CHEMICAL ENGINEERING | Chemical Engineering Basics

Normalising of a casting does not

Byadmin August 8, 2022

Question: Normalising of a casting does not
[A].

induce stresses in it.

[B].

refine its grain structure.

[C].

reduce seggregation.

[D].

improve its mechanical properties.

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Mass Transfer

For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as

Question: For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as
[A].

Re0.33
[B].
Re0.53
[C].
Re0.83
[D].
Re

Answer: Option C

Explanation:

No answer description available for this question.

Read More For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as
CHEMICAL ENGINEERING | Heat Transfer

__________ paint has the maximum absorption coefficient.

Question: __________ paint has the maximum absorption coefficient.
[A].

Black
[B].
Yellow
[C].
White
[D].
Grey

Answer: Option A

Explanation:

No answer description available for this question.

Read More __________ paint has the maximum absorption coefficient.
CHEMICAL ENGINEERING | Heat Transfer

__________ paint has the minimum absorption co-efficient.

Question: __________ paint has the minimum absorption co-efficient.
[A].

Black
[B].
White lead
[C].
Grey
[D].
Light cream

Answer: Option B

Explanation:

No answer description available for this question.

Read More __________ paint has the minimum absorption co-efficient.
CHEMICAL ENGINEERING | Chemical Process

In sulphate pulp manufacture, the pressure and temperature in the digestor is

Question: In sulphate pulp manufacture, the pressure and temperature in the digestor is
[A].

10 atm., 800 °C
[B].
10 atm., 170-180°C
[C].
1 atm., 170 – 180°C
[D].
l atm., 800°C

Answer: Option B

Explanation:

No answer description available for this question.

Read More In sulphate pulp manufacture, the pressure and temperature in the digestor is
CHEMICAL ENGINEERING | Chemical Reaction Engineering

For a tubular reactor with space time ‘τ’ and residence time ‘θ’, the following statement holds good.

Question: For a tubular reactor with space time ‘τ’ and residence time ‘θ’, the following statement holds good.
[A].

τ and θ are always equal.
[B].
τ = θ , when the fluid density changes in the reactor.
[C].
τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant.
[D].
τ = θ , for a non-isothermal reactor.

Answer: Option C

Explanation:

No answer description available for this question.

Read More For a tubular reactor with space time ‘τ’ and residence time ‘θ’, the following statement holds good.
Chemical Engineering Basics

Coating provided on the electrodes used in the arc welding is not expected to_________________?

Coating provided on the electrodes used in the arc welding is not expected to_________________?

A. Add alloying elements
B. Prevent electrode from contamination
C. Stabilise the arc
D. Provide protective atmosphere to weld

Read More Coating provided on the electrodes used in the arc welding is not expected to_________________?

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