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Materials and Construction

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

Chromium
Copper
Platinum
Constantan

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Materials and Construction
Wood metal is not used for making

Casting for dental work
Storage tank for storing brine and caustic soda
Fusible safety plug for pressure cooker
Soft solder

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Materials and Construction
Which of the following is not an alloy of nickel and chromium?

Inconel
Duralumin
Hastealloy
Nimonic alloys

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Materials and Construction
The impure iron (pig iron) that is tapped out from blast furnace contains about __________ percent carbon.

0.2
2
8
4

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Materials and Construction
'Hypersil' is a __________ steel.

Molybdenum
High speed
Tungsten
Silicon

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Materials and Construction
Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system?

Mild steel and stainless steel
High silicon iron, silicon rubber, Kel-F and teflon
Cast iron, tin and aluminium
Copper, nickel and monel

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