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.Management Sciences
Category: Fluid Mechanics
The upper surface of a weir over which water flows is known is_____________________?
0
A. crest
B. nappe
C. sill
D. weir top
E. contracta
The speed of sound in a ideal gas varies directly as its__________________?
A. pressure
B. temperature
C. density
D. modulus of elasticity
E. absolute temperature
Free surface of a liquid tends to contract to the smallest possible area due to force of_______________?
A. surface tension
B. viscosity
C. friction
D. cohesion
E. adhesion
The bulk modulus of elasticity with increase in pressure__________________?
A. increases
B. decreases
C. remains constant
D. increases first up to certain limit and then decreases
E. unpredictable
Which of the following instruments is used to measure flow on the application of Bernoulli’s theorem_________________?
A. Venturimeter
B. Orifice plate
C. nozzle
D. pitot tube
E. all of the above
Which of the following meters is not associated with viscosity____________________?
A. Red wood
B. Say bolt
C. Engler
D. Orsat
E. none of the above
Bernoulli equation deals with the law of conservation of__________________?
A. mass
B. momentum
C. energy
D. work
E. force
Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be_______________?
A. 1000 kg
B. 4000 kg
C. 2000 kg
D. 8000 kg
E. 16000 kg
Resultant pressure of the liquid in the case of an immersed body acts through____________________?
A. centre of gravity
B. centre of pressure
C. metacentre
D. centre of buoyancy
E. in between e.g. and centre of pressure
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