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Engineering Materials

Engineering Materials
German silver contains

2% silver
No silver
1% silver
5% silver

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Engineering Materials
Balls for ball bearings are made of

Stainless steel
Cast iron
Mild steel
Carbon-chrome steel

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Engineering Materials
Which is false statement about properties of aluminium?

Fatigue strength is not high
Creep strength limits its use to fairly low temperatures
Wear resistance is very good
Modulus of elasticity is fairly low

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Engineering Materials
Slow plastic deformation of metals under a constant stress is known as

Fatigue
Endurance
Plastic deformation
Creep

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Engineering Materials
Drop forging dies contain carbon of the order of

0.6 to 0.7%
0.1 to 0.2%
0.7 to 0.9%
0.25 to 0.5%

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Engineering Materials
Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio

2.9375
2.1180555555556
30 : 70
40 : 60

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MORE MCQ ON Engineering Materials

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