Category: Steam Boilers, Engines, Nozzles and Turbines

A. very low pressure
B. atmospheric pressures
C. medium pressures
D. very high pressures
E. none of the above

A. wet
B. superheated
C. remain dry satruated
D. dry
E. none of the above

A. 1 tp 1.25m
B. 1 to 1.75 m
C. 2 to 4 m
D. 1.75 to 2.75 m
E. 2.25 to 4.5 m

A. maximum
B. minimum
C. zero
D. depends on temperature also
E. none of the above

A. desirable
B. economical
C. essential
D. optional
E. uneconomical

A. one-half
B. one-third
C. one-fourth
D. one-fifth
E. two-fifth

A. various chemical constituents, carbon, hydrogen, oxygen etc, plus ash as per-cents by volume
B. various chemical constituents, carbon, hydrogen, oxygen, etc, plus ash as per-cents by weight
C. fuel constituents as percents by volume of moisture, volatile, fixed carbon and ash
D. fuel constituents as percents by weight of moisture, volatile, fixed carbon and ash
E. moisture and ash free heating value

A. 100°C
B. above dew-point temperature of flue gases
C. below dew-point temperature of flue gases
D. less than wet bulb temperature of flue gases
E. above wet bulb temperature of flue gases

A. heat transfer takes place across cylinder walls
B. work is done
C. steam may be wet, dry or superheated after expansion
D. all of the above
E. none of the above

A. it has heating value
B. it helps in electrostatic precipitation of ash in flue-gases
C. it leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low
D. it erodes furnace walls
E. none of the above