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Materials and Construction

Materials and Construction
Which of the following is not an alloy of copper?

Admirability gun metal
Muntz metal
Pewter metal
German silver

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Materials and Construction
The damage/deterioration of metals by the __________ action of fluids is called 'erosion'.

Corrosive
Abrasive
Neither A nor B
Both A & B

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Materials and Construction
Vessels made of __________ can be used to store dry chlorine.

Nickel
Thermoplastic materials
None of these
Steel or iron

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Materials and Construction
Common house hold glass (i.e., soda-lime glass) is a/an __________ material.

Amorphous
Partly crystalline
None of these
Fully crystalline

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Materials and Construction
Rubber lined vessels are corroded by the action of

Sulphuric acid (95%)
Chloroform
All of these
Aqua regia

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Materials and Construction
Hardening of steel is not possible unless it is heated __________ critical point.

Between the second & third
Above the lowest
Between the first & second
Above the highest

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