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
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
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
The amount of water evaporated in kg per kg of fuel burnt in a boiler is called the __________ of a boiler.
A Evaporative capacity
B Evaporation efficiency
C Thermal efficiency
D Steam load
Vapor velocity in a distillation column for non-foaming mixture is in the range of __________ times the flooding velocity.
A 0.1 to 0.3
B 0.6 to 0.7
C 0.85 to 0.95
D 1.5 to 2
The suitable evaporator for concentration of foaming liquids is a __________ evaporator.
A Long tube
B Short tube
C Vacuum
D Falling film
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

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