Which of the following pairs regarding the effect of alloying elements in steels are not matched correctly ?

by
Question: Which of the following pairs regarding the effect of alloying elements in steels are not matched correctly ?
[A].

Cobalt: It contributes to rerl hardness by hardening ferrite.

[B].

Molybdenum: It forms abrasion resisting particles.

[C].

Phosphorous: It improves machinability in free cutting steels.

[D].

Silicon: It reduces oxidation resistance.

Answer: Option A

Explanation:

No answer description available for this question.

A child could not have done this mischief.

by
Question: A child could not have done this mischief.
[A].

This mischief could not be done by a child.

[B].

This mischief could not been done by a child.

[C].

This mischief could not have been done by a child.

[D].

This mischief a child could not have been done.

Answer: Option C

Explanation:

No answer description available for this question.

A’s son B is married with C whose sister D is married to E the brother of B. How D is related to A?

by
Question: A’s son B is married with C whose sister D is married to E the brother of B. How D is related to A?
[A].

Sister

[B].

Daughter’s-in-law

[C].

Sister-in-law

[D].

Cousin

Answer: Option B

Explanation:

Since E is the brother of B

Therefore, A is the father of E

but D is the wife of E.

Hence, D is the daughter-in-law of A.

A steam carraying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will

by
Question: A steam carraying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will
[A].

increase.

[B].

decrease.

[C].

remain unaffected.

[D].

may increase or decrease; depends on the thickness of each layer.

Answer: Option C

Explanation:

No answer description available for this question.

If A + B means A is the father of B; A – B means A is the brother B; A % B means A is the wife of B and A x B means A is the mother of B, which of the following shows that M is the maternal grandmother of T?

by
Question: If A + B means A is the father of B; A – B means A is the brother B; A % B means A is the wife of B and A x B means A is the mother of B, which of the following shows that M is the maternal grandmother of T?
[A].

M x N % S + T

[B].

M x N – S % T

[C].

M x S – N % T

[D].

M x N x S % T

Answer: Option A

Explanation:

M x N → M is the mother of N

N % S → N is the wife of S

and S + T → is the father of T.

Hence, M is the maternal grandmother of T.

He is said to be very rich.

by
Question: He is said to be very rich.
[A].

He said he is very rich.

[B].

People say he is very rich.

[C].

He said it is very rich.

[D].

People say it is very rich.

Answer: Option B

Explanation:

No answer description available for this question.