CHEMICAL ENGINEERING | Materials and Construction

As the impurities are oxidised, the melting point of iron

Byadmin August 29, 2022

Question: As the impurities are oxidised, the melting point of iron
[A].

decreases.

[B].

remains unchanged.

[C].

increases.

[D].

may increase or decrease ; unpredictable.

Answer: Option C

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Reaction Engineering

A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by

Question: A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by
[A].

keff = k + kg
[B].
keff = (k+ kg)/2
[C].
keff = (kkg)1/2
[D].

Answer: Option D

Explanation:

No answer description available for this question.

Read More A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by
CHEMICAL ENGINEERING | Environmental Engineering

Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes

Question: Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes
[A].

blood poisoning.
[B].
anaemia.
[C].
nervous system disorder.
[D].
all (a), (b) & (c).

Answer: Option D

Explanation:

No answer description available for this question.

Read More Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes
CHEMICAL ENGINEERING | Mass Transfer

Heat sensitive materials with very high latent heat of vaporisation may be economically separated using

Question: Heat sensitive materials with very high latent heat of vaporisation may be economically separated using
[A].

liquid extraction
[B].
distillation
[C].
evaporation
[D].
absorption

Answer: Option A

Explanation:

No answer description available for this question.

Read More Heat sensitive materials with very high latent heat of vaporisation may be economically separated using
Materials and Construction

Creep is not exhibited at low temperature by _____________________?

Creep is not exhibited at low temperature by _____________________?

A. Rubber
B. Acrylics
C. Lead
D. Plastics

Read More Creep is not exhibited at low temperature by _____________________?
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when

Question: In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when
[A].

n = y = 1.4
[B].
n = 0
[C].
n = 1
[D].
n = 1.66

Answer: Option C

Explanation:

No answer description available for this question.

Read More In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when
CHEMICAL ENGINEERING | Mass Transfer

If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent.

Question: If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent.
[A].

100
[B].
> 100
[C].
< 100
[D].
none of these

Answer: Option B

Explanation:

No answer description available for this question.

Read More If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent.

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