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1. Products used in load carrying applications require more careful testing because? a) Failure can cause loss of life b) Failure can cause loss of use of the product c) Failure can be expensive d) Failure can cause danger to other structures e) All the above 2. Loads which are most likely to cause failure are? a) Single direction b) Multi directional c) Duo directional d) Pahse orientated 3. The general term for a local variation in material continuity is called? a) A discontinuity b) A defect c) An indication d) A crack 4. Where an unacceptable condition occurs in a material, due to local variations in material continuity the term given specifically to this is? a) A discontinuity b) A flaw c) A defect d) Any of the above 5. Which of the following could be considered a discontinuity? a) Crack b) Change of section

Basic Metallurgy

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Metallurgy

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Page 1: Basic Metallurgy

1. Products used in load carrying applications require more careful testing because?

a) Failure can cause loss of lifeb) Failure can cause loss of use of the productc) Failure can be expensived) Failure can cause danger to other structurese) All the above

2. Loads which are most likely to cause failure are? a) Single directionb) Multi directionalc) Duo directionald) Pahse orientated

3. The general term for a local variation in material continuity is called? a) A discontinuityb) A defectc) An indicationd) A crack

4. Where an unacceptable condition occurs in a material, due to local variations in material continuity the term given specifically to this is? a) A discontinuityb) A flawc) A defectd) Any of the above

5. Which of the following could be considered a discontinuity? a) Crackb) Change of sectionc) Drilled holedd) All the above

6. The study and description of a material property related to analytical studies and testing attempts to quantify the toughness of a material is known as? a) Fracture mechanicsb) Acceptance standardsc) Defect reliabilityd) Defect analysis

Page 2: Basic Metallurgy

7. A flaw which is deemed to be unacceptable standards is called? a) A discontinuityb) A defectc) An indicationd) A blemish

8. Which of the following is NOT considered a mode of failure? a) Fractureb) Plastic deformationc) Fatigued) Elastic deformation

9. Brittle fracture is most likely to occur? a) At high temperaturesb) At low temperaturesc) Under cyclic loadingd) In a corrosive environment

10. NDT is generally not carried out on cast irons because? a) Cast iron is inherently free from major defects b) Due to the high carbon content cast iron can withstand high tensile stressesc) It is generally used in applications where the loads are principally comprehensived) The low cost of cast iron cannot justify the high cost of NDT

11. To make by hand, machinery or by agency: To produce by labour and usally machinery, defines the? a) Manufacturing processb) Engineering processc) Machinery processd\0 Technology