133) Cavitation will begin when

Pressure at any location reaches pressure equal to the saturated vapour pressure of the liquid

Pressure becomes more than critical pressure

Flow is increased

Pressure is increased

Answer is:

Pressure at any location reaches pressure equal to the saturated vapour pressure of the liquid

OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

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134) A piezometer can not be used for pressure measurement in pipes when

Pressure difference is low

Velocity is high

Fluid in the pipe is a gas

Fluid is highly viscous

Answer is:

Fluid in the pipe is a gas

135) Under thermal and electrical system analogy, charge is considered analogous to

Temperature

Reciprocal temperature

Heat flow

Reciprocal heat flow

Answer is:

Invalid

136) For a closed system, the difference between the heat added to the system and work done by the system is equal to the change in

Enthalpy

Entropy

Temperature

Internal energy

Answer is:

Internal energy

137) A body of weight 100 N falls freely through a distance of 10 m against an atmospheric drag force of 5 N. considering the body as the system, the work interaction is

1000 Nm

1050 Nm

950 Nm

50 Nm

Answer is:

50 Nm

OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

For more MCQ's Click Here

133) Cavitation will begin when

Pressure at any location reaches pressure equal to the saturated vapour pressure of the liquid

OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

Related OFB Chargeman Mechanical Question Paper - 2014 with Answer Key

134) A piezometer can not be used for pressure measurement in pipes when

Fluid in the pipe is a gas

135) Under thermal and electrical system analogy, charge is considered analogous to

Invalid

136) For a closed system, the difference between the heat added to the system and work done by the system is equal to the change in

Internal energy

137) A body of weight 100 N falls freely through a distance of 10 m against an atmospheric drag force of 5 N. considering the body as the system, the work interaction is

50 Nm

OFB Chargeman Mechanical Question Paper - 2014 with Answer Key