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Materials and Construction

Materials and Construction
Combination of metals and ceramics are called

Pellets
Non-crystalline ceramics
Cermets
Metalloy

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Materials and Construction
Percentage of silver in German silver is

0
10
5
20

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Materials and Construction
The main constituent of carborundum is __________ carbide.

Calcium
Boron
Aluminium
Silicon

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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.

None of these
Dilute HCI
Concentrated H₂SO₄
Acetic acid

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Materials and Construction
In hot wire aneomometer used for gas flow measurement, the wire is normally made of

Platinum
Copper
Chromium
Constantan

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Materials and Construction
The material of construction of bearings is

Steel
Pig iron
Babbit metal
Cast iron

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