Mechanical Engineering Questions And Answers :: Engineering Materials: part7



Mechanical Engineering : Engineering Materials QUESTIONS AND ANSWERS :: part7 : 21 to 25

Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

21.Monel metal contains

63 to 67% nickel and 30% copper
88% copper and 10% tin and rest zinc
alloy of tin, lead and cadmium
malleable iron and zinc
none of the above.

22.Admiralty gun metal contains

63 to 67% nickel and 30% copper
88% copper, 10% tin and rest zinc
alloy of tin, lead and cadmium
iron scrap and zinc
none of the above.

23.Addition of lead and bismuth to aluminium results in

improvement of casting characteristics
improvement of corrosion resistance
one of the best known age and precipitation-hardening systems
improving machinability
none of the above.

24.Perminvar alloy having constant permeability is an alloy of

nickel, copper and iron
nickel, copper and zinc
copper, nickel and antimony
iron, zinc and bismuth
antimony, copper and zinc.

More Engineering Materials QUESTIONS AND ANSWERS available in next pages

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