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Material science MCQs

Mechanical Engineering Objective Questions

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57. German silver is an alloy of
A. Silver and some impurities
B. Refined silver
C. Nickel, copper and zinc
D. Nickel and copper
Discussion
58. Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is
A. Silver metal
B. Invar alloy
C. Hastelloy
D. Monel metal
Discussion
59. A cold chisel is made of
A. Mild steel
B. Cast iron
C. H.S.S.
D. High carbon
Discussion
60. An engineer's hammer is made of
A. Cast iron
B. Forged steel
C. Mild steel
D. High carbon steel
Discussion
61. Inconel is an alloy of
A. Nickel, chromium and iron
B. Nickel, copper
C. Nickel, chromium
D. Nickel, zinc
Discussion
62. By severely deforming a metal in a particular direction it becomes
A. Ductile
B. Anisotropic
C. Homogeneous
D. Isotropic
Discussion
63. Solder is an alloy consisting of
A. Tin, antimony, copper
B. Tin and copper
C. Tin and lead
D. Lead and zinc
Discussion

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