Related Questions

A _________ in a boiler is used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit.
A Blow off cock
B Fusible plug
C Stop valve
D Safety valve
On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in
A Greater degree of separation with a fixed number of trays
B Increased reboiler load
C Increased reflux ratio
D None of these
The process of draining steam from the turbine, at certain points during its expansion and using this steam for heating the feed water in feed water heaters and then supplying it to the boiler is known as
A Regenerative heating
B Reheating of steam
C Bleeding
D None of these
The delivery pressure of boiler feed water pump compared to the boiler steam pressure is
A Same
B Slightly less
C Slightly more
D Much more
Soluble silica present in boiler feed water can be removed by
A Coagulation
B Filtration
C Anion exchanger
D Preheating it
A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides
A Higher economy
B Lower capacity
C Both A & B
D Lower economy
When the circulation of water, in a boiler, is by convection currents which are set up during the heating of water, then the boiler is known as
A Internally fired boiler
B Externally fired boiler
C Natural circulation boiler
D Forced circulation boiler
Steam condensate is recovered by steam traps and recycled for use as boiler feed water, because of its low
A Hardness
B Dissolved soilds content
C Suspended solids content
D All of the above
A bag of chicken feed can feed 18 chickens for 54 days. For how many days will it feed 12 chickens?
A 81
B 36
C 72
D 40
Fqra cold viscous feed, backward feed gives __________ than forward feed.
A A higher capacity
B A lower capacity
C Lower economy
D None of these

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