Kuwait National Petroleum Company Electrical Maintenance Technician Interview Questions and Answers

Q1. Tell me about yourself
Ans. 
I am a dedicated Maintenance Engineer with a strong background in mechanical and electrical systems.
• Experienced in troubleshooting and repairing machinery

• Skilled in preventive maintenance practices

• Familiar with PLC programming and automation systems

• Strong attention to detail and problem-solving skills
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Q2. Why do you want to change jobs
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Seeking new challenges and opportunities for growth in a dynamic work environment.
• Looking for new challenges and opportunities for professional growth

• Interested in working in a more dynamic and innovative work environment

• Seeking a position with more responsibilities and opportunities to learn new skills
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Q1. Tell the working principle of industrial compressors
Ans. 
Industrial compressors work by increasing the pressure of a gas to create mechanical energy.
• Industrial compressors use a motor to draw in and compress gas, then release it at a higher pressure.

• The compressed gas can be used for various industrial applications such as powering pneumatic tools or HVAC systems.

• Common types of industrial compressors include reciprocating, rotary screw, and centrifugal compressors.
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Q2. Overhauling procedure of centrifugal pump
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The overhauling procedure of a centrifugal pump involves disassembling, inspecting, repairing/replacing components, and reassembling the pump.
• Start by shutting off power to the pump and draining the system

• Remove the pump casing and impeller to access internal components

• Inspect components for wear, damage, or corrosion

• Repair or replace damaged components such as bearings, seals, or impeller

• Reassemble the pump, ensuring ...read more
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General apptutude questions like tume rate ,work rate-basic

Q1. For any interview cv should be as per company profile. Trying to explore within to mention in cv related will help. I believe initial phase is crucial and in our hand, we should drive it towards our known ...read more
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Q2. As my recruitment was for refinery questions were-types of pumps,types of compressors.
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Q3. Subjects like fluid dynamics,Heat transfer ,mechanics of solids, industrial engineering will help.
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Q1. It is mostly regarding ourselves,our behavior. One should try to be as clear ,reasonable as possible.
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Apitude round was conducted

Q1. Losses in transformer
Ans. 
Losses in transformer refer to energy losses that occur during the conversion of electrical energy from one voltage level to another.
• There are two main types of losses in transformers: copper losses and iron losses.

• Copper losses occur due to the resistance of the copper windings and are also known as I^2R losses.

• Iron losses, also known as core losses, occur due to hysteresis and eddy current losses in the transformer c...read more
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Q2. Power factor significance
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Power factor is the ratio of real power to apparent power in an electrical system, indicating the efficiency of power usage.
• Power factor is important for measuring the efficiency of electrical systems.

• A high power factor indicates efficient power usage, while a low power factor indicates wastage.

• Improving power factor can reduce electricity costs and increase system capacity.

• Power factor correction devices like capacit...read more
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Q1. Very basic Questions
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Q2. Working Principle of instruments
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The working principle of instruments involves the use of various physical or electrical phenomena to measure or control variables.
• Instruments use principles such as pressure, temperature, flow, level, or electrical signals to perform their functions.

• For example, a pressure gauge works based on the principle of elastic deformation of a diaphragm or Bourdon tube.

• A thermocouple measures temperature by utilizing the Seebec...read more
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Q1. Use of antipumping
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Antipumping is a feature in electrical systems to prevent the motor from restarting immediately after a trip.
• Antipumping is a safety feature that prevents the motor from restarting immediately after a trip to avoid damage.

• It is typically used in motor control circuits to ensure proper operation and prevent overload.

• Antipumping can be achieved through the use of interlocking mechanisms or time delay relays.

• For example, ...read more
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Q1. Regarding Maintenance practice, Iso documentation, Audit and Automation
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Q1. Family background, Education, Previous experience and Salary negotiation
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