Q. The unit of viscosity is
✅ Correct Answer: (B)
kg-sec/metre
Hydraulics and Fluid Mechanics MCQs | Page - 2
Dear candidates you will find MCQ questions of Hydraulics and 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. Select the correct statement
✅ Correct Answer: (D)
Weber's number is the ratio of inertia force to surface tension force.
Q. Choose the wrong statement. Alcohol is used in manometer, because
✅ Correct Answer: (A)
Its vapour pressure is low
Q. When a tank containing liquid moves with an acceleration in the horizontal direction, then the free surface of the liquid
✅ Correct Answer: (C)
Falls on the front end
Q. A pressure of 25 m of head of water is equal to
✅ Correct Answer: (B)
245 kN/ m²
Q. The hammer blow in pipes occurs when
✅ Correct Answer: (C)
The flow of fluid through the pipe is suddenly brought to rest by closing of the valve
Q. The resultant upward pressure of the fluid on an immersed body is called
✅ Correct Answer: (B)
Buoyancy
Q. When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as
✅ Correct Answer: (D)
Submerged weir
Q. If the surface of liquid is convex, men
✅ Correct Answer: (C)
Cohesion pressure is increased
Q. The atmospheric pressure with rise in altitude decreases
✅ Correct Answer: (B)
First slowly and then steeply
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