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Engineering Materials

Engineering Materials
Heavy duty leaf and coil springs contain carbon of the following order

0.002
0.01
0.008
0.005

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Engineering Materials
Chilled cast iron has

Graphite as its basic constituent of composition
No graphite
A low percentage of graphite
A very high percentage of graphite

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Engineering Materials
The cupola is used to manufacture

Wrought iron
Cast iron
Steel
Pig iron

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Engineering Materials
Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio

50 : 20 : 10 : 20
40 : 30 : 20 : 10
50 : 20 : 20 : 10
30 : 20 : 30 : 20

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Engineering Materials
Taps dies and drills contain carbon

Above 1%
Below 1%
Below 0.5%
Above 2.2%

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Engineering Materials
Which of the following display properties similar to that of steel?

Blackheart cast iron
None of these
Whiteheart cast iron
Both (A) and (B)

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