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Materials Science A / Materiaalkunde A - 214

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For the image of the Charpy V-notch specimen extraction in the previous question, what is the correct designation for the specimen orientation? / 

Vir die beeld van die Charpy V-kerf-toetsstukekstraksie in die vorige vraag, wat is die korrekte benaming vir die toetsstuk-oriëntasie?

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Watch the video named "Charpy Test 1"

Measure and record the impact energy (energy absorbed) by the notched steel bar test specimen. 

Kyk na die video "Charpy Test 1"

Meet en teken die slagenergie (geabsorbeerde energie) deur die gekerfde staal toetsstuk op.

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Watch the "Video 2: Charpy Test Machine Free Swing". In the "Charpy Test Free Swing Video", why was the reading on the scale of the Charpy test equipment 0J when there is no specimen loaded in the equipment?

Kyk na die "Video 2: Charpy Test Machine Free Swing". Waarom was die lesing op die skaal van die Charpy toets apperaat 0J as daar geen toetstuk in die toerusting gelaai is nie?

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Watch the video named "Charpy Test 2"

Measure and record the impact energy (energy absorbed) by the notched steel bar test specimen. 

Kyk na die video "Charpy Test 2"

Meet en teken die slagenergie (geabsorbeerde energie) deur die gekerfde staal toetsstuk op. 

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Match the type of test with the correct corresponding statement. / Pas die tipe toets by die korrekte ooreenstemmende stelling.

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Given the image of the fracture surface below for the other test specimen, estimate the percentage shear at the fracture surface. Remember to supply the unit next to the numerical value. 

Gegewe die beeld van die fraktuuroppervlak hieronder vir die ander toetsstuk, skat die persentasie skuif op die fraktuuroppervlakOnthou om die eenheid langs die numeriese waarde te verskaf.

 

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Match the two fracture surfaces below of the fractured notched bars with the most likely measured impact energies.

Pas die twee breukoppervlaktes onder van die gebreekte kerfstawe by die mees waarskynlike gemete slagenergieë.

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Match the two fracture surfaces below of the fractured notched bars with the most likely testing temperature.

Pas die twee breukoppervlaktes onder van die gebreekte kerfstawe by die mees waarskynlike toetstemperatuur. 

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The test standard makes provision for how many different notch geometries for standard Charpy impact test specimens? Enter just the number (eg. 10). 

Vir hoeveel verskillende kerfgeometrieë vir standaard Charpy-impaktoetsmonsters maak die standaard voorsiening? Voer slegs die nommer in (bv. 10).

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Given the image of the fracture surface below for one of the test specimens, estimate the percentage shear at the fracture surface. Remember to supply the unit next to the numerical value (Hint: refer to Section 9.3 and Annex A6).

Gegewe die beeld van die fraktuuroppervlak hieronder vir een van die toetsstukke, skat die persentasie skuif op die fraktuuroppervlak. Onthou om die eenheid langs die numeriese waarde te verskaf (Wenk: verwys na Afdeling 9.3 en Bylae A6).

 

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