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Materials and Construction

Materials and Construction
The purpose of nitriding the steel is to

None of these
Improve its reliability
Soften its surface
Harden its surface

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Materials and Construction
Nickel and molybdenum are the basic constituents of

German silver
Hastealloy
Inconel
Solder

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Materials and Construction
High speed steel should have high

Wear resistance
Hardenability
Both B & C
Toughness

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Materials and Construction
Mild steel is a/an __________ steel.

High carbon
High alloy
Medium carbon
Low carbon

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Materials and Construction
Lead pipes are not safe for carrying drinking water because water containing dissolved oxygen attacks lead thereby forming poisonous Pb (OH)2.

Concentrated H₂SO₄
Acetic acid
None of these
Dilute HCI

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Materials and Construction
Duralumin is an alloy of

Aluminium and nickel
Aluminium, copper and manganese
None of these
Aluminium, nickel and silicon

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