MATERIALS FOR ENGINEERING
Multiple Choice Questions
1. Which of the following are the mechanical properties of material?
(a) Hardness (b) Specific heat
(c) Fatigue (d) Both (a) and (c)
2. Which of the following are the thermal properties of materials?
a) Fatigue (b) Specific heat
(c) Thermal conductivity (d) Both (b) and (c)
3. The ability of material to sustain loads without failure is known as
(a) Mechanical strength (b) Impact strength
(c) Hardness (d) Brittleness
4. The ability of a material to resist elastic deflection is known as
(a) Fatigue (b) Stiffness
(c) Creep (d) Hardness
5. When a material sustains steady loads for long periods of time, the material may
continue to deform until it may tend to fracture under the same load. The phenomenon is
known as
(a) Creep (b) Hardness
(c) Impact strength (d) Fatigue
6. The properties of material to resist penetration by another material is known as
(a) Impact strength (b) Hardness
(c) Fatigue (d) Resilience
7. Which of the following is ferrous material
(a) Aluminium (b) Steel
(c) Copper (d) None
8. Which of the following is non-ferrous material
(a) Rubber (b) Cast Iron
(c) Copper (d) Leather
9. Body centered cubic structure has how many atoms at the corners
(a) 8 (b) 1
(c) 9 (d) 6
10. Face centered cubic structure has how many atoms at the faces
(a) 1 (b) 4
(c) 6 (d) 8
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11. The coordination number of BCC structure is
(a) 8 (b) 4
(c) 6 (d) 1
12. The coordination number of HCP structure is
(a) 9 (b) 8
(c) 12 (d) 14
13. The Atomic Packing Factor of HCP structure is
(a) 0.48 (b) 0.68
(c) 0.34 (d) 0.74
14. The Atomic Packing Factor of BCC structure is
(a) 0.74 (b) 0.68
(c) 0.34 (d) 0.78
15. Fine polishing of specimen is done by
(a) Diamond powder (b) Alumina powder
(c) Steel powder (d) None
16. Which of the following cast iron contains carbon in cementite form
(a) White cast iron (b) Grey cast iron
(c) Nodular cast iron (d) Malleable cast iron
17. Which of the following cast iron contains carbon in graphite flakes form
(a) White cast iron (b) Grey cast iron
(c) Nodular cast iron (d) Malleable cast iron
18. Steel can be manufactured in which furnace
(a) Cupola (b) Pudling
(c) Bessemer (d) None
19. Which of the following is also called as Mild steel
(a) Low carbon steel (b) Medium carbon steel
(c) High carbon steel (d) None
20. Which of the following is used to manufacture Razor blades
(a) Low carbon steel (b) Medium carbon steel
(c) High carbon steel (d) None
21. The steel in which elements other then carbon are added in sufficient quantity in order
to obtain special properties is known as
(a) Spring Steel (b) Stainless steel
(c) Alloy Steel (d) Plain carbon steel
22. The steel developed for making tools and dies which are required for cutting, shaping,
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forming and blanking of materials is known as
(a) Spring Steel (b) Stainless steel
(c) Alloy Steel (d) Tool steel
23. When 11.5% or more chromium is added to iron, a fine film of chromium oxide forms
spontaneously on the surface exposed to air to protect from corrosion, such steel is known
as
(a) Spring Steel (b) Stainless steel
(c) Alloy Steel (d) Tool steel
24. Which steel is used to manufacture Laminated and coil springs for motor car
(a) Spring Steel (b) Stainless steel
(c) Alloy Steel (d) Tool steel
25. Which cast iron is used to make manhole cover plate
(a) White cast iron (b) Grey cast iron
(c) Nodular cast iron (d) Malleable cast iron
26. Which steel is used to make household utensils
(a) Spring Steel (b) Stainless steel
(c) Alloy Steel (d) Tool steel
27. Fe 290 is designation of
(a) Cast iron (b) Plain carbon steel
(c) Alloy Steel (d) None
28. FG is symbol of which cast iron
(a) White cast iron (b) Grey cast iron
(c) Nodular cast iron (d) Malleable cast iron
29. SG is symbol of which cast iron
(a) White cast iron (b) Grey cast iron
(c) Nodular cast iron (d) Malleable cast iron
30. Which of the following is not a stainless steel
(a) Ferritic (b) Martensitic
(c) Austenitic (d) Hemetite
31. The colour of copper is
(a) Reddish brown (b) Silvery white
(c) Golden yellowish (d) None
32. The colour of brass is
(a) Reddish brown (b) Silvery white
(c) Golden yellowish (d) None
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33. The density of aluminium is
(a) 8.9 (b) 6.8
(c) 2.7 (d) None
34. Which of the following is nickel alloy
(a) Monel Metal (b) Iconel
(c) Nichrome (d) All
35. Brass is an alloy of
(a) Copper-Zinc (b) Copper-Tin
(c) Copper-Aluminium (d) Zinc-Tin
36. Bronze is an alloy of
(a) Copper-Zinc (b) Copper-Tin
(c) Copper-Aluminium (d) Zinc-Tin
37. ……...support the moving parts, such as shaft and spindles of a machine or mechanism
(a) Steel (b) Cams
(c) Bearing (d) None
38. Which alloy is used for making Musical Instruments
(a) Brass (b) Bronze
(c) Nichrome (d) Nimonic
39. Which of the following is not a non-ferrous metal
(a) Nichel (b) Aluminium
(c) Copper (d) Steel
40. Hindustan Aluminum Corporation Ltd has produced which alloy
(a) Duralumin (b) Hindalium
(c) Y-alloy (d) None
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