A. volume
B. pressure
C. entropy
D. enthalpy
E. none of the above
Related Mcqs:
- Heating of dry steam above saturation temperature is known as_____________________?
A. enthalpy
B. superheating
C. supersaturation
D. latent heat
E. super tempering - One kg of steam sample contains 0.8 kg dry steam; it’s dryness fraction is__________________?
A. 0.2
B. 0.8
C. 1.0
D. 0.6
E. 0.5 - In an experiment to determine dryness fraction of steam, the mass of water separated was 1.2 kg in 15 mts and the mass of steam passed out in same time was 4.8 kg. Dryness fraction is__________________?
A. 40%
B. 25%
C. 50%
D. 80%
E. 90% - Expanding steam to a very low pressure (high vacuum) in steam engines is _________________?
A. desirable
B. economical
C. essential
D. optional
E. uneconomical - Vacuum for reciprocating steam engines compared to steam turbines is__________________?
A. more
B. equal
C. less
D. could be more or less depending on the size of plant
E. none of the above - Reheating of steam under ideal conditions takes place at constant __________________?
A. entropy
B. enthaply
C. pressure
D. temperature
E. all of the above - The saturation temperature of steam with increase in pressure increases____________________?
A. linearly
B. rapidly first and then slowly
C. slowly first and then rapidly
D. inversely
E. none of the above - The steam temperature with increase in load in case of a boiler fitted with radiation super heater________________?
A. increases
B. decreases
C. remains unaffected
D. first increases and then decreases
E. unpredictable - Gardually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication of__________________?
A. higher effectiveness of boiler
B. high calorific value coal being burnt
C. fouling of heat transfer surfaces
D. raising of steam temperature
E. leakage of air - A wet vapour can be completely specified by__________________?
A. pressure only
B. temperature only
C. dryness fraction only
D. specific volume only
E. pressure and dryness fraction
