A metal with specific gravity of 'a' floating in a fluid of same specific gravity 'a' will
Sink to bottom
Float over fluid
Partly immersed
Be fully immersed with top surface at fluid surface
Q.2.
Impulse turbine is generally fitted
At the level of tail race
Little above the tail race
Slightly below the tail race
About 2.5 m above the tail race to avoid cavitations
Q.3.
Which of the following pump is successfully used for lifting water from deep wells?
Centrifugal pump
Reciprocating pump
Jet pump
Air lift pump
Q.4.
The maximum number of jets, generally, employed in an impulse turbine without jet interference are
two
four
six
eight
Q.5.
In a reciprocating pump, air vessels are fitted to the suction pipe and delivery pipe close to the cylinder of the pump.
True
False
Q.6.
Which place in hydraulic turbine is most susceptible for cavitations?
Inlet of draft rube
Blade inlet
Guide blade
Penstock
Q.7.
When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as
Steady flow
Turbulent flow
Vortex flow
Uniform flow
Q.8.
Meta-centric height is given as the distance between
The center of gravity of the body and the metacenter
The center of gravity of the body and the center of buoyancy
The center of gravity of the body and the center of pressure
Center of buoyancy and metacenter
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