Surface condenser
Jet condenser
Barometric condenser
Evaporative condenser
A. Surface condenser
Frictional losses
It is not possible to achieve 0°K temperature
Leakage
Non availability of ideal substance
0.1
0.3
0.5
0.8
Blow off cock
Fusible plug
Superheater
Stop valve
To give maximum space and strength
To withstand the pressure of steam inside the boiler
Both (A) and (B)
None of the above
40 %
25 %
50 %
80 %
From a metal wall from one medium to another
From heating an intermediate material and then heating the air from this material
By direct mixing
Heat is transferred by bleeding some gas from furnace
More
Equal
Less
Could be more or less depending on the size of plant
Side by side and each cylinder has common piston, connecting rod and crank
Side by side and each cylinder has separate piston, connecting rod and crank
At 90° and each cylinder has common piston, connecting rod and crank
At 90° and each cylinder has separate piston, connecting rod and crank
Regulate flow of boiler water
Check level of water in boiler drum
Recirculate unwanted feed water
Allow high pressure feed water to flow to drum and not allow reverse flow to take place
There is no pressure drop due to condensation
Steam is admitted at boiler pressure and exhausted at condenser pressure
The expansion (or compression) of the steam is hyperbolic
All of the above
Simple reaction turbine
Velocity compounded turbine
Pressure compounded turbine
Pressure-velocity compounded turbine
Condenser
Condensate pump
Air extraction pump
All of these
Below atmospheric pressure
1 kg/cm²
100 kg/cm²
225.6 kg/cm²
56 %
63 %
74 %
78 %
Linearly
Rapidly first and then slowly
Slowly first and then rapidly
Inversely
0.5 to 10 MN/m²
1 to 15 MN/m²
2.5 to 15 MN/m²
3.5 to 20 MN/m²
Increases
Decreases
Has no effect on
None of these
Inlet and throat
Inlet and outlet
Throat and exit
All of these
Work done during the Rankine cycle
Work done during compression
Work done during adiabatic expansion
Change in enthalpy
30 MW
60 MW
100 MW
500 MW
Equal to the velocity of sound
Less than the velocity of sound
More than the velocity of sound
None of these
Increases the mean effective pressure
Increases the workdone
Decreases the efficiency of the engine
All of these
Decreasing initial steam pressure and temperature
Increasing exhaust pressure
Decreasing exhausts pressure
Increasing the expansion ratio
Lancashire boiler
Locomotive boiler
Babcock and Wilcox boiler
Benson boiler
9.81 Joules
102 Joules
427 Joules
None of these
Isothermal process
Isentropic process
Throttling process
Free expansion process
Surface condenser
Jet condenser
Barometric condenser
Evaporative condenser
I.P. = a × m + b
m = a + b × I.P.
I.P. = b × m + a
m = (b/I.P.) - a
Equal to
Less than
Higher than
None of these
Workdone on the blades to the energy supplied to the blades
Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam
Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam
None of the above