Exicom Production Engineer Interview Questions and Answers

MCQ type exam to qualify for the technical interview.

Q1. What is Capacitor?
Ans. 
A capacitor is an electronic component that stores and releases electrical energy.
• A capacitor consists of two conductive plates separated by an insulating material called dielectric.

• It stores electrical energy in an electric field between the plates.

• Capacitors are commonly used in electronic circuits for energy storage, filtering, timing, and coupling.

• They can be found in various devices such as power supplies, amplifi...read more
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Q2. What is Power factor?
Ans. 
Power factor is a measure of how effectively electrical power is being used in a circuit.
• Power factor is the ratio of real power (kW) to apparent power (kVA) in an AC circuit.

• It indicates the efficiency of power usage and the presence of reactive power.

• A power factor of 1 indicates all power is being used effectively, while a power factor less than 1 indicates inefficiency.

• Inductive loads (e.g., motors) have lagging po...read more
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Q3. How the motor started works?
Ans. 
The motor starter is a device that starts and stops the motor by controlling the flow of electrical power.
• The motor starter consists of a contactor, overload relay, and control circuit.

• When the start button is pressed, the control circuit energizes the coil of the contactor, closing its contacts and allowing current to flow to the motor.

• The overload relay protects the motor from excessive current by sensing the current...read more
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Q4. Types of motor - specifically the capacitor start and run motors.
Ans. 
Capacitor start and run motors are types of motors commonly used in various applications.
• Capacitor start motors use a capacitor to provide high starting torque and are commonly used in appliances like air conditioners and refrigerators.

• Capacitor run motors use a capacitor to improve the motor's efficiency and power factor, and are often found in fans, pumps, and compressors.

• Both types of motors have advantages and disa...read more
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Q5. Types of capacitor and its function.
Ans. 
Capacitors are electronic components that store and release electrical energy. They come in various types and have different functions.
• Electrolytic capacitors are commonly used in power supply circuits to smooth out voltage fluctuations.

• Ceramic capacitors are used for high-frequency applications and noise suppression.

• Film capacitors are suitable for applications requiring high voltage and high current handling.

• Tantalum...read more
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Q6. What is dielectric?
Ans. 
Dielectric is a material that does not conduct electricity but can store and transmit electric charge.
• Dielectric materials have high electrical resistance.

• They are used in capacitors to store and release electrical energy.

• Examples of dielectric materials include glass, rubber, and plastic.

• Dielectric strength is a measure of a material's ability to withstand electrical stress without breaking down.

• Dielectric constant is...read more
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Q1. Which department would you like to work with to contribute to the organization?
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