Wednesday, December 4, 2013

MECHANICAL ENGINEERING JOB INTERVIEW QUESTIONS

MECHANICAL ENGINEERING JOB INTERVIEW QUESTIONS:-

1.). What is anisotropy ?

Ans: The phenomenon of different properties in different directions is called anisotropy.

2.)What is vapour pressure and when it becomes important ?

Ans: Vapour pressure is the partial pressure created by the vapour molecules when evaporation takes place within an enclosed space. It becomes important when negative
pressures are involved.

3.)Explain absolute viscosity ?

Ans: It is the ratio of shear stress and the gradient of velocity with distance between a fixed plate and moving plate (Its unit is Pa . s).

4.)What do you understand by acoustic velocity ?

Ans: Acoustic velocity is the speed of a small pressure (sound) wave in a fluid.

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