Increase in the entropy of a system represents the_____________________?

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: Out of the following, __________ pipe is the least corrosion resistant.
[A].

mild steel

[B].

copper

[C].

wrought iron

[D].

stainless steel

Answer: Option C

Explanation:

No answer description available for this question.

Question: A spark ignition petrol engine has
[A].

throttle valve

[B].

carburettor

[C].

both (a) & (b)

[D].

neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question.

Question: Largest application of laser welding is in __________ welding.
[A].

microspot

[B].

under water

[C].

precious metals

[D].

heavy structure

Answer: Option A

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.