AMVI Main 2017

A. High head are required on mains despite fluctuation in discharge

B. Operating speeds are much high

C. Constant supplies are required of large quantity

D. None of above

A. Pressure energy into kinetic energy

B. Velocity head into potential head

C. Potential head into pressure head 

D. Kinetic energy into pressure energy

A. n

B. 2n

C.

D. None of above

A. 0.1 to 0.14

B. 0.15 to 0.30

C. 0.35 to 0.5

D. 0.6 to 0.9

A.

B.

C.

D. None of above

A. equal to the jet velocity

B. 75% of the jet velocity

C. 50% of the jet velocity

D. 33% of the jet velocity

A. accelerating flow

B. decelerated flow

C. either of above

D. none of the above

A. Francis

B. Kaplan

C. Pelton wheel

D. Thomson

A. Hydraulic ram

B. Hydraulic accumulator

C. Hydraulic intensifier

D. Combination of all above

A. pressure control valve

B. direction control valve

C. flow control valve

D. none of above

A. Vapour compression

B. Steam jet

C. Gas refrigeration

D. Vapour absorption

A. Specific humidity

B. Adiabatic saturation temperature 

C. Relative humidity

D. Enthalpy deviations

A. mass of water vapour to mass of mixture

B. mass of air to mass of mixture at same DBT

C. mass of water vapour to max possible mass of water vapour in mixture at same DBT

D. none of above

A. positive pressure in evaporator 

B. high latent heat of vaporisation 

C. high thermal conductivity

D. high boiling temperature at atmospheric pressure

A. Thermal capacity of heat pump and refrigerating machine will be same. 

B. Thermal capacity of refrigerating machine will be higher than heat pump.

C. Heat pump will have higher thermal capacity than refrigerating machine.

D. Thermal capacity relationship can not be predicted.

A. CCL₂F₂

B. CCL₃F

C. CHCLF₂

D. CHCL₂F

A. cool space volume

B. heat transfer rate alone

C. color of front panel

D. none of the above

A. DBT, relative humidity, air purity and motion

B. DBT, air purity

C. Only DBT

D. DBT and humidity

A. 20%

B. 50%

C. zero%

D. 80%

A. electricity only

B. water energy only

C. low grade heat energy

D. non conventional energy only