A. decreases if the chimney gas temperature increases

C. remains same irrespective of chimney gas temperature

D. may increase or decrease

A. is unaffected by increase in Rankine cycle efficiency

B. decreases with increase in Rankine cycle efficiency

C. none of the above

B. heat the air in the water

C. heat the water

D. erative heating is done to

A. exhaust gases

B. heaters

D. all above

B. human waste

C. wet cow dung

D. wet livestock waste

A. less smoke

C. more draught

D. less chimney gas temperature

A. lift trucks

B. belt conveyor

D. tower cranes

A. to produce draught to accelerate the combustion of fuel

B. to reduce the temperature of the hot gases discharged

C. none of the above

A. there are three pumps to remove air, vapour and condensate

C. there is no pump, the condensate gets removed by gravity

D. there is one pump to remove air and condensate

A. center of coal fields

C. center of maximum load of equipments

A. not predictable

B. less

C. same

B. stage efficiency only

C. exit pressure only

D. all of the above

A. velocity compounded impulse steam turbine

B. pressure compounded impulse steam turbine

C. reaction steam turbine

A. none of the above

C. remains same unaffected by number of feed heaters

D. decreases with number of feed heaters increasing

A. increases from one side to the other side

B. is different

D. decreases from one side to the other side

B. there is enthalpy drop only in fixed blades

C. there is enthalpy drop only in moving blades

D. none of the above

A. same

B. less

D. may be more or less

A. 60

B. 90

C. 80

A. increase the flame length

B. reduce the flame length

D. transport and dry the coal

A. 25 to 30%

B. 40 to 50%

D. 65 to 70%

A. steam and cooling water do not mix

B. cooling water passes through tubes and steam surrounds them

C. steam passes through tubes and cooling water surrounds them

A. 60%

C. 75%

D. 100%

B. all of the above varying with situation

C. steam and cooling water mix to give the condensate

D. steam passes through the cooling tubes and cooling water surrounds them

A. when steam is extracted from only one suitable point of steam turbine

B. when steam is extracted only from the last stage of steam turbine

C. when steam is extracted only from the first stage of steam turbine

A. 100 metres

C. 60 metres

D. 40 metres

A. forced fan

B. only motion of locomotive

D. chimney

A. to condense large volumes of steam to water which may be used again in boiler

B. to maintain pressure below atmospheric to increase work output from the primemover

C. to receive large volumes of steam exhausted from steam prime mover

B. velocity compounded impulse steam turbine

C. pressure velocity compounded steam turbine

D. reaction steam turbine

A. 77%

C. 79%

D. 18%

A. heat

B. mechanical

D. sound

A. aluminium

B. cast iron

D. copper

A. 700 W/m2

B. 800 W/m2

D. 2 kW/m2

A. 10 to 12%

C. 1 to 5%

A. rise in absolute pressure maintained in condenser

B. rise in temperature of condensed steam

C. no change in absolute pressure in the condenser

A. carrying coal in horizontal direction

B. carrying coal in any direction

B. Nozzle control governing

C. By-pass governing

D. Throttle governing

B. the ratio of outlet pressure to inlet pressure of nozzle

C. the ratio of outlet pressure to inlet pressure only when mass flow rate per unit area is minimum

D. the ratio of inlet pressure to outlet pressure of nozzle

A. none of the above

B. non-condensing type

A. induced fan

B. induced and forced fan

D. forced fan

A. Boiler efficiency x turbine efficiency x generator efficiency

B. Rankine cycle efficiency

C. Carnot cycle efficiency

B. reaction turbines

C. none of the above

D. impulse turbines

A. solar, wind and biomass

B. none of the above

C. wood, animal wastes and agriculture wastes

B. change of internal energy between inlet and outlet

C. change of entropy between inlet and outlet

D. change of temperature between inlet and outlet

A. increase the performance of the condenser

C. increase efficiency of the turbine

A. 80%

C. 20%

D. 40%

A. less than diesel power station

B. equal to diesel power station

A. to reduce the boiler pressure

B. to increase the steam temperature

D. none of the above

B. reduce loss of heat

C. utilise heat of flue gases

D. improve condenser performance

A. 75100 kg/m per hour

C. 5075 kg/m per hour

D. 100150 kg/m per hour

A. increases with increase in outside air temperature

B. may increase or decrease with increase in outside air temperature

D. remains the same irrespective of outside air temperature