500 Best Hydraulics MCQ
Q17). A piezometer opening in pipes measures
a).velocity head
b).static pressure
c).total pressure
d).negative static pressure.
Correct Answer:
static pressure
Explanation:
Q18). An independent mass of a fluid does not posses
a).elevation energy
b).kinetic energy
c).pressure energy
d).none of these.
Correct Answer:
pressure energy
Explanation:
Q19). A short tube mouthpiece will not run full at its outlet if the head under which the orifice works, is
a).less than 12.2 m of the water
b).more than 12.2 m of the water
c).equal of 12.2 m of water
d).none of these.
Correct Answer:
more than 12.2 m of the water
Explanation:
Q20). Hydrostatic pressure on a dam depends upon its
a).length
b).depth
c).shape
d).Both B and C
Correct Answer:
0
Explanation:
Q21). Maximum efficiency of transmission of power through a pipe, is
a).0.25
b).0.333
c).0.5
d).66.67%.
Correct Answer:
66.67%.
Explanation:
Q22). An ideal flow of a liquid obeys
a).Continuity equation
b).Newton’s law of viscosity
c).Newton’s second law of motion
d).dynamic viscosity law,
Correct Answer:
Continuity equation
Explanation:
Q23). Reynold number is the ratio of initial force and
a).viscosity
b).elasticity
c).gravitational force
d).surface tension.
Correct Answer:
viscosity
Explanation:
Q24). When a body is totally or partially immersed in a fluid, it is buoyed up by a force equal to
a).weight of the body
b).weight of the fluid displaced by the body
c).weight of the body and fluild displaced by the body
d).difference of weights of the fluid displaced and that of the body
Correct Answer:
weight of the fluid displaced by the body
Explanation: