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Hydraulic and Fluid Machines - Interview Questions and Answers

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131. 62. Which of the following is the unit of kinematic viscosity
A. pascal
B. poise
C. stoke
D. faraday
E. none of the above.
Explanation:
132. A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will
A. increase
B. decrease
C. remain same
D. increase/decrease depending on depth of immersion
E. unpredictable.
Explanation:
133. Falling drops of water become spheres due to the property of
A. adhesion
B. cohesion
C. surface tension
D. viscosity
E. compressibility.
Explanation:
134. Operation of McLeod gauge used for low pressure measurement is based on the principle of
A. gas law
B. Boyle's law
C. Charle's law
D. Pascal's law
E. McLeod's law.
Explanation:
135. The vapour pressure over the concave surface is
A. less man the vapour pressure over the plane surface
B. equal to the vapour pressure over the plane surface
C. greater than the vapour pressure over the plane surface
D. zero
E. none of the above.
Explanation:
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