Q.1
Tin content in bronzes is kept belowdue to their tendency to become _______
  • a) Less conductive
  • b) Brittle
  • c) Radioactive
  • d) Less corrosion resistant
Q.2
Bell bronze is an alloy containing _______
  • a) 78% Cu, 22% Sn
  • b) 95.5% Cu, 3% Sn, 1.5% Zn
  • c) 95% Cu, 3% Si, 1% Mn, 1% Fe
  • d) 75% Cu, 5% Sn, 18% Pb, 2% Ni
Q.3
Which bronze alloy is commonly used as bearing alloy?
  • a) Phosphor bronze
  • b) Silicon bronze
  • c) Aluminum bronze
  • d) Leaded bronze
Q.4
______ is added to aluminum bronze to increase strength and hardness.
  • a) Nickel
  • b) Lead
  • c) Iron
  • d) Silicon
Q.5
Why is silicon bronze classified as a bronze alloy despite having no tin?
  • a) Due to strength
  • b) Due to its color
  • c) Due to ductility
  • d) Good machinability
Q.6
Copper coins are made using ______
  • a) Bell bronze
  • b) Aluminum bronze
  • c) Coinage bronze
  • d) Silicon bronze
Q.7
Alloys containing copper, tin, and zinc are known as ______
  • a) Gunmetal
  • b) Bronze
  • c) Brass
  • d) Cupro-nickel
Q.8
Addition of zinc to gun metals results in ______
  • a) Improved fluidity
  • b) Increased machinability
  • c) Increased castability
  • d) Improved toughness
Q.9
Which of the following is an application of admiralty gunmetal?
  • a) Bearings
  • b) Marine castings
  • c) Hydraulic valves
  • d) Statues
Q.10
Highest corrosion resistance in seawater is found is ______ copper alloys.
  • a) Nickel silver
  • b) Bronze
  • c) Cupronickel
  • d) Gunmetal
Q.11
Monel metal is a type of ______ alloy.
  • a) Nickel silver
  • b) Cupronickel
  • c) Gunmetal
  • d) Sterling silver
Q.12
Which of the following is a heat treated alloy?
  • a) Monel metal
  • b) Cupronickel
  • c) German silver
  • d) K monel
Q.13
Which copper alloy is used for making cutlery?
  • a) German silver
  • b) Cupronickel
  • c) Brass
  • d) Bronze
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