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Engineering Materials Practice Quiz

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Engineering Materials Practice Quiz

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Materials of Engineering primarily is the selection of right and appropriate materials for the application in which the engineered part is being used. Engineering materials are metals and non - metals. Engineers will select a particular grade of material based on its properties such as malleability or tensile strength. Engineering Materials Practice Quiz is an important topic in Mechanical Engineering subjects.

Engineering mechanics Practice Quiz article, is exceedingly important for candidates preparing for RRB Junior Engineer Recruitment, SSC Junior Engineer Recruitment, UPSC (Civil services exam including IAS) and all Mechanical Engineering Exams and etc. In this article, candidates can find different types of questions with solution related to the Engineering Materials topic. The article Engineering Materials Practice Quiz, will assist the students understanding of the type of questions expected from the topic Engineering Materials.

shape Quiz

1. Ability of a material to resist deformation due to stress is called
    A. toughness B. stiffness C. plasticity D. hardness

Answer - Option B
2. Ability of material to resist fracture due to high impact load is called
    A. toughness B. stiffness C. plasticity D. hardness

Answer - Option A
3. Etching solution used for medium and high carbon steel, pearlitic steel and cast iron, is
    A. nital-2% [latex]HN{O}_{3}[/latex] in ethyl alcohol B. picral - 5% picric acid and ethyl alcohol C. 1% hydrofluoric acid in water D. 50% [latex]N{H}_{2}OH[/latex] and 50% water

Answer - Option B
4. Property of material due to which they can be drawn into wires, is called
    A. elasticity B. plasticity C. stiffness D. ductility

Answer - Option D
5. Ability of a material to undergo large permanent deformations in tension, is called
    A. toughness B. stiffness C. plasticity D. hardness

Answer - Option C
6. Ability of a material to retain the deformation permanently is called
    A. stiffness B. ductility C. hardness D. plasticity

Answer - Option D
7. Ability of a material to resist penetration by another material, is called
    A. stiffness B. ductility C. hardness D. plasticity

Answer - Option C
8. Property of material due to which it can be rolled or hammered into thin sheets is called
    A. brittleness B. ductility C. malleability D. fatigue

Answer - Option C
9. Property of material due to which it breaks with little permanent distortion is called
    A. brittleness B. ductility C. malleability D. fatigue

Answer - Option A
10. Property of material due to which recovery after unloading is complete but instantaneous, is called
    A. elasticity B. plasticity C. an elasticity D. en-elasticity

Answer - Option C
11. With increase in the hardness of material elastic recovery after deformation
    A. increases B. decreases C. remains same D. none of these

Answer - Option A
12. Ability of a material to undergo large permanent deformation in compression, is known as
    A. ductility B. malleability C. brittleness D. hardness

Answer - Option B
13. Ability of a material to exhibit considerable elastic recovery on release of load, is known as
    A. toughness B. stiffness C. resilience D. hardness

Answer - Option C
14. Silicon when added to copper increases its
    A. machine ability B. brittleness C. electrical conductivity D. hardness and strength

Answer - Option D
15. Stress-concentration occurs when a body is subjected to
    A. extensive stress B. non-uniform stress C. reverse stress D. fluctuating stress

Answer - Option B
16. Metals which can be easily drawn into wire is
    A. tin B. copper C. lead D. zinc

Answer - Option A
17. When a body recovers its original dimensions on removing the load, it is called
    A. elastic B. plastic C. brittle D. none of these

Answer - Option A
18. Amount of external energy required to deform an elastic body is called
    A. elastic energy B. plastic energy C. strain energy D. none of these

Answer - Option C
19. A metal which is brittle in tension can become ductile
    A. in the presence of notches B. under hydro-static compression C. in the presence of embrittle-ment agents such as hydrogen D. all of these

Answer - Option B
20. A metal which is ductile in tension can become brittle
    A. in the presence of notches B. under hydro-static compression C. in the presence of embrittle-ment agents such as hydrogen D. All of these

Answer - Option A
1. Nit-riding is a process for
    A. normalizing B. annealing C. case hardening D. tempering

Answer - Option C
2. Process of reheating the hardened steel to some temperature below theoretical range, followed by any rate of cooling is called
    A. normalizing B. annealing C. tempering D. spheroidising

Answer - Option C
3. Process in which steel is heated in a molten salt bath having temperature 250°C to 500°C above the critical temperature, then quenched into a molten bath at sufficient rate between 200°C to 450°C, held there for sufficient time and cooled to room temperature, is called
    A. normalizing B. annealing C. tempering D. spheroidising

Answer - Option B
4. Heat treatment process used to soften hardened steel is
    A. normalizing B. annealing C. tempering D. spheroidising E.

Answer - Option C
5. The process in which the steel is heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C is called
    A. normalizing B. annealing C. tempering D. spheroidising E.

