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Engineering Materials

An alloy steel which is work hardenable and which is used to make the blades of bulldozers, bucket wheel excavators and other earth moving equipment contain iron, carbon and

Engineering Materials, Mechanical Engineering /
Question: An alloy steel which is work hardenable and which is used to make the blades of bulldozers, bucket wheel excavators and other earth moving equipment contain iron, carbon and
[A].

chromium

[B].

silicon

[C].

manganese

[D].

magnesium

Answer: Option C

Explanation:

No answer description available for this question.

An alloy steel which is work hardenable and which is used to make the blades of bulldozers, bucket wheel excavators and other earth moving equipment contain iron, carbon and Read More »

Engineering Materials, Mechanical Engineering

In high speed steels, manganese is used to tougher the metal and to increase its

Engineering Materials, Mechanical Engineering /
Question: In high speed steels, manganese is used to tougher the metal and to increase its
[A].

yield point

[B].

critical temperature

[C].

melting point

[D].

hardness

Answer: Option B

Explanation:

No answer description available for this question.

In high speed steels, manganese is used to tougher the metal and to increase its Read More »

Engineering Materials, Mechanical Engineering

A carbon steel having Brinell hardness number 100 should have ultimate tensile strength closer to

Engineering Materials, Mechanical Engineering /
Question: A carbon steel having Brinell hardness number 100 should have ultimate tensile strength closer to
[A].

100 N/mm2

[B].

200 N/mm2

[C].

350 N/mm2

[D].

1000 N/mm2

Answer: Option C

Explanation:

No answer description available for this question.

A carbon steel having Brinell hardness number 100 should have ultimate tensile strength closer to Read More »

Engineering Materials, Mechanical Engineering

Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?

Engineering Materials, Mechanical Engineering /
Question: Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?
[A].

Sulphur

[B].

Phosphorus

[C].

Manganese

[D].

Silicon

Answer: Option C

Explanation:

No answer description available for this question.

Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities? Read More »

Engineering Materials, Mechanical Engineering