CHEMICAL ENGINEERING | Environmental Engineering

Exposure to chemicals having carcinogenic properties cause

Byadmin August 13, 2022

Question: Exposure to chemicals having carcinogenic properties cause
[A].

dermatitis (skin disorder)

[B].

cancer

[C].

asphyxiation

[D].

asthma

Answer: Option B

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Engineering Basics

Heating the hypoeutectoid steels to 30°C above the upper critical temperature line, soaking at that temperature and then cooling slowly to the room temperature to form a pearlite & ferrite structure is called

Question: Heating the hypoeutectoid steels to 30°C above the upper critical temperature line, soaking at that temperature and then cooling slowly to the room temperature to form a pearlite & ferrite structure is called
[A].

tempering
[B].
hardening
[C].
annealing
[D].
normalising

Answer: Option C

Explanation:

No answer description available for this question.

Read More Heating the hypoeutectoid steels to 30°C above the upper critical temperature line, soaking at that temperature and then cooling slowly to the room temperature to form a pearlite & ferrite structure is called
CHEMICAL ENGINEERING | Chemical Engineering Basics

At the point of boundary layer separation in fluid flow, the

Question: At the point of boundary layer separation in fluid flow, the
[A].

shear stress is maximum.
[B].
velocity gradient is flat.
[C].
density variation is maximum.
[D].
shear stress is zero.

Answer: Option A

Explanation:

No answer description available for this question.

Read More At the point of boundary layer separation in fluid flow, the
CHEMICAL ENGINEERING | Chemical Engineering Plant Economics

With increase in the discounted cash flow rate of return, the ratio of the total present value to the initial investment of a given project

Question: With increase in the discounted cash flow rate of return, the ratio of the total present value to the initial investment of a given project
[A].

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

Answer: Option A

Explanation:

No answer description available for this question.

Read More With increase in the discounted cash flow rate of return, the ratio of the total present value to the initial investment of a given project
CHEMICAL ENGINEERING | Chemical Reaction Engineering

For multiple reactions, the flow pattern within the vessel affects the

Question: For multiple reactions, the flow pattern within the vessel affects the
[A].

size requirement
[B].
distribution of reaction products
[C].
both (a) and (b)
[D].
neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question.

Read More For multiple reactions, the flow pattern within the vessel affects the
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 Basics

With increase in temperature, the surface tension of water

Question: With increase in temperature, the surface tension of water
[A].

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

Answer: Option B

Explanation:

No answer description available for this question.

Read More With increase in temperature, the surface tension of water

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