For condensation of pure vapors, if the heat transfer co-efficients in filmwise and drop-wise condensation are respectively hf and hd, then

Byadmin August 25, 2022

Question: For condensation of pure vapors, if the heat transfer co-efficients in filmwise and drop-wise condensation are respectively hf and hd, then
[A].

hf = hd

[B].

hf > hd

[C].

hf < hd

[D].

hf could be greater or smaller than hd

Answer: Option C

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Fuels and Combustion

Explosion limit of blast furnace gas is 37 to 71% gas in gas-air mixture. It means that the blast furnace gas will explode when burnt in a confined space, if its concentration in the gas-air mixture is __________ percent.

Question: Explosion limit of blast furnace gas is 37 to 71% gas in gas-air mixture. It means that the blast furnace gas will explode when burnt in a confined space, if its concentration in the gas-air mixture is __________ percent.
[A].

< 37%
[B].
>71%
[C].
in between 37 & 71%
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More Explosion limit of blast furnace gas is 37 to 71% gas in gas-air mixture. It means that the blast furnace gas will explode when burnt in a confined space, if its concentration in the gas-air mixture is __________ percent.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the __________ method.

Question: Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the __________ method.
[A].

diminishing balance
[B].
sinking fund
[C].
multiple straight line
[D].
sum of the years digit

Answer: Option A

Explanation:

No answer description available for this question.

Read More Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the __________ method.
CHEMICAL ENGINEERING | Fuels and Combustion

Dust content in raw blast furnace gas is about __________ gm/Nm3 , hence it is cleaned to the dust level of about < 10 mg /Nm3 before use.

Question: Dust content in raw blast furnace gas is about __________ gm/Nm3 , hence it is cleaned to the dust level of about < 10 mg /Nm3 before use.
[A].

15-30
[B].
1-2
[C].
70-100
[D].
150-200

Answer: Option A

Explanation:

No answer description available for this question.

Read More Dust content in raw blast furnace gas is about __________ gm/Nm3 , hence it is cleaned to the dust level of about < 10 mg /Nm3 before use.
CHEMICAL ENGINEERING | Chemical Reaction Engineering

With increase in initial concentration, the fractional conversion of a first order reaction in a given time

Question: With increase in initial concentration, the fractional conversion of a first order reaction in a given time
[A].

increases
[B].
decreases
[C].
remains constant
[D].
unpredictable

Answer: Option C

Explanation:

No answer description available for this question.

Read More With increase in initial concentration, the fractional conversion of a first order reaction in a given time
CHEMICAL ENGINEERING | Chemical Engineering Basics

Material having negative co-efficient of linear expansion is

Question: Material having negative co-efficient of linear expansion is
[A].

copper
[B].
aluminium
[C].
rubber
[D].
nickel

Answer: Option C

Explanation:

No answer description available for this question.

Read More Material having negative co-efficient of linear expansion is
CHEMICAL ENGINEERING | Chemical Engineering Basics

A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action.

Question: A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action.
[A].

proportional
[B].
integral
[C].
derivative
[D].
none of these

Answer: Option B

Explanation:

No answer description available for this question.

Read More A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action.

Similar Posts