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.Management Sciences
Category: Fluid Mechanics
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
Choose the wrong statement ?
A. any weight, floating or immersed in a liquid, is acted upon by a buoyant force
B. Buoyant force is equal to the weight of the liquid displaced
C. The point through which buoyant force acts, is called the center of buoyancy
D. Center of buoyancy is located above the center of gravity of the displaced liquid v
E. Relative density of liquids can be determined by means of the depth of flotation of hydrometer
Dimensions of surface tension are___________________?
A. MlL°T2
B. MlL°Tx
C. MlL r2
D. MlL2T2
E. MlL°t
The flow in which conditions do not change with time at any point, is known as_________________?
A. one dimensional flow
B. uniform flow
C. steady flow
D. turbulent flow
E. streamline flow
A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to_________________?
A. 10 kg
B. 100 kg
C. 1000 kg
D. 1 kg
E. 10,000 kg
Free surface of a liquid behaves like a sheet and tends to contract to smallest possible area due to the_________________?
A. force of adhesion
B. force of cohesion
C. force of friction
D. force of diffusion
E. none of die above
Pressure of the order of 10″‘ torr can be measured by__________________?
A. Bourdon tube
B. Pirani Gauge
C. micro-manometer
D. ionisastion gauge
E. McLeod gauge
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