71. |
The main alloying elements high speed steel in order of increasing proportion are
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Answer:
Option (a) |
72. |
According to Indian standard specifications, a plain carbon steel designated by 40 C8 means that the carbon content is
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Answer:
Option (b) |
73. |
18-4-1 high speed steel contains
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Answer:
Option (b) |
74. |
The blade of a power saw is made of
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Answer:
Option (b) |
75. |
The steel widely used for motor car crankshafts is
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Answer:
Option (b) |
76. |
Connecting rod is, usually, made from
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Answer:
Option (c) |
77. |
The silicon steel is widely used for
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Answer:
Option (c) |
78. |
Ball bearings are, usually, made from
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Answer:
Option (d) |
79. |
The cutting tools are made from
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Answer:
Option (d) |