JSW Group Electrician Interview Questions and Answers

Q1. Unit of resistance
Ans. 
Ohm
• Unit of resistance in electrical circuits

• Symbol is Ω (omega)

• Named after German physicist Georg Simon Ohm

• Measured using an ohmmeter
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Q2. Unit of current
Ans. 
The unit of current is Ampere (A)
• The unit of current is Ampere (A)

• Current is the flow of electric charge in a circuit

• 1 Ampere is equal to 1 Coulomb per second

• Commonly used prefixes for current are milliampere (mA) and microampere (μA)
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Q1. What is Transformer ?
Ans. 
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Consists of primary and secondary coils

• Changes voltage levels (step-up or step-down)

• Used in power distribution systems

• Examples: power transformers, distribution transformers
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Q2. ACB and VCB ?
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Q3. What is CRO ?
Ans. 
CRO stands for Cathode Ray Oscilloscope, a device used to display and analyze the waveform of electrical signals.
• CRO is commonly used by electricians and engineers to troubleshoot electrical circuits.

• It displays voltage waveforms in real-time, allowing users to identify issues such as voltage spikes or distortions.

• CROs are essential tools for testing and measuring electronic equipment.

• Example: A CRO can be used to anal...read more
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Q4. What is motor ?
Ans. 
A motor is a device that converts electrical energy into mechanical energy to produce motion.
• Motors are commonly used in various applications such as industrial machinery, household appliances, and vehicles.

• There are different types of motors including AC motors, DC motors, and servo motors.

• Motors consist of a rotor and a stator, with the rotor rotating when electrical current is applied.

• Examples of motors include elec...read more
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Q1. Tell me about yourself
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Q2. Tell me about your quallification
Ans. 
I am a certified electrician with a diploma in Electrical Engineering and 5 years of hands-on experience.
• Certified electrician

• Diploma in Electrical Engineering

• 5 years of hands-on experience
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Q1. Working of reverse forward with drive .
Ans. 
Reverse forward with drive is a control method used in electrical systems to change the direction of rotation of a motor.
• Reverse forward with drive is achieved by using a motor controller that can switch the polarity of the motor's power supply to change its direction of rotation.

• This method is commonly used in applications where the motor needs to be able to run in both forward and reverse directions, such as in conve...read more
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Q2. Power and control wiring of EOT crane.
Ans. 
Power and control wiring of EOT crane involves connecting electrical components to ensure proper functioning.
• Power wiring includes connecting the main power supply to the crane motor and other electrical components.

• Control wiring involves connecting control devices such as push buttons, limit switches, and relays to control the movement of the crane.

• Proper labeling and color-coding of wires is essential for easy troubl...read more
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Q1. What is interested for you in this company.
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Q1. Electric releted
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Q2. Motor dol star delta starter
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Q1. Tell me about yourself I am Ashutosh Singh
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I am Ashutosh Singh
Experience 9 years