MECHANICAL ENGINEERING JOB INTERVIEW QUESTIONS

1.)What is difference between Corrective actions and Preventive actions?

Ans.Corrective actions are taken on discrepancies noticed during inspection of products/documents/process whereas preventive actions are taken to eliminate the possibility of discrepancy in future.

2.)What is Operating Pressure?

Ans.The amount of pressure nearest the point of performing work at the output end of a pneumatic system. The system operating pressure is used to specify the capability of valves and actuators.

3.)What are the Advantages and Disadvantages of using LPG in Car?

Ans.Advantages

1. Complete combustion

2. Fuel saving

3. Homogeneous combustion.

Disadvantages

1. As complete combustion is occurring ,more heat liberated,not advised for long journey, engine will be over heated

2. Installation is difficult

3. Reduce engine life efficiency.

4.)What is difference between Welding and Brazing?

Ans. In Welding concentrated heat (high temperature) is applied at the joint of metal and fuse together. In Brazing involves significantly lower temperatures and does not entail the melting of base metals. Instead, a filler metal is melted and forced to flow into the joint through capillary action.