February 9, 2014

MECHANICAL ENGINEERING JOB INTERVIEW QUESTIONS

1.What is critical temperature in metals ?

Ans: It is the temperature at which the phase change occurs in metals.

2.What is coaxing ?

Ans: It is the process of improving fatigue properties by first under-stressing and then increasing the stress in small increments.

3.What is the difference between basic hole and basic shaft ?

Ans: A basic hole is one whose lower deviation is zero and in case of basic shaft the upper deviation is zero

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