CHEMICAL ENGINEERING | Environmental Engineering

In sewage treatment, its sedimentation is speeded up by commonly adding

Byadmin August 13, 2022

Question: In sewage treatment, its sedimentation is speeded up by commonly adding
[A].

hydrochloric acid.

[B].

lime.

[C].

copper sulphate.

[D].

sodium sulphate.

Answer: Option B

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Reaction Engineering

Limiting reactant in a chemical reaction decides the

Question: Limiting reactant in a chemical reaction decides the
[A].

rate constant
[B].
conversion
[C].
reaction speed
[D].
equilibrium constant.

Answer: Option B

Explanation:

No answer description available for this question.

Read More Limiting reactant in a chemical reaction decides the
CHEMICAL ENGINEERING | Chemical Engineering Basics

A dummy activity is used in PERT network to describe the

Question: A dummy activity is used in PERT network to describe the
[A].

precedence relationship.
[B].
resource idleness.
[C].
resource restriction.
[D].
necessary time delay.

Answer: Option A

Explanation:

No answer description available for this question.

Read More A dummy activity is used in PERT network to describe the
CHEMICAL ENGINEERING | Environmental Engineering

Carbonaceous particles having size less than 1 μm are called

Question: Carbonaceous particles having size less than 1 μm are called
[A].

grit
[B].
aggregates
[C].
aerosols
[D].
smoke

Answer: Option D

Explanation:

No answer description available for this question.

Read More Carbonaceous particles having size less than 1 μm are called
CHEMICAL ENGINEERING | Fluid Mechanics

Newton’s law of viscosity relates the

Question: Newton’s law of viscosity relates the
[A].

shear stress and velocity.
[B].
velocity gradient and pressure intensity.
[C].
shear stress and rate of angular deformation in a fluid.
[D].
pressure gradient and rate of angular deformation.

Answer: Option C

Explanation:

No answer description available for this question.

Read More Newton’s law of viscosity relates the
CHEMICAL ENGINEERING | Environmental Engineering

Growth of __________ is promoted by the presence of manganese in water.

Question: Growth of __________ is promoted by the presence of manganese in water.
[A].

files
[B].
algae
[C].
micro-organisms
[D].
mosquitoes

Answer: Option C

Explanation:

No answer description available for this question.

Read More Growth of __________ is promoted by the presence of manganese in water.
CHEMICAL ENGINEERING | Mass Transfer

Operating velocity in a packed tower is usually __________ the flooding velocity.

Question: Operating velocity in a packed tower is usually __________ the flooding velocity.
[A].

half
[B].
twice
[C].
equal to
[D].
more than

Answer: Option A

Explanation:

No answer description available for this question.

Read More Operating velocity in a packed tower is usually __________ the flooding velocity.

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