Mechanical Engineering - Hydraulics and Fluid Mechanics

46. 

The variation in the volume of a liquid with the variation of pressure is called its

A. surface tension
B. compressibility
C. capillarity
D. viscosity

Answer: Option B

Explanation:

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47. 

The pressure measured with the help of a pressure gauge is called

A. atmospheric pressure
B. gauge pressure
C. absolute pressure
D. mean pressure

Answer: Option B

Explanation:

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48. 

A venturiflume is used to measure

A. pressure of liquid
B. discharge of liquid
C. pressure difference between two points in a channel
D. pressure difference between two points in a pipe

Answer: Option B

Explanation:

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49. 

The line of action of the force of buoyancy acts through the centre of gravity of the volume of the liquid displaced.

A. True
B. False

Answer: Option A

Explanation:

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50. 

The metacentric height is the distance between the

A. centre of gravity of the floating body and the centre of buoyancy
B. centre of gravity of the floating body and the metacentre
C. metacentre and centre of buoyancy
D. original centre of buoyancy and new centre of buoyancy

Answer: Option B

Explanation:

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