Slow speed engine
Vertical steam engine
Condensing steam engine
Non-condensing steam engine
C. Condensing steam engine
Simple impulse turbine
Simple reaction turbine
Impulse-reaction turbine
None of these
Steam jet
Centrifugal fan
Chimney
Both (A) and (B)
Carbon, hydrogen, nitrogen, sulphur, moisture
Fixed carbon, ash, volatile matter, moisture
Higher calorific value
Lower calorific value
The draft to be created
Limitation of construction facilities
Control of pollution
Quantity of flue gases to be handled
Steam pressure exceeds the working pressure
Water level in the boiler becomes too low
Both (A) and (B)
None of the above
Steam temperature remains constant
Steam pressure remains constant
Steam enthalpy remains constant
Steam entropy remains constant
The steam is allowed to expand in the nozzle, where it gives a high velocity before it enters the moving blades
The expansion of steam takes place partly in the fixed blades and partly in the moving blades
The steam is expanded from a high pressure to a condenser pressure in one or more nozzles
The pressure and temperature of steam remains constant
Same value
Higher value
Lower value
Lower/higher depending on steam flow
Linearly
Slowly first and then rapidly
Rapidly first and then slowly
Inversely
539 kcal/ kg
539 BTU/ lb
427 kcal/ kg
100 kcal/ kg
Simple reaction turbine
Velocity compounded turbine
Pressure compounded turbine
Pressure-velocity compounded turbine
The critical pressure gives the velocity of steam at the throat equal to the velocity of sound.
The flow in the convergent portion of the nozzle is subsonic.
The flow in the divergent portion of the nozzle is supersonic.
To increase the velocity of steam above sonic velocity (supersonic) by expanding steam below the critical pressure, the divergent portion for the nozzle is not necessary.
Drooping characteristic
Linear characteristic
Rising characteristic
Flat characteristic
As an impulsive force
As a reaction force
Partly as an impulsive force and partly as a reaction force
None of the above
Decreasing initial steam pressure and temperature
Increasing exhaust pressure
Decreasing exhausts pressure
Increasing the expansion ratio
10 to 15 %
15 to 25 %
25 to 40 %
40 to 60 %
The given boiler with the model
The two different boilers of the same make
Two different makes of boilers operating under the same operating conditions
Any type of boilers operating under any conditions
Ratio of thermal efficiency to the Rankine efficiency
Ratio of brake power to the indicated power
Ratio of heat equivalent to indicated power to the energy supplied in steam
Product of thermal efficiency and Rankine efficiency
Blow off cock
Feed check valve
Economiser
Fusible plug
160/3 m/s
320/3 m/s
640/3 m/s
640 m/s
Gravimetric analysis of the flue gases
Volumetric analysis of the flue gases
Mass flow of the flue gases
Measuring smoke density of flue gases
Absolute velocity at the inlet of moving blade is equal to that at the outlet
Relative velocity at the inlet of the moving blade is equal to that at the outlet
Axial velocity at inlet is equal to that at the outlet
Whirl velocity at inlet is equal to that at the outlet
Equal
Half
Double
Four times
Higher calorific value at constant volume
Lower calorific value at constant volume
Higher calorific value at constant pressure
Lower calorific value at constant pressure
Enthalpy
Superheating
Super saturation
Latent heat
Internally fired
Externally fired
Internally as well as externally fired
None of these
47.5 mm, 130 mm
32.5 mm, 180 mm
65.5 mm, 210 mm
24.5 mm, 65 mm
Single rotor impulse turbine
Multi-rotor impulse turbine
Impulse reaction turbine
None of these
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
Indicated power
Brake power
Frictional power
None of these