for the quality standards of your projects?
A: An Electrical Maintenance Engineer has to work in accordance with certain quality standards. You need to describe how you ensure compliance and also what steps you take to verify that all workers comply with contractual requirements. If you have done this before, describe in brief.
11 Q:. What is the most recent skill you have learned that related to Electrical Maintenance Engineer?
A: Describe the skill and how it is going to help you in your work as Electrical Maintenance Engineer. It is important to keep on acquiring skills so as to add value to your qualifications. The interviewers like candidates who are keen on acquiring new skills.
12 Q: Do you require some maintenance training to work with us?
A: The answer to this question depends on the type of industry and your skills. Be honest in your answer. If training is required it is better to say then to find difficulty later on while working with the company. The interviewer will also take it in a positive way that you are interested in acquiring training.
13 Q: Do you have the knowledge about necessary mechanical equipments, machinery and maintenance procedures.
A: An Electrical Maintenance Engineer is expected to have knowledge about necessary mechanical equipments, machinery and maintenance procedures. Describe in short what you know or utilized during your previous job as well as such knowledge will help you for the role of Electrical Maintenance Engineer.
14 Q: What kind of salary are you expecting for as an Electrical Maintenance Engineer?
A: Here you should be careful not to answer the question directly as the salary you recommend can be too high or too low. If they insist provide them a salary scale as acceptable by you. Or else say that the salary should match with your ability and as per the industry standards.
Electrical engineering is a field of engineering that generally deals with the study and application of electricity, electronics and electromagnetism. There are lots of opportunities for jobs in electrical engineering industry. Be prepared with the below given questions asked in Diploma Electrical Engineering Interview. However, you should be clear with concepts and be prepared with unexpected questions also. The following questions are some of the frequently asked Diploma Electrical Engineering interview questions.
1 Q: What is electric traction?
A: Electric traction means using the electric power for traction system i.e. for railways, trams, trolleys etc. Electric traction means use of the electricity for all the above machines.
2 Q: What is the difference between generator and alternator?
A: Generators and alternators both generate electricity. An alternator can be called a type of generator. The main difference between them is in regard to what spins and what is fixed. An alternator is a charging system for cars that produces electricity. Generators are used in the production of large scale electricity. Alternators conserve energy by using only the energy that is needed, while generators use all the energy that is produced.
3 Q:. What do you know about Active and reactive power?
A: Active power is the real power resulting in actual work done. The inductive load requires a higher current for the same amount of power and thus the power source also needs to supply this increased current. As this increased current does not result in any actual work done , it is termed as reactive power.
4 Q: What is meant by derating factor?
A: Derating is a technique usually employed in electrical power and electronic devices, wherein the devices are operated at less than their rated maximum power dissipation, taking into account the case or body temperature , the ambient temperature and the type of cooling mechanism used.
5 Q:. What is slip in an induction motor?
A: Slip is defined as the difference between the flux speed and the rotor speed. Speed of the rotor of an induction motor is always less than its synchronous speed. The speed performance of an electric motor can be calculated by a method known as percent slip. The slip is essential for producing torque that increases with increasing load.
6 Q:. Describe the purpose of transformer in electrical engineering.
A: A transformer is a device which produces or supplies current by switching from high voltage to low voltage. It transforms electrical energy from one circuit to another without any direct electrical connection and with the help of mutual induction between two windings.
7 Q:. What are the essential parts of the Generator?
A: The essential parts of a generator are electric panel, generator head assembly, engine and motherboard. The electrical panel is the control center of the generator. The generator head assembly consists of components that actually produce electrical power, the engine is what is used to power the rotor and stator unit. The motherboard is the brains of the generator which controls and monitors the various elements of the generator.
8 Q:. What is UPS?
A: UPS stands for Uninterruptible Power Supply. It is a device that helps provide consistent power to a computer system. It allows a computer to keep running for at least a short time when the primary power source is lost. A UPS contains a battery that kicks in when the device senses a loss of power from the primary source.
9 Q:. What is the difference between induction motor and servo motor?
A: Servo motors are used to control speed systems. It varies the field current applied to the generator which in turn controls the speed of the motor connected. Induction motor will work on synchronous speed. An induction motor has high inertia and servo motor has a very low inertia.
10 Q: What is pu in Electrical Engineering?
A: Pu stands for per unit and this will be used in single line diagram of power distribution and it is like a huge electrical circuit with no components with different ratings. To bring all the ratings into common platform Pu concept is used in which , in general largest MVA and KV ratings of the component is considered as base values , then all other component ratings will get back into this basis. Those values are called as pu values.
11 Q:. What is a transducer?
A: A transducer is a device that changes one form of energy into another. Common examples include microphones, loudspeakers, thermometers, position and pressure sensors, and antenna.
12 Q: What is the difference between electronic and electrical engineering?
A: Electrical engineering relates to the problems associated with large scale electrical systems such as power transmission from power house to the load. It also deals with electrical appliances and their control. Electronics engineering deals with the study of small scale electronic systems including computers and integrated circuits and their applications to process information.
13 Q: Explain the working principle of servomotor.
A: Servo motors are geared DC motors with the closed loop circuitry incorporated within them. The basic configuration of a servo motor composed of a DC motor, gearbox, potentiometer and control circuit. DC motor is used to move a gearbox with a large reduction ratio. The final shaft imposes a force on the external load and simultaneously acts on the axis of the feedback of potentiometer. So, the potentiometer senses the position of the axis and sends a corresponding voltage to an operational amplifier. This voltage compared to the input voltage that determines the desired position of the shaft, producing a voltage in the output of the comparator. This voltage powers the motor such that the shaft moves in the necessary direction to align with the angle that corresponds to the voltage applied to the input.