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Hydraulic efficiency of a hydraulic turbine is the ratio of the :
(A) Runner power to water power (B) Shaft power to the water power

(C) Shaft power to the runner power (D) Water power to the shaft power

The function of governor in a hydraulic turbine is to:
(A) Maintain the discharge constant under all conditions
(B) Maintain the power constant under all conditions
(C) Maintain the speed constant under all conditions

(D) Maintain the head constant under all conditions

Slip of reciprocating pump becomes negative when :
(A) Theoretical discharge is equal to actual discharge
(B) Actual discharge is more than theoretical discharge
(C) Theoretical discharge is more than actual discharge

(D) Pump is running at high head

Cavitation in centrifugal pumps can be reduced by :
(A) Reducing the suction head (B) Throttling the discharge
(C) Increasing the flow velocity (D) Reducing the discharge

A single acting reciprocating pump having single cylinder area of 0.3 m? and stroke length
0.1 m running at a speed of 180 rpm. Theoretical discharge of the pump will be :

(^) 0.21 m/s (B) 0.09 m/s
(C) 0.54 m/s (D) 0.19 m/s

In the resistance thermometer the charge in resistance of a metal wire due to its changes in
temperature :

(^) Physical Property (B) Thermometric Property
(C) Chemical Property (D) Thermal Property

As mixing is also a irreversible process it also decreases availability and increases
unavailability of the system. The loss of availability energy is always associated with never
increase :

(^) Enthalpy (B) Entropy
(C) Thermal Resistance (D) Physical Property

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