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.

M

Mr. Dubey • 52.26K Points
Coach 

Q. Dynamic viscosity of most of the gases with rise in temperature

(A) Increases
(B) Decreases
(C) Remain unaffected
(D) Unpredictable
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M

Mr. Dubey • 52.26K Points
Coach 

Q. According to Bernoulli's equation

(A) Z + p/w + v²/2g = constant
(B) Z + p/w - v²/2g = constant
(C) Z - p/w + v²/2g = constant
(D) Z - p/w - v²/2g = constant
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M

Mr. Dubey • 52.26K Points
Coach 

Q. Newton's law of viscosity is a relationship between

(A) Pressure, velocity and temperature
(B) Shear stress and rate of shear strain
(C) Shear stress and velocity
(D) Rate of shear strain and temperature
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M

Mr. Dubey • 52.26K Points
Coach 

Q. Differential manometer is used to measure

(A) Pressure in pipes, channels etc.
(B) Atmospheric pressure
(C) Very low pressure
(D) Difference of pressure between two points
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M

Mr. Dubey • 52.26K Points
Coach 

Q. Non uniform flow occurs when

(A) The direction and magnitude of the velocity at all points are identical
(B) The velocity of successive fluid particles, at any point, is the same at successive periods of time
(C) Velocity, depth, pressure, etc. change from point to point in the fluid flow.
(D) The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane
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M

Mr. Dubey • 52.26K Points
Coach 

Q. Hot wire anemometer is used to measure

(A) Pressure in gases
(B) Liquid discharge
(C) Pressure in liquids
(D) Gas velocities
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M

Mr. Dubey • 52.26K Points
Coach 

Q. Venturimeter is used to

(A) Measure the velocity of a flowing liquid
(B) Measure the pressure of a flowing liquid
(C) Measure the discharge of liquid flowing in a pipe
(D) Measure the pressure difference of liquid flowing between two points in a pipe line
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M

Mr. Dubey • 52.26K Points
Coach 

Q. The pressure measured with the help of a pressure gauge is called

(A) Atmospheric pressure
(B) Gauge pressure
(C) Absolute pressure
(D) Mean pressure
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M

Mr. Dubey • 52.26K Points
Coach 

Q. The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the Centroid, if

(A) The area is horizontal
(B) The area is vertical
(C) The area is inclined
(D) All of the above
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M

Mr. Dubey • 52.26K Points
Coach 

Q. The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to

(A) Half the depth
(B) Half the breadth
(C) Twice the depth
(D) Twice the breadth
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