The maximum thickness of boundary layer in a pipe of radius r is____________________?
The maximum thickness of boundary layer in a pipe of radius r is____________________?
A. 0
B. r/2
C. r
D. 2r
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Fanning friction factor for laminar flow of fluid in a circular pipe is
Question: Fanning friction factor for laminar flow of fluid in a circular pipe is
[A].not a function of the roughness of pipe wall. [B].
inversely proportional to Reynolds number. [C].
both (a) & (b). [D].
neither (a) nor (b). Answer: Option C
Explanation:
No answer description available for this question.
Gradually varied flow in open channel is a/an __________ flow.
Question: Gradually varied flow in open channel is a/an __________ flow.
[A].steady uniform [B].
steady non-uniform [C].
unsteady uniform [D].
unsteady non-uniform Answer: Option B
Explanation:
No answer description available for this question.
To avoid an interruption in the flow of a syphon, an air vessel is provided__________________?
To avoid an interruption in the flow of a syphon, an air vessel is provided__________________?A. at the inlet
B. at the outlet
C. at the summit
D. ay nay point between inlet and outlet
E. none of the aboveWorking principle of dead weight pressure gauge tester is based on_______________?
Working principle of dead weight pressure gauge tester is based on_______________?A. Pascal’s law
B. Dalton’s law of partial pressure
C. Newton’s law of viscosity .
D. Avogadro’s hypothesis
E. Second law of thermodynamicAt a constant speed of the centrifugal pump . it __________ the impeller diameter.
Question: At a constant speed of the centrifugal pump . it __________ the impeller diameter.
[A].capacity varies directly with [B].
head varies as the square of [C].
horsepower varies as the cube of [D].
all (a), (b) and (c) Answer: Option D
Explanation:
No answer description available for this question.
The conditions for the stable equilibrium of a floating body are___________________?
The conditions for the stable equilibrium of a floating body are___________________?A. the meta-center should lie above the center of gravity
B. the center of buoyancy and the center of gravity must lie on the same vertical line
C. a righting couple should be formed
D. all the above are correct
E. none of the above is correct