A specimen of aluminium metal when observed under microscope shows __________________?

Byadmin January 29, 2019August 16, 2021

A specimen of aluminium metal when observed under microscope shows __________________?

A. B.C.C. crystalline structure
B. F.C.C. crystal structure
C. H.C.P. structure
D. a complex cubic structure
E. orthorhombic crystalline structure

Engineering Materials | Mechanical Engineering

Wrought iron

Question: Wrought iron
[A].

is a ductile material
[B].
can be easily forged or welded
[C].
cannot stand sudden and excessive shocks
[D].
all of these

Answer: Option D

Explanation:

No answer description available for this question.

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Engineering Materials | Mechanical Engineering

In normalising process, the hypo-eutectiod steel is heated from 30° C to 50° C above the upper critical temperature and then cooled in still air.

Question: In normalising process, the hypo-eutectiod steel is heated from 30° C to 50° C above the upper critical temperature and then cooled in still air.
[A].

True
[B].
False

Answer: Option A

Explanation:

No answer description available for this question.

Read More In normalising process, the hypo-eutectiod steel is heated from 30° C to 50° C above the upper critical temperature and then cooled in still air.
Engineering Materials

Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio_________________?

Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio_________________?

A. 50 : 50
B. 30 : 70
C. 70 : 30
D. 40 : 60
E. 60 : 40

Read More Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio_________________?
Engineering Materials | Mechanical Engineering

Age hardening is related to

Question: Age hardening is related to
[A].

duralumin
[B].
brass
[C].
copper
[D].
silver

Answer: Option A

Explanation:

No answer description available for this question.

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Engineering Materials

Cast iron has_________________?

Cast iron has_________________?

A. high tensile strength
B. its elastic limit close to the ultimate breaking strength
C. high ductility
D. all of the above
E. none of the above

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Engineering Materials | Mechanical Engineering

For a steel containing 0.8% carbon

Question: For a steel containing 0.8% carbon
[A].

there is no critical point
[B].
there is only one critical point
[C].
there are two critical points
[D].
there can be any number of critical points

Answer: Option B

Explanation:

No answer description available for this question.

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