Materials and Construction
The high expansion metal normally used in the bimetallic thermometer is __________ temperature measurement.

Both A & B
Brass for low
Aluminium for all
Nickel alloys for high

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Materials and Construction
Hastelloy C is a good material of construction in chemical process industry, since it is

Relatively inexpensive although it can be fabricated with some difficulty
Highly corrosion resistant and is readily fabricated
Light and resists attack by acids
Corrosion resistant to most alkalis, particularly because of its coper content

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