Power Plant Engineering (2171910) MCQs

MCQs of Draught System

Showing 11 to 20 out of 26 Questions
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11.

The chimney draught varies with______________.

(a)

climatic condition
(b)

temperature of furnace gases
(c)

height of chimney
(d)

all of these
Answer:

Option (d)

12.

Which of these is not a type of mechanical draft system for a furnace?

(a)

balanced draft
(b)

induced draft
(c)

forced draft
(d)

actuated draft
Answer:

Option (d)

13.

The flue gases in natural draught are at_____________temperature compared to flue gases in artificial draught.

(a)

higher
(b)

lower
(c)

equal
(d)

all of the given
Answer:

Option (a)

14.

Artificial draught is also called as _______.

(a)

Force draught
(b)

Induced draught
(c)

Balanced draught
(d)

Mechanical draught
Answer:

Option (d)

15.

The artificial draught is designed to produce

(a)

less smoke
(b)

more draught
(c)

less chimney gas temperature
(d)

all of the given
Answer:

Option (d)

16.

The efficiency of the plant______________with the mechanical draught.

(a)

increases
(b)

decreases
(c)

remain constant
(d)

none of the given
Answer:

Option (a)

17.

The mechanical draught produces___________draught than natural draught.

(a)

more
(b)

less
(c)

equal
(d)

all of the given
Answer:

Option (a)

18.

What is installed to transfer air into furnace in forced draught system?

(a)

Air blower/fan
(b)

Tuyeres
(c)

Draft gauges
(d)

Cyclone separator
Answer:

Option (a)

19.

If the pressure inside the flue passages is more than atmospheric then it is called

(a)

negative draught
(b)

positive draught
(c)

balanced draught
(d)

steam jet induced draught
Answer:

Option (b)

20.

What type of draught fan is used to draw air from the air preheater?

(a)

Balanced draught fan
(b)

Induced draught fan
(c)

Forced draught fan
(d)

Artificial draught fan
Answer:

Option (b)

Showing 11 to 20 out of 26 Questions
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