Copper
Platinum
Constantan
Chromium
✅ The correct answer is option B.
Materials and Construction MCQs
Material of construction of pipe generally used for conveying water in India is
Stainless steel
Cast iron
Wrought iron
Lead lined steel
✅ The correct answer is option B.
Aqueous nitric acid is stored in __________ vessel.
Plain carbon steel
Stainless steel
Cast iron
Thermosetting plastic material
✅ The correct answer is option C.
Spray dryer for evaporating milk to produce milk powder is made of
Lead lined steel
Stainless steel
Aluminium
Cast iron
✅ The correct answer is option B.
Interchain forces are the weakest in case of
Plastics
Fibres
Elastomers
Both rubber & elastomers
✅ The correct answer is option D.
Platinum and silver are corroded by
Caustic soda solution
Phosphoric acid
Sulphuric acid (10%)
None of these
✅ The correct answer is option D.
A steel alloy containing 36% nickel is called __________ , which has a zero co- efficient of expansion.
Austenitic stainless steel
Heat resisting steel
Invar
High speed steel
✅ The correct answer is option C.
Common house hold glass (i.e., soda-lime glass) is a/an __________ material.
Fully crystalline
Partly crystalline
Amorphous
None of these
✅ The correct answer is option B.
In a plate type heat exchanger, heat transfer plates are never made of
Stainless steel
Cast iron
Titanium
Hastealloy C
✅ The correct answer is option B.
The specific gravity of coal depends mainly on its __________ content.
Carbon
Volatile matter
Ash
Moisture
✅ The correct answer is option C.