Chemical Engineering Basics

Question: Galena is an ore of
[A].

iron

[B].

copper

[C].

lead

[D].

aluminium

Answer: Option C

Explanation:

No answer description available for this question.

Question: __________ property of a material is determined by the Herbert Pendulum device.
[A].

Hardness

[B].

Tensile

[C].

Toughness

[D].

Compressive

Answer: Option A

Explanation:

No answer description available for this question.

Question: L.D. (Linz-Donawitz) converter is used in the production of
[A].

copper

[B].

steel

[C].

zinc

[D].

aluminium

Answer: Option B

Explanation:

No answer description available for this question.

Question: Annealing of cast iron
[A].

softens it to facilitate machining.

[B].

decreases the free carbon.

[C].

increases the strength.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Question: __________ test is the appropriate test to determine whether a material is ductile or brittle.
[A].

Impact

[B].

Cupping

[C].

Hardness

[D].

Tensile

Answer: Option A

Explanation:

No answer description available for this question.

Question: Young’s modulus of a material is the measure of its
[A].

stiffness

[B].

malleability

[C].

creep resistance

[D].

tensile strength

Answer: Option A

Explanation:

No answer description available for this question.

Question: A good abrasive
[A].

should be friable.

[B].

should have low refractoriness.

[C].

is made up of large size of crystals.

[D].

should be soft.

Answer: Option A

Explanation:

No answer description available for this question.

Question: With increase in carbon percentage in steel, its
[A].

yield stress decreases.

[B].

elongation percent increases.

[C].

tensile strength increases.

[D].

impact strength increases.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Out of the following, the joint produced by __________ has the lowest strength.
[A].

soldering

[B].

welding

[C].

brazing

[D].

rivetting

Answer: Option A

Explanation:

No answer description available for this question.

Question: The process of removal of scale formed during hot rolling of steel is termed as
[A].

descaling

[B].

shot blasting

[C].

pickling

[D].

skimming

Answer: Option C

Explanation:

No answer description available for this question.