Related Questions

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
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 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 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
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
The value of stress concentration factor depends upon
A Material and geometry of the part
B Geometry of the part
C Material of the part
D None of these

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