CHEMICAL ENGINEERING | Chemical Engineering Basics

A reduction process is accompanied with increase in the

Byadmin July 30, 2022

Question: A reduction process is accompanied with increase in the
[A].

number of electrons.

[B].

oxidation number.

[C].

both (a) & (b).

[D].

neither (a) nor (b).

Answer: Option A

Explanation:

No answer description available for this question.

Chemical Engineering Basics

The most prominent single cause of corrosion in boiler-tubes, drums, economisers and steam superheaters in a thermal power plant boiler is the_______________?

The most prominent single cause of corrosion in boiler-tubes, drums, economisers and steam superheaters in a thermal power plant boiler is the_______________?

A. Water alkalinity & leakage
B. Hydrazine addition during feed water treatment
C. Release of non-condensable gas from water in the boiler
D. Scale formation

Read More The most prominent single cause of corrosion in boiler-tubes, drums, economisers and steam superheaters in a thermal power plant boiler is the_______________?
CHEMICAL ENGINEERING | Chemical Reaction Engineering

For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by

Question: For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by
[A].

a dirac delta function
[B].
a step function.
[C].
a ramp function.
[D].
none of the above

Answer: Option D

Explanation:

No answer description available for this question.

Read More For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by
CHEMICAL ENGINEERING | Chemical Engineering Basics

Brinell Hardness Number (BHN) for talc is approximately in the range of

Question: Brinell Hardness Number (BHN) for talc is approximately in the range of
[A].

1-5
[B].
20-30
[C].
100-150
[D].
200-250

Answer: Option B

Explanation:

No answer description available for this question.

Read More Brinell Hardness Number (BHN) for talc is approximately in the range of
Chemical Engineering Basics

In electrical resistance welding, distortion results from the use of improper________________?

In electrical resistance welding, distortion results from the use of improper________________?

A. Clamg methods
B. Electrodes
C. Current
D. Filler material

Read More In electrical resistance welding, distortion results from the use of improper________________?
CHEMICAL ENGINEERING | Mass Transfer

Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and ‘t’ is time)

Question: Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and ‘t’ is time)
[A].

(De.t)1/2
[B].
(De/t)1/2
[C].
(4De/πt)1/2
[D].
(4De/t)

Answer: Option C

Explanation:

No answer description available for this question.

Read More Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and ‘t’ is time)
CHEMICAL ENGINEERING | Chemical Engineering Plant Economics

A reactor having a salvage value of Rs. 10000 is estimated to have a service life of 10 years. The annual interest rate is 10%. The original cost of the reactor was Rs. 80000. The book value of the reactor after 5 years using sinking fund depreciation method will be Rs.

Question: A reactor having a salvage value of Rs. 10000 is estimated to have a service life of 10 years. The annual interest rate is 10%. The original cost of the reactor was Rs. 80000. The book value of the reactor after 5 years using sinking fund depreciation method will be Rs.
[A].

40096
[B].
43196
[C].
53196
[D].
60196

Answer: Option D

Explanation:

No answer description available for this question.

Read More A reactor having a salvage value of Rs. 10000 is estimated to have a service life of 10 years. The annual interest rate is 10%. The original cost of the reactor was Rs. 80000. The book value of the reactor after 5 years using sinking fund depreciation method will be Rs.

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