Power System - I (3140914) MCQs

MCQs of Conventional Generation, Load Curves and Tariffs

Showing 81 to 90 out of 425 Questions
6 7 8 9 10 11
81.
Deaerative heating is done to
(a) Heat the steam
(b) Heat the feed water
(c) Remove dissolved gases in water
(d) Remove dissolved solid impurities in water
Answer:

Option (c)

82.
In a thermal power plant, the feed water coming to the economizer is heated using
(a) HP steam
(b) LP steam
(c) Direct heat in the furnace
(d) Flue gases
Answer:

Option (d)

83.
Arrange the following in the correct sequence in which the flue gases passes through them after coming out of the boiler in a thermal power station
1. ID Fan
2. Air preheater
3. Economizer
4. Electrostatic precipitator
(a) 4, 3, 2, 1
(b) 3, 2, 4, 1
(c) 2, 1, 4, 3
(d) 1, 4, 3, 2
Answer:

Option (b)

84.
In bleeder turbines, part of the steam is extracted for
(a) Condensation
(b) Reheating
(c) Feed water heating
(d) Secondary air heating
Answer:

Option (c)

85.
Which of the following is not a high pressure boiler?
(a) Velox
(b) Lamount
(c) Lancashire
(d) Loeffler
Answer:

Option (c)

86.
Which of the following is not a fire tube boiler ?
(a) Babcock and Wilcox
(b) Lancashire
(c) Locomotive
(d) Cochron
Answer:

Option (a)

87.
Which of the following boilers cannot be employed for generating steam at 100 atmosphere ?
(a) Cochron boiler
(b) Lancashire boiler
(c) Locomotive boiler
(d) All of above
Answer:

Option (d)

88.
Water is supplied to the boiler at
(a) Atmospheric pressure
(b) More than steam pressure in the boiler
(c) Slightly more than atmospheric pressure
(d) Any pressure
Answer:

Option (b)

89.
The efficiency of a boiler used in a modern steam power plants is of the order of
(a) 30%
(b) 50%
(c) 85%
(d) 100%
Answer:

Option (c)

90.
Steam pressure used in steam power plants in India is in the range of
(a) 110 – 170 kg/cm2
(b) 40 – 80 kg/cm2
(c) 20 – 40 kg/cm2
(d) 250 kg/cm2
Answer:

Option (a)

Showing 81 to 90 out of 425 Questions
6 7 8 9 10 11