Friday, November 29, 2013

MECHANICAL ENGINEERING JOB INTERVIEW QUESTIONS

MECHANICAL ENGINEERING JOB INTERVIEW QUESTIONS:-

1.)Explain the difference between poise and stoke.

Ans: Poise is the unit of viscosity in CGS unit and is measured in dyne sec/cm2.1 poise =10_1 Pa s.
Stoke is the unit of kinematic viscosity in CGS units and is measured in cm2/s.

2.)What do you understand by center of buoyancy ?

Ans: Center of buoyancy is the center of gravity of the displaced liquid and buoyant force acts through it.

3.)What is metacentre ?

Ans: Metacentre is the point at the intersection of the buoyancy with the vertical axis of the body.

4.)Under what condition a drill may not cut ?

Ans: When the cutting lips are not provided with clearance angles. It will cut if 12° clearance angle is ground.

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