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Materials and Construction

Materials and Construction
Liners of a ball mill are never made of

Alloy steel
Rubber or ceramic material
Lead
Cast iron

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Materials and Construction
Cast iron vessels are not suitable for the storage of

H₂SO₄ (95%) at room temperature
H₂SO₄ (fuming)
Wet SO₂
Freon

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Materials and Construction
Presence of even 0.005% of __________ in copper makes it highly brittle, rendering it useless for wire-drawing.

Bismuth
Antimony
Arsenic
Oxygen

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Materials and Construction
Which of the following is the most prone to atmospheric corrosion?

Silver
Tin
Iron
Copper

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Materials and Construction
Ceramic recuperators are generally made of

Calcium carbide
Fireclay bricks
High alumina bricks
Silicon carbide

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Materials and Construction
Dielectric strength of a material is

A magnetic property
Its capacity to resist the flow of current
Its energy stroage capacity
Its capacity to withstand high voltage

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