Related Questions

In a regenerative feed heating cycle, the greatest economy is affected
A when steam is extracted from only one suitable point of steam turbine
B when steam is extracted from several places in different stages of steam turbine
C when steam is extracted only from the last stage of steam turbine
D when steam is extracted only from the first stage of steam turbine
In regenerative air preheaters, the heat is transferred
A From a metal wall from one medium to another
B From heating an intermediate material and then heating the air from this material
C By direct mixing
D Heat is transferred by bleeding some gas from furnace
An ideal regenerative cycle is
A Equal to Carnot cycle
B Less than Carnot cycle
C More than Carnot cycle
D Could be anything
Regenerative method of braking is based on that
A Back e.m.f. is less than the applied voltage
B Back e.m.f. is equal to the applied voltage
C Back e.m.f. of rotor is more than the applied voltage
D None of the above
In regenerative cycle feed water is heated by
A exhaust gases
B heaters
C draining steam from the turbine
D all above
Regenerative cycle thermal efficiency
A is always greater than simple Rankine thermal efficiency
B is greater than simple Rankine cycle thermal efficiency only when steam is bled at particu-lar pressure
C is same as simple Rankine cycle thermal efficiency
D is always less than simple Rankine cycle thermal efficiency
The maximum percentage gain in Regenerative feed heating cycle thermal efficiency
A increases with number of feed heaters increasing
B decreases with number of feed heaters increasing
C remains same unaffected by number of feed heaters
D none of the above
In a regenerative feed heating cycle, the optimum value of the fraction of steam extracted for feed heating
A Decreases with increase in Rankine cycle efficiency
B Increases with increase in Rankine cycle efficiency
C Is unaffected by increase in Rankine cycle efficiency
D None of the above
In a regenerative surface condenser
A There is one pump to remove air and condensate
B There are two pumps to remove air and condensate
C There are three pumps to remove air, vapor and condensate
D There is no pump; the condensate gets removed by gravity
Pot furnace which is either regenerative or recupterative, is used in the manufacture of
A Glass
B Stainless steel
C Potteries
D Refractory bricks

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