Mechanical Engineering - Hydraulics and Fluid Mechanics

46. 

The specific gravity of water is taken as

A. 0.001
B. 0.01
C. 0.1
D. 1

Answer: Option D

Explanation:

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47. 

A pitot tube is used to measure the

A. velocity of flow at the required point in a pipe
B. pressure difference between two points in a pipe
C. total pressure of liquid flowing in a pipe
D. discharge through a pipe

Answer: Option A

Explanation:

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48. 

The total head of a liquid particle in motion is equal to

A. pressure head + kinetic head + potential head
B. pressure head - (kinetic head + potential head)
C. potential head - (pressure head + kinetic head)
D. kinetic head - (pressure head + potential head)

Answer: Option A

Explanation:

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49. 

An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.

A. free
B. partially
C. full

Answer: Option C

Explanation:

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50. 

The reciprocal of Euler's number is called Newton number.

A. Yes
B. No

Answer: Option A

Explanation:

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