Hydraulics and Fluid Mechanics in ME A glass tube of small diameter (d) is dipped in fluid. The height of rise or fall in the tube given by (where w = Specific weight of liquid, α = Angle of contact of the liquid surface, and σ = Surface tension) wd/4σ cosα σ cosα/4wd 4σ cosα/wd 4wd/σ cosα wd/4σ cosα σ cosα/4wd 4σ cosα/wd 4wd/σ cosα ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Which of the following is an incorrect statement ? None of these Discharge is independent of orientation of venturimeter whether it is horizontal, vertical or inclined Flow nozzle is cheaper than venturimeter but has higher energy loss Coefficient of contraction of a venturimeter is unity None of these Discharge is independent of orientation of venturimeter whether it is horizontal, vertical or inclined Flow nozzle is cheaper than venturimeter but has higher energy loss Coefficient of contraction of a venturimeter is unity ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a footstep bearing, if the radius of the shaft is doubled, then the torque required to overcome the viscous resistance will be Four times Double Eight times Sixteen times Four times Double Eight times Sixteen times ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The specific gravity of an oil whose specific weight is 7.85 kN/m3, is 0.8 1.6 1.2 1 0.8 1.6 1.2 1 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit speed of the wheel is 40 r.p.m. 10 r.p.m. 20 r.p.m. 80 r.p.m. 40 r.p.m. 10 r.p.m. 20 r.p.m. 80 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Braking jet in an impulse turbine is used None of these To bring the runner to rest in a short time To change the direction of runner To break the jet of water None of these To bring the runner to rest in a short time To change the direction of runner To break the jet of water ANSWER DOWNLOAD EXAMIANS APP
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