Jai Balaji Group Metallurgy Engineer Interview Questions and Answers

Q1. Electrical basis questions. As that ckt. diagrams of motor satr and delta connection control & power supply.
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Q2. Motor megger value & cable size as per rating of motor.
Ans. 
Motor megger value should be at least twice the rated voltage of the motor. Cable size should be selected based on the full load current of the motor.
• Motor megger value should be at least 2 times the rated voltage of the motor to ensure insulation integrity.

• Cable size should be selected based on the full load current of the motor to prevent overheating and voltage drop.

• For example, for a motor rated at 400V, the megger...read more
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Q3. OLR value of motor as per rating of motor & MPCB rating.
Ans. 
OLR value of a motor is determined by the rating of the motor and the MPCB rating.
• OLR value is the Overload Relay value, which is used to protect the motor from overload conditions.

• The OLR value is typically set based on the rating of the motor and the rating of the Motor Protection Circuit Breaker (MPCB).

• For example, if a motor has a rating of 5 HP and the MPCB rating is 10A, the OLR value would be calculated accordin
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Q1. What is the theory behind the transformer’s operation principle?
Ans. 
A transformer operates on the principle of electromagnetic induction to transfer electrical energy between two or more circuits.
• Transformers consist of two coils of wire, known as the primary and secondary coils, wrapped around a core made of ferromagnetic material.

• When an alternating current flows through the primary coil, it creates a changing magnetic field in the core.

• This changing magnetic field induces a voltage ...read more
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Q2. How and why is a transformer’s rated capacity expressed?
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A transformer's rated capacity is expressed in terms of its maximum power output, typically in kilovolt-amperes (kVA).
• Rated capacity is expressed in kVA to indicate the maximum power output the transformer can handle.

• This rating helps determine the appropriate size of transformer needed for a specific application.

• For example, a transformer with a rated capacity of 500 kVA can handle a maximum power output of 500 kilovo...read more
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Be confident in your answer and no more confusing. Think twice, answer Little bit similar but u have to choose one it has a more accurate. Time management is main. What time you did taken to answer for each question.

Talk short with important matter. Your voice should to audible for all.

Q1. This is related to your study. Befor going to interview first you should know the which type of company that is and what they produce. Go to the deep through it on this basis you have to prepare.
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Q2. Sketch the Lathe diagram Stress strain diagram About Boiler About hydraulic system About pneumatic system About engines About machanical properties Project principles About manpower handling
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Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Tell me about yourself.
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Q1. Tell me about your previous job
Ans. Where i m working that is mould manufacturing company we works within 0.01 mm
Answered by Ravi Shankar Mandal
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Basic electrical questions , some drive related questions and some questions come from electrical machines

Q1. Sc test & oc test of TFR, differential relay connection and how it protects from fault, questions related from my internship programme about OPTCL, and. What are the types motors and which types of motors ...read more
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