Engineering Materials | Mechanical Engineering

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

Byadmin September 14, 2022

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.

Engineering Materials

Delta iron occurs at temperature of_______________?

Delta iron occurs at temperature of_______________?

A. room temperature
B. above melting point
C. between 1400°C and 1539°C
D. between 910°C and 1400°C
E. none of the above

Read More Delta iron occurs at temperature of_______________?
Hydraulics and Fluid Mechanics | Mechanical Engineering

In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be

Question: In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be
[A].

running full
[B].
running free
[C].
partially running full
[D].
partially running free

Answer: Option B

Explanation:

No answer description available for this question.

Read More In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be
Engineering Mechanics | Mechanical Engineering

A force acting in the opposite direction to the motion of the body is called force of friction.

Question: A force acting in the opposite direction to the motion of the body is called force of friction.
[A].

Agree
[B].
Disagree

Answer: Option A

Explanation:

No answer description available for this question.

Read More A force acting in the opposite direction to the motion of the body is called force of friction.
Automobile Engineering | Mechanical Engineering

If a tyre is designated as 175/65 R14 82 S, then the aspect ratio for the tyre is

Question: If a tyre is designated as 175/65 R14 82 S, then the aspect ratio for the tyre is
[A].

175
[B].
65
[C].
14
[D].
82

Answer: Option B

Explanation:

No answer description available for this question.

Read More If a tyre is designated as 175/65 R14 82 S, then the aspect ratio for the tyre is
Compressors | Gas Dynamics and Gas Turbines | Mechanical Engineering

In a single stage, single acting reciprocating air compressor, without clearance, the workdone on the air during isentropic compression is __________ the heat required to raise the temperature of air from T1 to T2 at a constant pressure.

Question: In a single stage, single acting reciprocating air compressor, without clearance, the workdone on the air during isentropic compression is __________ the heat required to raise the temperature of air from T1 to T2 at a constant pressure.
[A].

equal to
[B].
less than
[C].
greater than

Answer: Option A

Explanation:

No answer description available for this question.

Read More In a single stage, single acting reciprocating air compressor, without clearance, the workdone on the air during isentropic compression is __________ the heat required to raise the temperature of air from T1 to T2 at a constant pressure.
Engineering Materials

Preheating is essential in welding ___________________?

Preheating is essential in welding ___________________?

A. cast iron
B. high speed steel
C. all non-ferrous materials
D. all of the above
E. none of the above

Read More Preheating is essential in welding ___________________?

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