Q1. High specific speed of turbine implies it is
(A) propeller turbine
(B) Francis turbine
(C) impulse turbine
(D) any one of the above

Q2. Medium specific speea of turbine implies it is
(A) propeller turbine
(B) Francis turbine
(C) impulse turbine
(D) any one of the above

Q3. The maximum number of jets generally employed in impulse turbine without jet interference is
(A) 4
(B) 6
(C) 8
(D) 12

Q4. Runaway speed of a hydraulic turbine is
(A) full load speed
(B) the speed at which turbine runner will be damaged
(C) the speed if the turbine runner is allowed to revolve freely without load and with the wicket gates wide open
(D) the speed corresponding to maximum overload permissible

Q5. Any change in load is adjusted by adjusting following parameter on turbine
(A) absolute velocity
(B) blade velocity
(C) flow
(D) relative velocity of flow at inlet

Q6. Low specific speed of turbine implies it is
(A) propeller turbine
(B) Francis turbine
(C) impulse turbine
(D) any one of the above

Q7. Indicator diagram of a reciprocating pump is a graph between
(A) flow vs swept volume
(B) pressure in cylinder vs swept volume
(C) flow vs speed
(D) pressure vs speed

Q8. High specific speed of a pump implies it is
(A) centrifugal pump
(B) mixed flow pump
(C) axial flow pump
(D) any one of the above

Q9. Medium specific speed of a pump implies it is
(A) centrifugal pump
(B) mixed flow pump
(C) axial flow pump
(D) any one of the above

Q10. For very high discharge at low pressure such as for flood control and irrigation applications, following type of pump is preferred
(A) centrifugal
(B) axial flow
(C) reciprocating
(D) mixed flow

Q11. Motion of a liquid in a volute casing of a centrifugal pump is an example of
(A) rotational flow
(B) radial
(C) forced spiral vortex flow
(D) spiral vortex flow

Q12. In centrifugal pumps, maximum efficiency is obtained when the blades are
(A) straight
(B) bent forward
(C) bent backward
(D) radial

Q13. For small discharge at high pressure, following pump is preferred
(A) centrifugal
(B) axial flow
(C) mixed flow
(D) reciprocating

Q14. In a centrifugal pump, the liquid enters the pump
(A) at the top
(B) at the bottom
(C) at the center
(D) from sides

Q15. The optimum value of vane exit angle for a centrifugal pump impeller is
(A) 10-15°
(B) 20-25°
(C) 30-40°
(D) 50-60°

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