Q. The normal stress is the same in all directions at a point in a fluid, when the fluid is
✅ Correct Answer: (D)
Having no motion of one fluid layer relative to the other
Fluid Mechanics MCQs | Page - 5
Dear candidates you will find MCQ questions of Fluid Mechanics here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. Reciprocating pumps compared to centrifugal pumps
✅ Correct Answer: (C)
Are not subject to air binding
Q. Mass velocity in case of steady flow and through a constant cross-section conduit is independent of the
✅ Correct Answer: (D)
Both A & B
Q. For pipes that must be broken at intervals for maintenance, the connector used should be a/an
✅ Correct Answer: (D)
Union
Q. With the increase in depth, the hydrostatic pressure in an unaccelerated incompressible fluid (in a constant gravitational field)
✅ Correct Answer: (C)
Increases linearly
Q. Water flow rate in a pipe of 3.5 metres diameter can be most economically and conveniently measured by a/an
✅ Correct Answer: (A)
Pitot tube
Q. Interstage coolers are provided in a multistage compressor to
✅ Correct Answer: (A)
Save power in compressing a given volume to a given pressure
Q. Purpose of relief valve in a reciprocating pump is to
✅ Correct Answer: (D)
Protect the pump against developing excessive pressure
Q. Function of air vessel provided in a reciprocating pump is to
✅ Correct Answer: (D)
Reduce discharge fluctuation
Q. The speed of sound in an ideal gas varies as the
✅ Correct Answer: (B)
Temperature
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