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Engineering
Mechanical
ME Set-1
Hydraulics and fluid mechanics
190

Hydraulics and fluid mechanics MCQ with Answers

190) Barometer is used to measure

velocity of liquid

atmospheric pressure

pressure in pipes and channels

difference of pressure between two points in a pipe

Answer is:

atmospheric pressure

Explanation:

Atmospheric pressure: The atmospheric air exerts a normal pressure upon all surfaces with which it is in contact and it is known as atmospheric pressure. Atmospheric pressure is also known as barometric pressure. Barometer is used to measure atmospheric pressure.

Barometer is used to measure

Hydraulics and fluid mechanics MCQ with Answers

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Related Hydraulics and fluid mechanics MCQ with Answers

191) A closed tank is completely filled with an oil. If it is made to move with a horizontal acceleration, then the pressure at the back end will be more than that at the front end.

Correct

Incorrect

Answer is:

Correct

192) The mass of 2.5 m³ of a certain liquid is 2 tonnes. Its mass density is

200 kg/m³

400 kg/m³

600 kg/m³

800 kg/m³

Answer is:

800 kg/m³

193) The dynamic viscosity of the liquid __________ with rise in temperature.

remain unaffected

increases

decreases

none of these

Answer is:

decreases

194) When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures.

sum

difference

arithmatic mean

geometric mean

Answer is:

difference

Hydraulics and fluid mechanics MCQ with Answers

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