CHEMICAL ENGINEERING | Fuels and Combustion

Naphthalene recovered from coke oven gas is used

Byadmin August 19, 2022

Question: Naphthalene recovered from coke oven gas is used
[A].

as moisture proof coating on fibres.

[B].

as moth balls (insecticides).

[C].

as a fuel in furnaces.

[D].

for making electrodes.

Answer: Option B

Explanation:

No answer description available for this question.

Fuels and Combustion

Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the___________________?

Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the___________________?

A. Requirement of large volume combustion chamber
B. Risk of explosion
C. Chances of clinker formation
D. Incomplete combustion of coal

Read More Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the___________________?
CHEMICAL ENGINEERING | Fluid Mechanics

__________ forces act on a particle moving through a stationary fluid.

Question: __________ forces act on a particle moving through a stationary fluid.
[A].

Gravity
[B].
Drag
[C].
Buoyant
[D].
all (a), (b), & (c)

Answer: Option D

Explanation:

No answer description available for this question.

Read More __________ forces act on a particle moving through a stationary fluid.
CHEMICAL ENGINEERING | Thermodynamics for Chemical

In the ammonia synthesis reaction, N2 + 3H2 ⇌ 2NH3 + 22.4 kcal, the formation of NH3 will be favoured by___________________?

In the ammonia synthesis reaction, N2 + 3H2 ⇌ 2NH3 + 22.4 kcal, the formation of NH3 will be favoured by___________________?

A. High temperature
B. Low pressure
C. Low temperature only
D. Both low temperature and high pressure

Read More In the ammonia synthesis reaction, N2 + 3H2 ⇌ 2NH3 + 22.4 kcal, the formation of NH3 will be favoured by___________________?
CHEMICAL ENGINEERING | Chemical Process

In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed :

Question: In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed :
[A].

furnace → converter → absorber
[B].
furnace → evaporator → absorber
[C].
furnace → converter → evaporator
[D].
converter → furnace → absorber

Answer: Option A

Explanation:

No answer description available for this question.

Read More In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed :
CHEMICAL ENGINEERING | Chemical Engineering Basics

Increasing the carbon content of steel

Question: Increasing the carbon content of steel
[A].

reduces the upper shelf energy.
[B].
increasing the ductility transition temperature.
[C].
decreases brittleness.
[D].
decreases hardness.

Answer: Option B

Explanation:

No answer description available for this question.

Read More Increasing the carbon content of steel
CHEMICAL ENGINEERING | Fluid Mechanics

Normal depth in open channel flow is the depth of flow in the channel

Question: Normal depth in open channel flow is the depth of flow in the channel
[A].

corresponding to uniform flow.
[B].
measured normal to the channel bed.
[C].
corresponding to steady flow.
[D].
none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Normal depth in open channel flow is the depth of flow in the channel

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