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Engineering
Mechanical
ME Set-3
Engineering Materials
250

Engineering Materials MCQ with Answers

250) Which of the following alloys does not contain tin

white metal

solder admiralty

fusible metal

phosphor bronze

Answer is:

white metal

Engineering Materials MCQ with Answers

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Related Engineering Materials MCQ with Answers

251) Which is false statement about properties of aluminium

modulus of elasticity is fairly low

wear resistance is very good

fatigue strength is not high

creep strength limits its use to fairly low temperatures

Answer is:

wear resistance is very good

252) Addition of copper to aluminium results in

improvement of casting characteristics

improvement of corrosion resistance

one of the best known age and precipitation-hardening systems

improving machinability

Answer is:

one of the best known age and precipitation-hardening systems

253) Addition of manganese to aluminium results in

improvement of casting characteristics

improvement of corrosion resistance

one of the best known age and precipitation-hardening systems

improving machinability

Answer is:

improvement of corrosion resistance

254) Elinvar, an alloy used in precision instruments, hair springs for watches, etc. contains the following element as principal alloying element

iron

copper

aluminium

nickel.

Answer is:

nickel.

Engineering Materials MCQ with Answers

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