Radico Khaitan Electrical Engineer Interview Questions and Answers

Q1. What is DOL starter
Ans. 
A DOL starter, or Direct-On-Line starter, is an electrical device used to start and stop motors by directly connecting them to the power supply.
• DOL starters are commonly used in industrial applications.

• They provide a simple and cost-effective method of motor starting.

• The starter consists of a contactor, overload relay, and start/stop buttons.

• When the start button is pressed, the contactor closes and connects the motor ...read more
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Q2. Can you make inter locking
Ans. 
Yes, as an Electrical Technician, I can make interlocking systems to ensure safety and prevent accidents.
• Interlocking systems are designed to prevent two or more electrical circuits from being active simultaneously.

• They use mechanical or electrical mechanisms to ensure that certain conditions are met before allowing power to flow.

• For example, in a motor control panel, interlocking can be used to prevent the motor from ...read more
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Q3. Can you make cable gland
Ans. 
Yes, as an Electrical Technician, I am capable of making cable glands.
• I have experience in selecting and installing cable glands for various electrical systems.

• I am familiar with different types of cable glands such as armored, non-armored, and explosion-proof.

• I can ensure proper sealing and strain relief for cables using appropriate cable glands.

• I am skilled in following industry standards and regulations while making...read more
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Q4. If a motor does not works ,what you do?
Ans. 
If a motor does not work, I would follow a troubleshooting process to identify and fix the issue.
• Check if the motor is receiving power

• Inspect the motor for any visible damage or loose connections

• Test the motor's components, such as the capacitor or brushes

• Use a multimeter to check for continuity or resistance

• Verify if the motor's control circuitry is functioning properly

• If necessary, replace faulty components or seek p
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Q5. No more questions
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Q6. Can you sift deuti
Ans. 
No
• The question is not related to the electrical technician field.

• There is no such term as 'deuti' in the electrical technician domain.

• The answer is NO.
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Good experience cracking The APT in 1st Attempt

Q1. How is your Carrier Background wrt College and Personal life
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Electrical knowledge

Q1. Drawing of Star delta starter
Ans. 
A star delta starter is a type of reduced voltage starter used for starting three-phase induction motors.
• Consists of a star contactor and a delta contactor

• Initially motor is started in star configuration to reduce starting current

• After a set time, switches to delta configuration for full speed operation
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Q2. Contactor interlocking with motors
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Contactor interlocking is a safety feature to prevent simultaneous operation of multiple motors.
• Contactor interlocking ensures only one motor can run at a time to prevent overload.

• It is achieved by using electrical interlocks between contactors of different motors.

• For example, if Motor A is running, the contactor for Motor B will be prevented from closing.

• This prevents both motors from running simultaneously and causin
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Q3. Technical skills
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Q4. Behavior and punchuality
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Q5. Wiring in panels
Ans. 
Wiring in panels involves connecting electrical components using proper techniques and materials.
• Ensure proper wire sizing and insulation for the current being carried

• Follow wiring diagrams and manufacturer instructions for correct connections

• Use wire labels and organize cables neatly for easy troubleshooting

• Check for loose connections and secure all wires properly

• Test the panel for functionality and safety before clos
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