Q. Dynamic viscosity of most of the gases with rise in temperature
✅ Correct Answer: (A)
Increases
Hydraulics and Fluid Mechanics MCQs | Page - 3
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. According to Bernoulli's equation
✅ Correct Answer: (A)
Z + p/w + v²/2g = constant
Q. Newton's law of viscosity is a relationship between
✅ Correct Answer: (B)
Shear stress and rate of shear strain
Q. Differential manometer is used to measure
✅ Correct Answer: (D)
Difference of pressure between two points
Q. Non uniform flow occurs when
✅ Correct Answer: (C)
Velocity, depth, pressure, etc. change from point to point in the fluid flow.
Q. Hot wire anemometer is used to measure
✅ Correct Answer: (D)
Gas velocities
Q. Venturimeter is used to
✅ Correct Answer: (C)
Measure the discharge of liquid flowing in a pipe
Q. The pressure measured with the help of a pressure gauge is called
✅ Correct Answer: (B)
Gauge pressure
Q. The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the Centroid, if
✅ Correct Answer: (D)
All of the above
Q. The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to
✅ Correct Answer: (A)
Half the depth
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