sin²α
cos²α
tan²α
cot²α
B. cos²α
More heating surface
Less heating surface
Equal heating surface
Heating surface depends on other parameters
Receiver type compound engine
Tandem type compound engine
Woolf type compound engine
None of these
Water level indicator
Pressure gauge
Safety valve
All of these
Below atmospheric pressure
1 kg/cm²
100 kg/cm²
225.6 kg/cm²
Increases the mean effective pressure
Increases the workdone
Decreases the efficiency of the engine
All of these
Heat transfer takes place across cylinder walls
Work is done
Steam may be wet, dry or superheated after expansion
All of the above
To guide motion of the piston rod and to prevent it from bending
To transfer motion from the piston to the crosshead
To convert heat energy of the steam into mechanical work id) to exhaust steam from the cylinder at proper moment
None of these
Safety valve
Water level indicator
Pressure gauge
Fusible plug
Steam condenser
Steam boiler
Steam preheater
Economiser
Equal to Carnot cycle
Less than Carnot cycle
More than Carnot cycle
Could be anything
To provide reciprocating motion to the slide valve
To convert reciprocating motion of the piston into rotary motion of the crank
To convert rotary motion of the crankshaft into to and fro motion of the valve rod
To provide simple harmonic motion to the D-slide valve
The efficient steam jacketing of the cylinder walls
Superheating the steam supplied to the engine cylinder
Keeping the expansion ratio small in each cylinder
All of the above
4.75 mm
5.47 mm
7.45 mm
47.5 mm
0.17 MN/m²
1.7 MN/m²
17 MN/m²
170 MN/m²
Swept volume to the volume at cut-off
Clearance volume to the swept volume
Volume at cut-off to the swept volume
Swept volume to the clearance volume
79 m/s
188 m/s
450 m/s
900 m/s
The efficiency of steam turbines is greater than steam engines
A flywheel is a must for steam turbine
The turbine blades do not change the direction of steam issuing from the nozzle
The pressure of steam, in reaction turbines, is increased in fixed blades as well as in moving blades
Surface condenser
Jet condenser
Barometric condenser
Evaporative condenser
Heat transfer takes place
Work is done by the expanding steam
Internal energy of steam changes
None of the above
Lowest temperature at which oil will flow under set condition
Storage temperature
Temperature at which fuel is pumped through burners
Temperature at which oil is transported
Cumulative heat drop to the isentropic heat drop
Isentropic heat drop to the heat supplied
Total useful heat drop to the total isentropic heat drop
None of the above
Chimney
Centrifugal fan
Steam jet
None of these
Velocity increases
Velocity decreases
Velocity remains constant
Pressure remains constant
One fourth
Half
One
Two
Efficiency of the boiler
Efficiency of the chimney
Efficiency of the fan
Power of the boiler
Tonnes/hr. of steam
Pressure of steam in kg/cm²
Temperature of steam in °C
All of the above
Increases
Decreases
Remain unaffected
First increases and then decreases
More
Less
Equal
None of these
Maximum
Minimum
Zero
Depends on temperature also
160/3 m/s
320/3 m/s
640/3 m/s
640 m/s