Power System - I (3140914) MCQs

MCQs of Conventional Generation, Load Curves and Tariffs

Showing 121 to 130 out of 425 Questions
10 11 12 13 14 15
121.
In a regenerative surface condenser
(a) There is no pump to remove condensate and the condensate gets removed by gravity
(b) There is only one pump for removing air and condensate
(c) There are two pumps for removing air and condensate
(d) There are three pumps to remove air, condensate and vapour
Answer:

Option (c)

122.
In a surface condenser, on removal of air
(a) Absolute pressure of condenser is reduced
(b) Absolute pressure of condenser is increased
(c) Absolute pressure of condenser remains unaffected
(d) Temperature of condensed steam is increased
Answer:

Option (a)

123.
The purpose of the boiler feed pump is to
(a) Pump hot air into the boiler
(b) Pump pulverized coal into the boiler
(c) Pump out steam from the boiler
(d) Pump water into the boiler
Answer:

Option (d)

124.
The function of air pumps in a condenser is to
(a) Remove water
(b) Air leaking into the condenser and maintain vacuum
(c) Maintain atmospheric pressure in the condenser
(d) Both (a) and (b)
Answer:

Option (b)

125.
Wet air pump is to remove
(a) Condensate only
(b) Air only
(c) Both air and condensate
(d) Vapour from the condenser
Answer:

Option (c)

126.
In a steam power plant cooling towers are used for
(a) Cooling condensate outlet water
(b) Cooling exhaust steam
(c) Cooling feed water
(d) All of above
Answer:

Option (a)

127.
Spray ponds are used for cooling warm water coming out of condenser in
(a) Large power plants
(b) Medium power plants
(c) Small power plants
(d) Both in medium and large power plants
Answer:

Option (c)

128.
The drawback of spray ponds is
(a) Large ground area is required especially in case of large sized power plants
(b) Loss of water due to evaporation
(c) Considerable quantity of water is carried away in air when its velocity is high
(d) All of above
Answer:

Option (d)

129.
In which of the following steam turbines the back pressure will be below the atmospheric one ?
(a) Non-condensing turbine
(b) Condensing turbine
(c) Topping turbine
(d) None of above
Answer:

Option (b)

130.
The modern steam turbines are
(a) Reaction turbines
(b) Impulse turbines
(c) Impulse reaction turbines
(d) None of above
Answer:

Option (c)

Showing 121 to 130 out of 425 Questions
10 11 12 13 14 15