Answer - Option D
6. Heat treatment process usually applied to high carbon tool steel which are difficult to machine is
    A. normalizing B. annealing C. tempering D. spheroidising

Answer - Option D
7. Heat treatment process which decreases hardness and tensile strength but increases mach-inability is
    A. normalizing B. annealing C. tempering D. spheroidising

Answer - Option D
8. The process in which steel is heated at about C, where the structure consists of entirely austenite, then it is cooled suddenly at a temperature of about 250°C to 525°C is called
    A. normalizing B. annealing C. hardening D. austempering E.

Answer - Option D
9. Sorbite is obtained by
    A. annealing of steel B. quenching steel during transformation C. both (a) and (b) D. none of these

Answer - Option A
10. Age hardening generally applied to
    A. cast iron B. high alloy steel C. alloys of aluminium, magnesium, nickel etc. D. alloys of chromium, silicon etc

Answer - Option C
1. Age hardening is related to
    A. cast iron B. duralumin C. stainless steel D. brass

Answer - Option B
2. Induction hardening have high
    A. voltage B. current C. frequency D. power factor

Answer - Option C
3. Induction hardening is the process of
    A. uniform hardening B. hardening the core C. selective hardening D. hardening surface for wear resistance

Answer - Option D
4. In flame hardening, the flame used is of
    A. oil burner B. gas burner C. oxy-acetylene D. none of these

Answer - Option C
5. Constituents of Haynes's satellite, having super performance than HSS are
    A. tungsten, chromium and vanadium B. tungsten, chromium and cobalt C. tungsten, molybdenum and cobalt D. cobalt, nickel and aluminium

Answer - Option C
6. A reversible changes in an atomic structure of the metal with a corresponding change in the properties of steel, is called
    A. allotropic B. poly-tropic C. critical point D. none of these

Answer - Option A
7. Steel can be hardened only if it is heated above
    A. lowest critical temperature B. middle critical temperature C. highest critical temperature D. none of these

Answer - Option A
8. When a steel containing less than 0.8% carbon is cooled slowly from temperature above or within the critical range, it contains
    A. ferrite mainly B. pearlite mainly C. fer-rite and pearlite D. pearlite and cementite

Answer - Option A
9. Temperature at which the change ends on heating the steel, is called
    A. lower critical temperature B. upper critical temperature C. point of recalescence D. none of these

Answer - Option B
10. Steel containing 0.8% carbon has
    A. no critical point B. one critical point C. two critical points D. three critical points

Answer - Option B
1. Lower critical point for all steels is
    A. 600° C B. 723° C C. 900° C D. 91400° C

Answer - Option B
2. Gamma iron exists in the temperature range of
    A. 300°C to 600°C B. 600°C to 900°C C. 900°C to 1400°C D. 1400°C to 1530°C

Answer - Option C
3. Alpha iron exists at
    A. below 768°C B. between 768°C to 900°C C. between 900°C to 1400° D. between 1400°C to 1530°C

Answer - Option A
4. Knoop hardness number (KHN) is equal to
    A. [latex]\frac{P}{LC}[/latex] B. [latex]\frac{P}{{L}^{2}C}[/latex] C. [latex]\frac{2P}{LC}[/latex] D. [latex]\frac{2P}{{L}^{2}C}[/latex]

where, L = length of long diagonal, mm
C = constant related to length of projected area
Answer - Option B
5. Delta iron exists in the temperature range of
    A. 0°C to 768°C B. 768°C to 900°C C. 900°C to 1400°C D. 1400°C to 1530°C

Answer - Option D
6. Alpha ([latex]\alpha[/latex]) iron
    A. has body centred atomic arrangement B. is commonly called ferrite C. is magnetic D. all of these

Answer - Option D
7. Vicker's Pyramid Number (VPN) is equal to
    A. [latex]\frac{2Psin0}{{d}^{2}C}[/latex] B. [latex]\frac{Psin0}{{d}^{2}C}[/latex] C. [latex]\frac{\frac{Psin0}{2}}{{d}^{2}C}[/latex] D. None of these

where,P = load in kg
0 = angle between opposite faces of diamond pyramid
Answer - Option C
8. When the atoms are arranged regularly in some direction but not in others, in a material, it is called
    A. amorphous material B. mesomorphous material C. crystalline structure D. none of these

Answer - Option B
9. When the atoms are arranged in definite and orderly manner in a material, it is called
    A. amorphous material B. mesomorphous material C. crystalline structure D. none of these

Answer - Option C
10. Brinell hardness number is equal to
    A. [latex]\frac{P}{D - \sqrt{({D}^{2} - {d}^{2})}}[/latex] B. [latex]\frac{5P}{D - \sqrt{({D}^{2} - {d}^{2})}}[/latex] C. [latex]\frac{2P}{D - \sqrt{({D}^{2} - {d}^{2})}}[/latex] D. [latex]\frac{2P}{D(D - \sqrt{({D}^{2} - {d}^{2})}})[/latex]

where d = diameter of the impression.
Answer - Option D
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