A. constant volume
B. constant temperature
C. constant pressure
D. constant entropy
E. constant enthaply
Superheating of steam is done at_________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. air present in atmosphere at NTP conditions
B. air required for complete combustion of fuel with no excess air
C. air required for optimum combustion so as to have reasonable excess air
D. air required to convert CO into C02
E. air required to form an explosive mixture
Stoichiometric quantity of air is the___________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. 0.1 to 0.2 kg
B. 0.2 to 0.4 kg
C. 0.6 to 0.8 kg
D. 1.0 to 1.5 kg
E. 1.5 to 2 kg
A. linearly
B. slowly first and then rapidly
C. rapidly first and then slowly
D. inversely
E. none of the above
The specific volume of steam with increase in pressure decreases_____________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. Ps-Pa
B. pa-ps
C. Pa+P
D. non of these
A. enthalpy
B. superheating
C. supersaturation
D. latent heat
E. super tempering
Heating of dry steam above saturation temperature is known as_____________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. pulverising coal in inert atmosphere
B. heating wood in a limited supply of air at temperatures below 300°C
C. strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
D. binding the pulverised coal into brick-ettes
E. enriching carbon in the coal
Carbonation of coal is the process of________________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. less
B. more
C. equal
D. may be less or more depending on temperature
E. unpredictable
A. 373°K
B. 273.16°K
C. 303°K
D. 0°K.
E. 300°K
