Category: Steam Boilers, Engines, Nozzles and Turbines

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. 15%
B. 20%
C. 30%
D. 45%
E. 60%.

A. boil
B. flash i.e. get converted into steam
C. remain as it was
D. cool down
E. none of the above

A. better burning
B. more calorific value
C. less radiation loss
D. medium sized units
E. stoker fired boilers

A. babcock and wilcox
B. locomotive
C. lancashire
D. cochran
E. comish

A. solid and vapour phases are in equi-librium
B. solid and liquid phases are in equilibrium
C. liquid and vapour phases are in equilibrium
D. solid, liquid and vapour phases are in equilibrium
E. none of the above

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

A. 30 MW
B. 60 MW
C. 100 MW
D. 210 MW
E. 500 MW

A. regulate flow of boiler water
B. check level of water in boiler drum
C. recirculate unwanted feed water
D. allow high pressure feed water to flow to drum and not allow reverse flow to take place
E. none of the above

A. linearly
B. rapidly first and then slowly
C. slowly first and then rapidly
D. inversely
E. none of the above