Mechanical Engineering Questions And Answers :: Engineering Materials: part7



Mechanical Engineering : Engineering Materials QUESTIONS AND ANSWERS :: part7 : 6 to 10

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

6.Addition of silicon 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.

7.Which of the following has highest specific strength of all structural materials

magnesium alloys
titanium alloys
chromium alloys
magnetic steel alloys
none of the above.

8.Constantant an alloy used in thermocouples is an alloy of

copper and tin
copper and zinc
copper and iron
copper and nickel
copper and chromium.

9.Muntz metal contains copper and zinc in the ratio of

50 : 50
40 : 60
60 : 40
20 : 80
80 : 20.

10.Permalloy is a

kind of stainless steel
none ferrous alloy
polymer
cutting tool material
nickel and iron alloy having high per�meability.

More Engineering Materials QUESTIONS AND ANSWERS available in next pages

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