Chemical Engineering Basics

Question: Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm.
[A].

10

[B].

20

[C].

30

[D].

40

Answer: Option D

Explanation:

No answer description available for this question.

Question: Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the __________ method.
[A].

diminishing balance

[B].

sinking fund

[C].

multiple straight line

[D].

sum of the years digit

Answer: Option A

Explanation:

No answer description available for this question.

Question: Break even point represents the condition, when the company runs under no profit no loss condition. In break even analysis, total cost comprises of fixed cost
[A].

only.

[B].

plus variable cost.

[C].

plus overhead cost.

[D].

plus selling expenses.

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ joint is mostly used for joining pipes carrying water at low pressure.
[A].

Nipple

[B].

Socket

[C].

Union

[D].

Bell and spigot

Answer: Option B

Explanation:

No answer description available for this question.

Question: Cast iron compared to steel is better in
[A].

ductility

[B].

strength

[C].

malleability

[D].

fluidity & castability

Answer: Option D

Explanation:

No answer description available for this question.

Question: Maximum carbon content in cast iron is __________ percent.
[A].

3.8

[B].

4

[C].

4.3

[D].

4.6

Answer: Option C

Explanation:

No answer description available for this question.

Question: As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint is the __________ joint.
[A].

butt

[B].

lap

[C].

welded

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: An “orange peel” effect is observed
[A].

as a defect during metal casting/ welding.

[B].

during deep drawing of metallic sheet having large grain size.

[C].

during faulty heat treatment of steel.

[D].

during extrusion of metal through a die.

Answer: Option B

Explanation:

No answer description available for this question.

Question: The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the
[A].

work hardening.

[B].

Bauschinger effect.

[C].

creeping effect.

[D].

stress recovery effect.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Out of the following materials, the one which generally exhibits an yield point is
[A].

hard bronze

[B].

soft brass

[C].

cold rolled mild steel

[D].

hot rolled mild steel

Answer: Option D

Explanation:

No answer description available for this question.