Exercise: Engineering Materials

Questions for: Engineering Materials

An alloy of copper, tin and zinc is known as
A:
brass
B:
bronze
C:
gun metal
D:
muntz metal
Answer: C
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The purpose of heat treatment is to
A:
relieve the stresses set up in the material after hot or cold working
B:
modify the structure of the material
C:
change grain size
D:
any one of these
Answer: D
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The ability of a material to resist fracture due to high impact loads, is called
A:
strength
B:
stiffness
C:
toughness
D:
brittleness
Answer: C
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The charge of the blast furnace consists of
A:
calcined ore (8 parts ), coke (4 parts) and limestone (1 part)
B:
calcined ore (4 parts), coke (1 part) and limestone (8 parts)
C:
calcined ore (1 part), coke (8 part) and limestone (4 parts)
D:
calcined ore, coke and limestone all in equal parts
Answer: A
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Tin base white metals are used where the bearings are subjected to
A:
large surface wear
B:
elevated temperatures
C:
light load and pressure
D:
high pressure and load
Answer: D
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