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Materials and Construction

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

Weight on hammer
Workpiece
Die with hammer
Hammer

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Materials and Construction
Which of the following has a very high carbide forming tendency in steels?

Chromium
Nickel
Vanadium
Silicon

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Materials and Construction
Telfon (PTFE) is corroded by

None of these
Hydrochloric acid (10%)
Sulphuric acid
Hydrochloric acid (95%)

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Materials and Construction
Presence of nickel in steel improves its

Corrosion resistance
Cutting ability
All of these
Wear resistance

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Materials and Construction
Which of the following is not a non-ferrous alloy?

Meehanite
Magnalium
Muntz metal
Gun metal

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Materials and Construction
Tank furnace used for melting of glass is made of

Mild steel
Refractory blocks
Cast iron
Stainless steel

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