The value of reheat factor normally varies from

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

The value of the reheat factor varies from ____________

A

1.08 to 1.10

B

1.2 to 1.6

C

1.6 to 2

D

1.02 to 1.06

Normally, the length to diameter ratio of rotary dryers varies form 4 to 10 and for its economic operation, the number of transfer units (NTU) for such dryers varies from

A

1.5-2.5

B

3.5-5.5

C

7.5-10.0

D

10-15

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 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

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

Reheat factor is the ratio of

A

isentropic heat drop to useful heat drop

B

adiabatic heat drop to isentropic heat drop

C

cumulative actual enthalpy drop for the stages to total is isentropic enthalpy heat drop

D

none 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 reheat factor depends upon

A

Initial pressure and superheat

B

Exit pressure

C

Turbine stage efficiency

D

All of these

Which of the following statements regarding reheat factor is TRUE?

A

It is always less than 1

B

It is always greater than 1

C

It is always equal to or less than 1

D

It might be less than one

The value of reheat factor normally varies from

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