Engineering Materials Online Quiz - ObjectiveBooks
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Engineering Materials Online Quiz

Quiz Questions

01. In normalising process, the hypereutectoid steel is heated from 30° C to 50° C above the upper critical temperature and then cooled in still air.

02. An eutectoid steel consists of

03. Cast iron is used in those parts which are subjected to shocks.

04. The upper critical point varies according to the carbon content in steel.

05. The acidic Bessemer process is suitable for producing steel from pig iron containing large quantities of phosphorus.

06. Phosphorus is added in low carbon steels to raise its yield point.

07. Pearlite is a combination of 87% ferrite and 13% cementite.

08. The aluminium alloy, mainly used, for anodized utensil manufacture, is

09. The alloy, mainly used for corrosion resistance in stainless steels is

10. Corrosion resistance of steel is increased by adding nickel and chromium.

11. An aluminium alloy with 11% silicon is used for making engine pistons by die casting technique.

12. The toughness of a material __________ when it is heated.

13. Grey cast iron is ________ than white cast iron.

14. The stiffness is the ability of a material to resist deformation under stress.

15. In a unit cell of close packed hexagonal space lattice, there are twenty four atoms.

16. The steel scrap added in the charge of cupola controls the grade of cast iron produced.

17. Iron-carbon alloys containing carbon ________ 4.3% are known as hypereutectic cast irons.

18. Brass (alloy of copper and zinc) is an example of

19. The compressive strength of cast iron is ________ that of its tensile strength.

20. Dislocations in materials refer to the following type of defect

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