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Engineering Materials

Engineering Materials
The steel widely used for motor car crankshafts is

Chrome steel
Nickel-chrome steel
Silicon steel
Nickel steel

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Engineering Materials
Ferromagnetic alpha iron exists in temperature range of

910 to 1440°C
770 to 910°C
1400 to 1539°C
Below 723°C

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Engineering Materials
Constantan an alloy used in thermocouples is an alloy of

Copper and zinc
Copper and nickel
Copper and iron
Copper and tin

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Engineering Materials
Which of the following pipes is least corrosion resistant?

Cast iron
Wrought iron
Mild steel
Brass

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Engineering Materials
Maximum percentage of carbon in austenite is

0.017
0.00025
0.0026
0.008

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Engineering Materials
When steel containing less than 0.8% carbon is cooled slowly from temperatures above or within the critical range, it consists of

Pearlite and cementite
Mainly ferrite
Mainly pearlite
Ferrite and pearlite

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