500 Best Hydraulics MCQ
Q209). Flow of water in pipes of diameter more than 3 metres, can be measured by
a).pitot tube
b).venturimeter
c).orifice plate
d).rotameter.
Correct Answer:
rotameter.
Explanation:
Q210). Hydraulic grade line
a).remains above the centre line of conduit
b).remains below the centre line of conduit
c).remains parallel to the centre line of conduit
d).may be above or below the centre line of conduit.
Correct Answer:
may be above or below the centre line of conduit.
Explanation:
Q211). If the Mach number for a fluid flow is less than 1, the flow is
a).sonic
b).supersonic
c).sub-sonic
d).none of these.
Correct Answer:
sub-sonic
Explanation:
Q212). Hydraulic coefficient of an orifice means the coefficient of
a).velocity
b).contraction
c).resistance
d).all the above.
Correct Answer:
all the above.
Explanation:
Q213). In a venturimeter, the divergent cone is kept
a).shorter than convergent cone
b).equal to covergent cone
c).longer than convergent cone
d).none of these.
Correct Answer:
longer than convergent cone
Explanation:
Q214). Specific weight of sea water is more than that of pure water because of
a).dissolved air
b).dissolved salts
c).suspended matter
d).all the above.
Correct Answer:
all the above.
Explanation:
Q215). Energy equation is usually applicable to
a).non-uniform flow
b).turbulent flow
c).laminar flow
d).steady flow.
Correct Answer:
steady flow.
Explanation:
Q216). Poise is the unit of
a).viscosity
b).velocity gradient
c).mass density
d).kinematic viscous.
Correct Answer:
viscosity
Explanation: