A. 2-4 m
B. 3-5 m
C. 5-7.5 m
D. 7-9 m
E. 9-11 m
The lenght of Cornish boiler is of the order of _________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. 1 kg
B. 4/3kg
C. 8/3kg
D. 2 kg
E. 16/3 kg
A. producer gas
B. coal gas
C. water gas
D. blast furnace gas
E. coke oven gas
Which of the following gases has the highest calorific value ________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. regeneration
B. reheating of steam
C. both A. and B.
D. cooling of steam
E. none of the above
Efficiency of a thermal cycle increases by ________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. decreasing initial steam pressure and temperature
B. increasing exhaust pressure
C. decreasing exhaust pressure
D. increasing the expansion ratio
E. increasing number of regenerative heaters
Efficiency of rankine cycle can be increased by_________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. C02
B. CO
C. 02
D. N2
E. none of the above
Alkaline pyrogallate is used in Orsat’s apparatus for absorption of _________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. Hygroscopic substances
B. water vapour in air
C. temperature of air
D. pressure of air
E. density measurement
Hygrometery deals with the_________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. lowers the boiling point of a liquid
B. raises the boiling point of a liquid
C. .does not affect the boiling point of a liquid
D. reduces its volume
E. none of the above
The increase in pressure _________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. and its corresponding conversion into dry saturated steam at 100°C and 1.033 kg/cm2
B. and its corresponding conversion into dry steam at desired boiler pressure
C. conversion into steam at atmospheric condition
D. conversion into steam at the same pres-sure at which feed water is supplied
E. none of the above
A. equals that of the surroundings
B. equals 760 mm of mercury
C. equals to atmospheric pressure
D. equals the pressure of water in the container
E. boiling has ^nothing to do with vapour pressure
Water boils when its vapour pressure ___________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers