August 2022

Question: Mho’s scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.
[A].

scratch

[B].

indentation

[C].

dynamic

[D].

rebound

Answer: Option A

Explanation:

No answer description available for this question.

Question: Grey cast iron (used for making underground water pipes and manhole covers) as compared to steel has higher
[A].

ductility

[B].

impact strength

[C].

machinability

[D].

melting point

Answer: Option C

Explanation:

No answer description available for this question.

Question: Wrought iron is never shaped by
[A].

casting

[B].

cold working

[C].

forging

[D].

welding

Answer: Option A

Explanation:

No answer description available for this question.

Question: Boiler draught of 10 mm water column is equivalent to
[A].

1 kgf/m2

[B].

10 kgf/m2

[C].

10 kgf/mm2

[D].

1 kgf/mm2

Answer: Option B

Explanation:

No answer description available for this question.

Question: Aromatics are desired constituents of
[A].

lubricating oil

[B].

diesel

[C].

kerosene

[D].

petrol

Answer: Option D

Explanation:

No answer description available for this question.

Question: __________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction.
[A].

Packed

[B].

Bubble

[C].

Spray

[D].

Tray

Answer: Option C

Explanation:

No answer description available for this question.

Question: Boiler tube size is specified by its thickness and __________ diameter.
[A].

outside

[B].

inside

[C].

mean

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: A material subjected __________ must have high resilience.
[A].

shockloading

[B].

vibration

[C].

fatigue

[D].

tension

Answer: Option A

Explanation:

No answer description available for this question.

Question: Batch process is preferred over continuous process, when the
[A].

product yields and quality can not be achieved in continuous process, because of long residence time.

[B].

sales demand of product is not steady.

[C].

same equipment can not be used for several processes of the same nature.

[D].

all (a), (b) & (c)

Answer: Option B

Explanation:

No answer description available for this question.

Question: Large diameter shafts are manufactured by
[A].

hot rolling.

[B].

cold drawing.

[C].

casting and turning to size.

[D].

forging and turning to size.

Answer: Option D

Explanation:

No answer description available for this question.