- (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, vapour and condensate
- (D) there is no pump, the condensate gets removed by gravity
Electrical Engineering Mcqs
- (A) to maintain pressure below atmospheric to increase work output from the primemover
- (B) to receive large volumes of steam exhausted from steam prime mover
- (C) to condense large volumes of steam to water which may be used again in boiler
- (D) all of the above
- (A) removes air and also vapour from condenser
- (B) removes only air from condenser
- (C) removes only un-condensed vapour from condenser
- (D) removes air alongwith vapour and also the condensed water from condenser
- (A) increases the quantity of vapour extracted along with air
- (B) reduces the quantity of vapour extracted along with air
- (C) does not affect vapour quantity extracted but reduces pump capacity of air extraction pump
- (D) none of the above
- (A) fall in absolute pressure maintained in condenser
- (B) rise in absolute pressure maintained in condenser
- (C) no change in absolute pressure in the condenser
- (D) rise in temperature of condensed steam
- (A) steam and cooling water mix to give the condensate
- (B) cooling water passes through the tubes and steam surrounds them
- (C) steam passes through the cooling tubes and cooling water surrounds them
- (D) all of the above varying with situation
- (A) cooling water passes through tubes and steam surrounds them
- (B) steam passes through tubes and cooling water surrounds them
- (C) steam and cooling water mix
- (D) steam and cooling water do not mix
- (A) higher
- (B) lower
- (C) same as long as initial pressure and temperature is unchanged
- (D) none of the above
- (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
- (A) Throttle governing
- (B) Nozzle control governing
- (C) By-pass governing
- (D) all of the above
