0.1
0.3
0.5
0.8
C. 0.5
Equal to
Lower than
Higher than
None of these
Drooping characteristic
Linear characteristic
Rising characteristic
Flat characteristic
Lancashire boiler
Babcock and Wilcox boiler
Yarrow boiler
None of these
Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required
Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler
Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit
Increase the temperature of saturated steam without raising its pressure
Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum
Water is supplied in drum and through down comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam
Feed pump is employed to supplement natural circulation in water wall type furnace
Water is converted into steam in one pass without any recirculation
Various chemical constituents, carbon, hydrogen, oxygen etc, plus ash as percents by volume
Various chemical constituents, carbon, hydrogen, oxygen, etc, plus ash as percents by weight
Fuel constituents as percents by volume of moisture, volatile, fixed carbon and ash
Fuel constituents as percents by weight of moisture, volatile, fixed carbon and ash
Heated sufficiently
Burnt in excess air
Heated to its ignition point
Burnt as powder
LaMont boiler
Lancashire boiler
Velox boiler
Benson boiler
To convert reciprocating motion of the piston into rotary motion
To convert rotary motion of the crankshaft into to and fro motion of the valve rod
To prevent fluctuation of speed
To keep the engine speed uniform at all load conditions
One fourth
Half
One
Two
Horizontal
Vertical
Inclined
None of these
1000 J
360 kJ
3600 kJ
3600 kW/sec
More
Less
Equal
May be more or less depending on capacity of reheater
Internally fired
Externally fired
Internally as well as externally fired
None of these
Increases
Decreases
Remain unaffected
First increases and then decreases
Blow off cock
Feed check valve
Economiser
Fusible plug
Increases
Decreases
Remain unaffected
First increases and then decreases
Water passes through the tubes which are surrounded by flames and hot gases
The flames and hot gases pass through the tubes which are surrounded by water
Forced circulation takes place
None of these
Horizontal fire tube boiler
Horizontal water tube boiler
Vertical water tube boiler
Vertical fire tube boiler
Pulverising coal in inert atmosphere
Heating wood in a limited supply of air at temperatures below 300°C
Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
Binding the pulverised coal into briquettes
Heating the oil in the settling tanks
Cooling the oil in the settling tanks
Burning the oil
Suspension
Slow speed engine
Vertical steam engine
Condensing steam engine
Non-condensing steam engine
Lamont boiler
Benson boiler
Loeffler boiler
All of these
Multi tubular
Horizontal
Internally fired
All of the above
Same
Less
More
None of these
Economiser
Fusible plug
Superheater
Stop valve
Internally fired boiler
Externally fired boiler
Natural circulation boiler
Forced circulation boiler
Non-coking bituminous coal
Brown coal
Pulverised coal
Coking bituminous coal
(p₂/p₁) = [2/(n - 1)] n/(n + 1)
(p₂/p₁) = [2/(n + 1)] n/(n-1)
(p₂/p₁) = [(n - 1)/2] n + (1/n)
(p₂/p₁) = [(n + 1)/2] n - (1/n)
Non-coking bituminous coal
Brown coal
Peat
None of the above