Viraj Profiles Junior Engineer Electrical Interview Questions and Answers

Q1. What is generator
Ans. 
A generator is a device that converts mechanical energy into electrical energy.
• Generates electricity through electromagnetic induction

• Common types include diesel generators, gas generators, and wind turbines

• Used in power plants, homes, and businesses for backup power
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Q2. What is transformer
Ans. 
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Consists of two coils of wire, known as primary and secondary coils

• Primary coil receives electrical energy and creates a magnetic field

• Magnetic field induces a voltage in the secondary coil, transferring energy

• Used to step up or step down voltage levels in power distribution

• Examples include power tr...read more
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Q1. In electrical engineering techinical questions
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Q1. Electrical materials
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Q2. Power system protection
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Q3. Electrical energy system
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Q4. High voltage direct current
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Q5. Electrical control system
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Q1. Electrical management
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Q1. What is your favourite subject?
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Q2. Different types of starter
Ans. 
Starters are used to control the starting and stopping of motors. Different types of starters are used based on the motor's power rating and application.
• Direct On-Line (DOL) Starter

• Star-Delta Starter

• Auto Transformer Starter

• Soft Starter

• Variable Frequency Drive (VFD) Starter
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Q3. Parallel operations of transformer
Ans. 
Parallel operation of transformers refers to connecting two or more transformers with the same voltage ratio and frequency to supply a common load.
• Parallel operation increases the capacity of the system and provides redundancy.

• The transformers must have the same voltage ratio, impedance, and phase angle.

• Proper synchronization is necessary to avoid circulating currents.

• Parallel operation can be achieved by using a commo...read more
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Q1. Electrical maintainence
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Q2. Transfomer realated question
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Q3. Transformer realated
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Q1. Motor maintainence realated
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Q2. Motor working type question
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Q3. Related to power plant
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Realated to electrical maintainence

Q1. What is capacity your furnace
Ans. 
The capacity of a furnace refers to its heating output, typically measured in BTUs or tons.
• Furnace capacity is determined by the amount of heat it can produce.

• It is usually measured in BTUs (British Thermal Units) or tons.

• Higher capacity furnaces can produce more heat and are suitable for larger spaces.

• For example, a furnace with a capacity of 80,000 BTUs can heat a larger area compared to one with a capacity of 40,000
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Q2. What is drive components in CCM department
Ans. 
Drive components in CCM department are the parts that enable the motor to function properly.
• Drive components include motors, gears, belts, and pulleys.

• They work together to transfer power from the motor to the machine.

• The components must be properly sized and aligned to ensure efficient operation.

• Examples of machines that use drive components include conveyor belts, pumps, and fans.
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Q1. Kothagudem thermal Power station ktps tharmal
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Q2. 5years experience kothagudem thermal Power station
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Reasoning and aptitude with technical

Q1. Motor and transformer related questions
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Q2. Tell me about yourself
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