Hydraulics and Fluid Mechanics in ME If the net positive suction head (NPSH) requirement for the pump is not satisfied, then Cavitation will be formed Excessive power will be consumed No flow will take place Efficiency will be low Cavitation will be formed Excessive power will be consumed No flow will take place Efficiency will be low ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The efficiency of power transmission through pipe is (where H = Total supply head, and hf = Head lost due to friction in the pipe) H/(H - hf ) (H + hf )/H H/(H + hf ) (H - hf )/H H/(H - hf ) (H + hf )/H H/(H + hf ) (H - hf )/H ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The depth ādā below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow) 0.223 D 0.707 D 0.423 D 0.577 D 0.223 D 0.707 D 0.423 D 0.577 D ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME 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 100 kg 1000 kg 10 kg 1 kg 100 kg 1000 kg 10 kg 1 kg ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A pressure of 25 m of head of water is equal to 2500 kN/m2 2.5 kN/m2 25 kN/m2 245 kN/m2 2500 kN/m2 2.5 kN/m2 25 kN/m2 245 kN/m2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The increase of temperature results in decrease in viscosity of gas increase in viscosity of gas decrease in viscosity of liquid increase in viscosity of liquid decrease in viscosity of gas increase in viscosity of gas decrease in viscosity of liquid increase in viscosity of liquid ANSWER DOWNLOAD EXAMIANS APP
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