Iron or steel
PVC
Ickel
Brass
✅ The correct answer is option A.
Engineering
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1832. Carbon supply in pack carburising process is in the form of
Charcoal
Calcium carbide
Hydrocarbon oil
Graphite
✅ The correct answer is option A.
1833. The impure iron (pig iron) that is tapped out from blast furnace contains about __________ percent carbon.
0.2
2
4
8
✅ The correct answer is option C.
1834. Gun metal is an alloy of
Nickel, tin and copper
Copper, tin and zinc
Copper, phosphorus and nickel
Manganese, phosphorus and nickel
✅ The correct answer is option B.
1835. Urea autoclave is made of
Cast iron
Refractory blocks
Stainless steel
Lead lined steel
✅ The correct answer is option C.
1836. German silver in an alloy of
Copper, nickel and zinc
Copper, aluminium and silver
Silver, zinc and aluminium
Silver, nickel and zinc
✅ The correct answer is option A.
1837. Hardened steel is softened by
Normalising
Tempering
Annealing
Carburising
✅ The correct answer is option B.
1838. The digester of a Gobar gas plant is a
Mild steel drum
Stainless steel vessel
Masonry well
Cast iron vessel
✅ The correct answer is option C.
1839. Which of the following alloys does not contain nickel?
Chlorinet – 2 alloy
Monel
Inconel
Babbit metal
✅ The correct answer is option D.
1840. Cast iron and steel pipes are produced by __________ casting.
Die
Investment
Slush
True centrifugal
✅ The correct answer is option D.