Hydraulics And Fluid Mechanics MCQ Questions & Answers | Mechanical Engineering

A. $$\frac{{{\text{wH}}}}{2}$$

B. $${\text{wH}}$$

C. $$\frac{{{\text{w}}{{\text{H}}^2}}}{2}$$

D. $$\frac{{{\text{w}}{{\text{H}}^2}}}{4}$$

A. Causes noise and vibration of various parts

B. Reduces the discharge of a turbine

C. Causes sudden drop in power output and efficiency

D. All of the above

A. Inversely proportional to $${{\text{H}}^{\frac{3}{2}}}$$

B. Directly proportional to $${{\text{H}}^{\frac{3}{2}}}$$

C. Inversely proportional to $${{\text{H}}^{\frac{5}{2}}}$$

D. Directly proportional to $${{\text{H}}^{\frac{5}{2}}}$$

A. Same

B. Higher

C. Lower

D. Lower/higher depending on weight of body

A. Cohesion pressure is negligible

B. Cohesion pressure is decreased

C. Cohesion pressure is increased

D. There is no cohesion pressure

A. Velocity of liquid

B. Pressure of liquid

C. Area of mouthpiece

D. Length of mouthpiece

A. Less than

B. Same as

C. More than

D. None of these

A. Vacuum pressure

B. Gauge pressure

C. Absolute pressure

D. Atmospheric pressure

A. Coincides with its centre of gravity

B. Lies above its centre of gravity

C. Lies below its centre of gravity

D. Lies between the centre of buoyancy and centre of gravity

A. Notch

B. Weir

C. Mouthpiece

D. Nozzle