The draft to be created
Limitation of construction facilities
Control of pollution
Quantity of flue gases to be handled
C. Control of pollution
Locomotive boiler
Babcock and Wilcox boiler
Stirling boiler
All of the above
Less efficient and less economical
Less efficient and more economical
More efficient and less economical
More efficient and more economical
High pressure and a low velocity
High pressure and a high velocity
Low pressure and a low velocity
Low pressure and a high velocity
Increases
Decreases
Remain unaffected
First increases and then decreases
The power required and working pressure
The geographical position of the power house
The fuel and water available
All of the above
0.5 to 10 MN/m²
1 to 15 MN/m²
2.5 to 15 MN/m²
3.5 to 20 MN/m²
1 to 1.25m
1 to 1.75 m
2 to 4 m
1.75 to 2.75 m.
Degree of super-saturation
Degree of superheat
Degree of under-cooling
None of these
Provide air around burners for obtaining optimum combustion
Transport and dry the coal
Convert CO (formed in lower zone of furnace) into CO₂ at higher zone
Air delivered by forced draft fan
Increases
Decreases
Remain same
None of these
Pressure drop across the rotor
Change in axial velocity
Both (A) and (B)
None of these
kg of steam produced
Steam pressure produced
kg of fuel fired
kg of steam produced per kg of fuel fifed
Steam temperature remains constant
Steam pressure remains constant
Steam enthalpy remains constant
Steam entropy remains constant
Essentially an isentropic process
Non-heat transfer process
Reversible process
Constant temperature process
Increases the workdone through the turbine
Increases the efficiency of the turbine
Reduces wear on the blades
All of these
Horizontal
Vertical
Inclined
None of these
Blow off cock
Feed check valve
Steam stop valve
None of these
Non-coking bituminous coal
Brown coal
Pulverised coal
Coking bituminous coal
Induced steam jet draught
Chimney draught
Forced steam jet draught
None of these
V = 44.72 hd K
V = 44.72 K hd
V = 44.72 K hd
V = 44.72 K hd
21 %
23 %
30 %
40 %
Increased work output per unit mass of steam
Decreased work output per unit mass of steam
Increased thermal efficiency
Decreased work output per unit mass of steam as well as increased thermal efficiency
High calorific value
Produce minimum smoke and gases
Ease in storing
High ignition point
One fourth
Half
One
Two
Diverge from left to right
Diverge from right to left
Are equally spaced throughout
First rise up and then fall
Gravimetric analysis of the flue gases
Volumetric analysis of the flue gases
Mass flow of the flue gases
Measuring smoke density of flue gases
Cornish boiler is a water tube boiler whereas Lancashire boiler is a fire tube boiler
Cornish boiler is a fire tube boiler whereas Lancashire boiler is a water tube boiler
Cornish boiler has one flue tube whereas Lancashire boiler has two flue tubes
Cornish boiler has two flue tubes whereas Lancashire boiler has one flue tube
Convection
Radiation
Conduction
Radiation and conduction
Zero
One
Two
Four
0.2
0.8
1.0
0.6