Chemical Engineering Basics

Question: Adhesives
[A].

can’t be used in the form of pressure sensitive tapes.

[B].

can’t join two dissimilar metals.

[C].

cure instantaneously after application on a surface.

[D].

none of these.

Answer: Option D

Explanation:

No answer description available for this question.

Question: Ester is formed, when an alcohol reacts with
[A].

carboxylic acid

[B].

aldehyde

[C].

ketone

[D].

ether

Answer: Option A

Explanation:

No answer description available for this question.

Question: Milligram of KOH required to saponify 1 gm of oil is called its __________ number.
[A].

saponification

[B].

acid

[C].

precipitation

[D].

emulsion

Answer: Option A

Explanation:

No answer description available for this question.

Question: __________ wire is never used for making the heating element.
[A].

Nichrome

[B].

Kanthal

[C].

Invar

[D].

None of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: Permanent set in a material is produced by subjecting it to
[A].

triaxial loading.

[B].

fatigue loading.

[C].

stresses beyond the elastic limit.

[D].

tensile & compressive loads simultaneously.

Answer: Option C

Explanation:

No answer description available for this question.

Question: The materials which fracture even at small strains are termed as brittle, while those materials which exhibit an appreciable deformation before failure are termed as
[A].

rigid

[B].

tough

[C].

ductile

[D].

plastic

Answer: Option C

Explanation:

No answer description available for this question.

Question: An example of unsteady non uniform flow is the flow of liquid under pressure through a
[A].

tapering pipe at constant flow rate.

[B].

tapering pipe at either decreasing or increasing flow rate.

[C].

long pipeline of constant diameter.

[D].

none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Cobalt – 60 is used as a source of __________ in medical therapy & industrial radiography.
[A].

X-rays

[B].

γ-rays

[C].

α-rays

[D].

β-rays

Answer: Option B

Explanation:

No answer description available for this question.

Question: Minimum diameter of the tube used for making water manometer should be __________ mm to avoid a correction for the effect of capillarity.
[A].

1

[B].

2.5

[C].

4

[D].

6

Answer: Option D

Explanation:

No answer description available for this question.

Question: While the bin cards are used in the effective stores management, the queing theory is associated with the __________ time.
[A].

waiting

[B].

idle

[C].

inspection

[D].

tool replacement

Answer: Option A

Explanation:

No answer description available for this question.