CHEMICAL ENGINEERING | Fuels and Combustion

The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal.

Byadmin August 19, 2022

Question: The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal.
[A].

fast & high

[B].

slow & low

[C].

slow & high

[D].

fast & slow

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Environmental Engineering

Noise level in a quiet private business office is about __________ decibels.

Question: Noise level in a quiet private business office is about __________ decibels.
[A].

25
[B].
50
[C].
70
[D].
85

Answer: Option B

Explanation:

No answer description available for this question.

Read More Noise level in a quiet private business office is about __________ decibels.
CHEMICAL ENGINEERING | Chemical Process

Chalcopyrite is the main ore of

Question: Chalcopyrite is the main ore of
[A].

copper
[B].
lead
[C].
tin
[D].
iron

Answer: Option A

Explanation:

No answer description available for this question.

Read More Chalcopyrite is the main ore of
Fuels and Combustion

Oxygen content in a flue gas was found to be 4%. It implies that excess air used for combustion was around ______________ percent?

Oxygen content in a flue gas was found to be 4%. It implies that excess air used for combustion was around ______________ percent?

A. 4
B. 96
C. 20
D. 40

Read More Oxygen content in a flue gas was found to be 4%. It implies that excess air used for combustion was around ______________ percent?
CHEMICAL ENGINEERING | Materials and Construction

Locomotive boiler tubes are made of __________ alloys.

Question: Locomotive boiler tubes are made of __________ alloys.
[A].

arsenic copper
[B].
magnesium
[C].
aluminium
[D].
nickel

Answer: Option A

Explanation:

No answer description available for this question.

Read More Locomotive boiler tubes are made of __________ alloys.
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

If heat contents of CH4, C2H4 and C3H8 are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH4(g) + C2H4(g) C3H8(g) will be __________ Kcal.

Question: If heat contents of CH4, C2H4 and C3H8 are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH4(g) + C2H4(g) C3H8(g) will be __________ Kcal.
[A].

-19.4
[B].
-30.2
[C].
55.2
[D].
-55.2

Answer: Option A

Explanation:

No answer description available for this question.

Read More If heat contents of CH4, C2H4 and C3H8 are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH4(g) + C2H4(g) C3H8(g) will be __________ Kcal.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Fatigue life is expected to increase by

Question: Fatigue life is expected to increase by
[A].

increasing the size of the sample.
[B].
smooth polishing of the surface of the sample.
[C].
having compressive residual stresses at the surface.
[D].
having tensile residual stresses at the surface.

Answer: Option C

Explanation:

No answer description available for this question.

Read More Fatigue life is expected to increase by

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