Molybdenum
Phosphorus
Chromium
Vanadium
✅ The correct answer is option B.
Materials and Construction MCQs
Lead
Is the hardest metal in common use
Is the lightest metal in common use
Can not be scratched by finger nails
Can not be work hardened
✅ The correct answer is option D.
Among the tin containing alloys, __________ consumes the maximum amount of tin.
Solder
White metal
Pewter matal
Bronzes
✅ The correct answer is option A.
A metallic alloy in which one of the constituent metal is __________ , is called an amalgam.
Zinc
Mercury
Lead
Tin
✅ The correct answer is option B.
Softness of silver can be converted into hardness by alloying it with small quantity of
Copper & nickel
Zinc
Aluminium
Tin
✅ The correct answer is option A.
Urea autoclave is made of
Cast iron
Refractory blocks
Stainless steel
Lead lined steel
✅ The correct answer is option C.
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.
Hardened steel is softened by
Normalising
Tempering
Annealing
Carburising
✅ The correct answer is option B.
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.
Which of the following alloys does not contain nickel?
Chlorinet – 2 alloy
Monel
Inconel
Babbit metal
✅ The correct answer is option D.