Hydraulics and fluid mechanics MCQ with Answers

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.

Answer is:

Correct

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

Answer is:

800 kg/m³

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

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.

Answer is:

difference

195) When the Mach number is between __________ the flow is called super-sonic flow.

Answer is:

1 and 6

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