CHEMICAL ENGINEERING | Chemical Engineering Basics

Magnetic permeability of iron is increased by its

Byadmin August 3, 2022

Question: Magnetic permeability of iron is increased by its
[A].

decarburising.

[B].

alloying with cobalt.

[C].

purification.

[D].

alternate heating & cooling.

Answer: Option B

Explanation:

No answer description available for this question.

Chemical Engineering Basics

Cold cracking in the heat affected zone of a high strength steel weld can take place because of the___________________?

Cold cracking in the heat affected zone of a high strength steel weld can take place because of the___________________?

A. Retained austenite
B. Martensite formation
C. Relatively high sulphur content in the base metal
D. Sufficient hydrogen present in the welding arc

Read More Cold cracking in the heat affected zone of a high strength steel weld can take place because of the___________________?
CHEMICAL ENGINEERING | Fluid Mechanics

For a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the

Question: For a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the
[A].

square of the radial distance.
[B].
radial distance linearly.
[C].
inverse of the radial distance.
[D].
elevation along vertical direction.

Answer: Option A

Explanation:

No answer description available for this question.

Read More For a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the
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 Basics

In cold working of metal as compared to its hot working

Question: In cold working of metal as compared to its hot working
[A].

cracks and blow holes are eliminated.
[B].
ductility and impact strength improves.
[C].
appreciable strain hardening is produced.
[D].
yield stress, hardness and fatigue strength is not at all affected.

Answer: Option D

Explanation:

No answer description available for this question.

Read More In cold working of metal as compared to its hot working
CHEMICAL ENGINEERING | Fertiliser Technology

Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is

Question: Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is
[A].

exothermic
[B].
endothermic
[C].
autocatalytic
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is
CHEMICAL ENGINEERING | Chemical Engineering Basics

Larger length & diameter water pipes are made by

Question: Larger length & diameter water pipes are made by
[A].

electrical resistance welding.
[B].
die casting.
[C].
semi-centrifugal casting.
[D].
continuous casting.

Answer: Option C

Explanation:

No answer description available for this question.

Read More Larger length & diameter water pipes are made by

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