A. reduce the flame length
B. increase the flame length
C. transport and dry the coal
D. provide air around burners for get¬ting optimum combustion
Related Mcqs:
- Secondary air is the air used to______________?
A. reduce the flame length
B. increase the flame length
C. transport and dry the coal
D. provide air round the burners for getting optimum combustion - Binary’vapour cycles are used to_____________?
A. increase the performance of the condenser
B. increase the efficiency of the plant
C. increase efficiency of the turbine - Deaerative heating is done to_____________?
Deaerative heating is done to
A. heat the water
B. heat the air in the water
C. remove dissolved gases in the water - The percentage O2 by Weight in atmospheric air is____________?
A. 18%
B. 23%
C. 77%
D. 79% - The percentage 02 by volume in atmosphere air is____________?
A. 21%
B. 23%
C. 77%
D. 79% - Edward’s air pump____________?
A. removes air and also vapour from condenser
B. removes only air from condenser
C. removes only un-condensed vapour from condenser
D. removes air alongwith vapour and also the condensed water from condenser - In a surface condenser if air is removed, there is___________?
A. fall in absolute pressure maintained in condenser
B. rise in absolute pressure maintained in condenser
C. no change in absolute pressure in the condenser
D. rise in temperature of condensed steam - The amount of air which is supplied for complete combustion is called___________?
A. primary air
B. secondary air
C. tertiary air - Rateau steam turbine is______________?
A. reaction steam turbine
B. velocity compounded impulse steam turbine
C. pressure compounded impulse steam turbine
D. pressure velocity compounded steam turbine - A gas turbine basically work on
A. Carnot cycle
B. Rankin cycle
C. Brayton cycle
D. Dual cycle
