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Materials and Construction

Materials and Construction
Which has the maximum melting point out of the following?

Stainless steel
Wrought iron
Steel
Cast iron

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Materials and Construction
Which one occupies the lowermost position in the electromotive series of metals?

Aluminium
Zinc
Alkali metals (K, Na, Li)
Noble metals (Ag, Pt, Au)

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Materials and Construction
Nickel is a __________ material.

Ferromagnetic
Paramagnetic
None of these
Diamagnetic

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Materials and Construction
The loss of strength in compression which occurs, when there is a gain of strength in tension due to over loading is called

Relaxation
Bauschinger effect
Hooke's effect
Hysterisis

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Materials and Construction
In drop forging process, the forging is done by dropping the __________ at high velocity.

Weight on hammer
Die with hammer
Hammer
Workpiece

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Materials and Construction
A hardened steel essentially contains

Troostite
Sorbite
None of these
Martensite

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