CHEMICAL ENGINEERING | Chemical Engineering Basics

Heat treatment of steel is done mainly to change its

Byadmin July 30, 2022

Question: Heat treatment of steel is done mainly to change its
[A].

mechanical properties.

[B].

physical properties,

[C].

chemical composition.

[D].

all ‘a’, ‘b’ & ‘c’.

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Engineering Basics

Filler metal is not used in the __________ welding.

Question: Filler metal is not used in the __________ welding.
[A].

seam
[B].
electric spot
[C].
projection
[D].
all a, b & c

Answer: Option D

Explanation:

No answer description available for this question.

Read More Filler metal is not used in the __________ welding.
CHEMICAL ENGINEERING | Chemical Engineering Basics

A pipeline buried in soil is commonly protected from corrosion by

Question: A pipeline buried in soil is commonly protected from corrosion by
[A].

anodic protection.
[B].
cathodic protection.
[C].
using inhibitors.
[D].
using a special alloy resistant to corrosion.

Answer: Option B

Explanation:

No answer description available for this question.

Read More A pipeline buried in soil is commonly protected from corrosion by
Chemical Engineering Basics

A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in _______________ electrons ?

A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in _______________ electrons ?

A. Lack of free
B. Excess of
C. Decrease in
D. None of these

Read More A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in _______________ electrons ?
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

In the ammonia synthesis reaction, N2 + 3H2 2NH3 + 22.4 kcal, the formation of NH3 will be favoured by

Question: In the ammonia synthesis reaction, N2 + 3H2 2NH3 + 22.4 kcal, the formation of NH3 will be favoured by
[A].

high temperature.
[B].
low pressure.
[C].
low temperature only.
[D].
both low temperature and high pressure.

Answer: Option D

Explanation:

No answer description available for this question.

Read More In the ammonia synthesis reaction, N2 + 3H2 2NH3 + 22.4 kcal, the formation of NH3 will be favoured by
CHEMICAL ENGINEERING | Chemical Process

A mineral is termed as ‘ore’, if

Question: A mineral is termed as ‘ore’, if
[A].

a metal can be economically extracted from it.
[B].
it contains ≥ 40% metal.
[C].
the metal present in it is costly.
[D].
all (a), (b) and (c).

Answer: Option A

Explanation:

No answer description available for this question.

Read More A mineral is termed as ‘ore’, if
CHEMICAL ENGINEERING | Environmental Engineering

80% less than 200 mesh size particles are called

Question: 80% less than 200 mesh size particles are called
[A].

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

Answer: Option B

Explanation:

No answer description available for this question.

Read More 80% less than 200 mesh size particles are called

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