Isgec Heavy Engineering Senior Fabrication Engineer Interview Questions and Answers

The repeated burning of a 22 kW AOP motor CT cable may be due to overloading, short circuits, poor insulation, or incorrect cable sizing.

• Check for overloading of the motor causing excessive heat in the cable

• Inspect for short circuits in the motor or the wiring

• Ensure proper insulation of the cable to prevent overheating

• Verify if the cable size is appropriate for the motor's power requirements

Bypassing the CT of an AOP motor can lead to overcurrent and damage to the motor.

• Bypassing the CT can result in the motor drawing excessive current.

• This can lead to overheating of the motor windings.

• Overcurrent can cause damage to the motor components.

• It can also pose a safety risk due to potential electrical faults.

PWHT stands for Post Weld Heat Treatment. It is a process used to relieve residual stresses and improve the mechanical properties of welds.

• PWHT is commonly used in the welding industry to prevent cracking and improve the overall quality of welds.

• Post heating and pre heating are processes used before and after welding to control the cooling rate of the material and reduce the risk of cracking.

• PMI stands for Positive Mat...read more