Hydraulics and Fluid Mechanics Mcqs

A. Friction loss and flow

B. Length and diameter

C. Flow and length

D. Friction factor and diameter

A. Maximum

B. Minimum

C. Zero

D. Non-zero finite

A. Local atmospheric pressure depends upon elevation of locality only

B. Standard atmospheric pressure is the mean local atmospheric pressure a* sea level

C. Local atmospheric pressure is always below standard atmospheric pressure

D. A barometer reads the difference be-tween local and standard atmospheric pressure

A. The center of buoyancy is located at the center of gravity of the displaced liquid

B. For stability of a submerged body, the center of gravity of body must lie directly below the center of buoyancy

C. If e.g. and center of buoyancy coincide, the submerged body must lie at neutral equilibrium for all positions

D. For stability of floating cylinders or spheres, the e.g. of body must lie below the center of buoyancy

E. All floating bodies are stable

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

A. Fluids are capable of flowing

B. Fluids conform to the shape of the con-taining vessels

C. When in equilibrium, fluids cannot sustain tangential forces

D. When in equilibrium, fluids can sustain shear forces

A. Viscosity of a fluid is that property which determines the amount of its resistance to a shearing force

B. Viscosity is due primarily to interaction between fluid molecules

C. Viscosity of liquids decreases with in-crease in temperature

D. Viscosity of liquids is appreciably affected by change in pressure