Iron
Silver
Calcium
Aluminium
✅ The correct answer is option D.
Materials and Construction MCQs
Muntz metal is a/an alloys of
Magnesium & tin
Ferrous material
Lead & tin
Copper & zinc
✅ The correct answer is option D.
Invar contains the highest percentage of
Vanadium
Iron
Tungsten
Cobalt
✅ The correct answer is option B.
Carbon percentage is the same in cast iron and
Wrought iron
Pig iron
Mild steel
High silicon (14%) iron
✅ The correct answer is option B.
Which of the following would not be a suitable material of construction for handling aqueous hydrofluoric acid (HF) at 100°C ?
Monel
Stainless steel
Graphite
Kel-F and teflon
✅ The correct answer is option B.
The loss of strength in compression which occurs, when there is a gain of strength in tension due to over loading is called
Bauschinger effect
Hooke’s effect
Hysterisis
Relaxation
✅ The correct answer is option A.
Combination of metals and ceramics are called
Metalloy
Cermets
Pellets
Non-crystalline ceramics
✅ The correct answer is option B.
Which of the following has a very high carbide forming tendency in steels?
Silicon
Chromium
Nickel
Vanadium
✅ The correct answer is option D.
Bog iron used for the adsorption of H?S from coke oven gas is
An intimate mixture of saw dust and iron dust (i.e. moist ferric hydroxide)
Iron impregnated with resin (usually bakelite)
Carbon free iron
None of these
✅ The correct answer is option A.
Polymerisation reactor used in the production of styrene butadiene rubber (SBR) is made of
Stainless steel or glass lined steel
Nickel clad steel
High silicon cast iron
Aluminium
✅ The correct answer is option A.