CHEMICAL ENGINEERING | Environmental Engineering

BOD of raw municipal sewage may be in the range of about __________ mg/litre.

Byadmin August 12, 2022

Question: BOD of raw municipal sewage may be in the range of about __________ mg/litre.
[A].

1-2

[B].

5-10

[C].

150-300

[D].

2000-3000

Answer: Option C

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Fuels and Combustion

In flue gas analysis by Orsat’s apparatus, oxygen is absorbed by

Question: In flue gas analysis by Orsat’s apparatus, oxygen is absorbed by
[A].

potassium hydroxide.
[B].
cuprous chloride.
[C].
alkaline pyragllol solution.
[D].
none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Read More In flue gas analysis by Orsat’s apparatus, oxygen is absorbed by
CHEMICAL ENGINEERING | Mass Transfer

(NSh/NRe.NSc) is termed in mass transfer operation as the

Question: (NSh/NRe.NSc) is termed in mass transfer operation as the
[A].

Stanton number
[B].
Peclet number
[C].
thermal diffusivity
[D].
momentum diffusivity

Answer: Option A

Explanation:

No answer description available for this question.

Read More (NSh/NRe.NSc) is termed in mass transfer operation as the
CHEMICAL ENGINEERING | Chemical Engineering Basics

Direct conversion of thermal energy to electrical energy is facilitated by the

Question: Direct conversion of thermal energy to electrical energy is facilitated by the
[A].

fuel cells.
[B].
photo voltaic cell.
[C].
magneto hydrodynamic generator.
[D].
none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Read More Direct conversion of thermal energy to electrical energy is facilitated by the
CHEMICAL ENGINEERING | Mass Transfer

One mole feed of a binary mixture of a given composition is flash vaporised at a fixed P and T. If Raoult’s law is obeyed, then changing the feed composition would effect

Question: One mole feed of a binary mixture of a given composition is flash vaporised at a fixed P and T. If Raoult’s law is obeyed, then changing the feed composition would effect
[A].

the product composition but not the fraction vaporised.
[B].
the product composition as well as the fraction vaporised.
[C].
the fraction vaporised but not the product composition.
[D].
neither the product composition nor the fraction vaporised.

Answer: Option C

Explanation:

No answer description available for this question.

Read More One mole feed of a binary mixture of a given composition is flash vaporised at a fixed P and T. If Raoult’s law is obeyed, then changing the feed composition would effect
CHEMICAL ENGINEERING | Fuels and Combustion

With increase in moisture content of coal, its

Question: With increase in moisture content of coal, its
[A].

calorific value increases.
[B].
caking properties diminish.
[C].
swelling during carbonisation becomes excessive.
[D].
none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Read More With increase in moisture content of coal, its
CHEMICAL ENGINEERING | Environmental Engineering

Dissolved oxygen content in river water is around __________ ppm.

Question: Dissolved oxygen content in river water is around __________ ppm.
[A].

5
[B].
100
[C].
250
[D].
500

Answer: Option A

Explanation:

No answer description available for this question.

Read More Dissolved oxygen content in river water is around __________ ppm.

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