Which of the following is a poisonous fuel gas ?

Question: Artificial draught produced by a fan can be controlled by the
[A].

speed of the fan.

[B].

damper.

[C].

variation in the pitch of the fan blades.

[D].

all (a), (b)and(c).

Answer: Option D

Explanation:

No answer description available for this question.

Question: Bituminous coal
[A].

ignites less easily than anthracite.

[B].

is generally coking.

[C].

burns with smoky yellow flame.

[D].

both (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

Question: With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases.
[A].

hydrogen

[B].

methane

[C].

unsaturated hydrocarbons

[D].

all (a), (b) and (c)

Answer: Option A

Explanation:

No answer description available for this question.