Reheat factor is the ratio of

The reheat factor is the ratio of the

A

Cumulative heat drop to the isentropic heat drop

B

Isentropic heat drop to the heat supplied

C

Total useful heat drop to the total isentropic heat drop

D

None of the above

The value of the reheat factor varies from

A

1.02 to 1.06

B

1.08 to 1.10

C

1.2 to 1.6

D

1.6 to 2

Reheat factor in steam turbines depends on

A

exit pressure only

B

stage efficiency only

C

initial pressures and temperature only

D

all of the above

In steam turbines the reheat factor

A

increases with the increase in number of stages

B

decreases with the increase in number of stages

C

remains same irrespective of number of stages

D

none of the above

The value of reheat factor normally varies from

A

0.5 to 0.6

B

0.9 to 0.95

C

1.02 to 1.06

D

1.2 to 1.6

The value of the reheat factor is of the order of

A

0.8 to 1.0

B

1.0 to 1.05

C

1.1 to 1.5

D

above 1.5

The reheat factor depends upon

A

Initial pressure and superheat

B

Exit pressure

C

Turbine stage efficiency

D

All of these

Reheat cycle in steam power plant is used to

A

utilise heat of flue gases

B

increase thermal efficiency

C

improve condenser performance

D

reduce loss of heat

The pressure of reheat steam after passing through reheater compared to inlet condition is

A

More

B

Less

C

Equal

D

May be more or less depending on capacity of reheater

If Q is load factor, S is shape factor and F is factor of safety in elastic design, the following:

A

Q = S + F

B

Q = S - F

C

Q = F - S

D

Q = S × F

Reheat factor is the ratio of

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