Low temperature carbonisation

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Question: Low temperature carbonisation
[A].

is mainly for producing the smokeless domestic coke.

[B].

is meant for the production of ‘metallurgical coke’.

[C].

produces higher quantity of gas than high temperature carbonisation.

[D].

produces less quantity of tar than high temperature carbonisation.

Answer: Option A

Explanation:

No answer description available for this question.

In high temperature carbonisation of coal compared to low temperature carbonisation

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Question: In high temperature carbonisation of coal compared to low temperature carbonisation
[A].

yield of ammonia is less.

[B].

aromatic content of tar is low.

[C].

H2 content in the coke oven gas is more.

[D].

calorific value of the coke oven gas is lower.

Answer: Option C

Explanation:

No answer description available for this question.

Anthracite can be used for

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Question: Anthracite can be used for
[A].

recarbonising steel.

[B].

making carbon electrodes;

[C].

blending with highly coking coal to check its swelling which helps in saving coke even walls from damage and to produce high strength coke.

[D].

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

Answer: Option D

Explanation:

No answer description available for this question.

In the figure given below, square represents doctors, triangle represents ladies and circle represents surgeon. By which letter the ladies who doctor and surgeon both are represented ?

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Question: In the figure given below, square represents doctors, triangle represents ladies and circle represents surgeon. By which letter the ladies who doctor and surgeon both are represented ?
[A].

U

[B].

T

[C].

S

[D].

P

Answer: Option B

Explanation:

No answer description available for this question.

Combustion of pulverised fuel

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Question: Combustion of pulverised fuel
[A].

requires larger combustion chamber than rich gaseous fuel.

[B].

in a metallurgical furnace does not contaminate the product in the furnace by ash from fuel.

[C].

suppresses the discharge of fine dust and grit into atmosphere

[D].

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

Answer: Option A

Explanation:

No answer description available for this question.

In the following figure triangle represents ‘girls’, square players and circle-coach. Which part of the diagram represents the girls who are player but not coach?

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Question: In the following figure triangle represents ‘girls’, square players and circle-coach. Which part of the diagram represents the girls who are player but not coach?
[A].

P

[B].

Q

[C].

R

[D].

S

Answer: Option B

Explanation:

Q part of the figure represents those girls who are players but not coach.