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Materials and Construction

Materials and Construction
Spark plugs, ignition tubes and electrodes are made of nickel __________ alloys.

Iron
Copper
Manganese
Beryllium

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Materials and Construction
For handling sulphuric acid of 95% strength, the suitable material of construction for pipes is

Nickel
Stainless steel
Cast iron
Aluminium

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Materials and Construction
Which of the following is the hardest?

Pearlite
Ferrite
Austenite
Cementite

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Materials and Construction
Maximum permissible sulphur content in steel is __________ percent.

0.055
0.015
0.805
0.505

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Materials and Construction
Which metal is protected by the layer of its own oxide?

Calcium
Aluminium
Iron
Silver

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Materials and Construction
Chlorination of benzene is done to produce benzene hexachloride (a pesticide) in a photochemical reactor lined with

PVC
Lead or glass
Karbate
Fireclay bricks

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