Q.1
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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