A. more
B. less
C. equal
D. may be more or less depending on capacity of reheater
E. none of the above
Related Mcqs:
- 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 - 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 - If partial pressure of air and steam be pa and ps respectively in a condenser, then according to Dalton’s law, the pressure in condenser is equal to__________________?
A. Ps-Pa
B. pa-ps
C. Pa+P
D. non of these - The high pressure boiler is oiie producing steam at a pressure more than_________________?
A. atmospheric pressure
B. 5 kg/cm2
C. 10 kg/cm2
D. 40 kg/cm2
E. 75-80 kg/cm2 - 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% - If a steam sample is nearly in dry condition, then its dryness fraction can be most accurately determined by___________________?
A. throttling calorimeter
B. separating calorimeter
C. combined separating and throttling calorimeter
D. bucket calorimeter
E. none of the above - The condition of steam in boiler drum is always ___________________?
A. dry
B. wet
C. saturated
D. supersaturated
E. superheated - Steam in water tube boiler as compared to fire tube boiler_________________?
A. can be raised rapidly
B. is raisd at slower rate
C. is raised at same rate
D. could be raised at fast/slow rate depending on design
E. none of the above is true
