The provided standard mentions that accurately locating the hardness indenter is more important for low hardenability steel than high hardenability steel. Which of the following reasons is most likely?

Die gegewe standaard noem dat die posisionering van die hardheidsindringer belangriker is vir staal met 'n lae verhardbaarheid as vir 'n staal met hoë verhardbaarheid. Watter van die volgende redes is die waarskynlikste?

Why should the time between removing the hardenability specimen from the furnace and placing it in the Jominy end-quench setup for quenching be minimised as far as possible? Select all that apply. / Waarom moet die tyd tussen die haal van die verhardbaarheidsmonster uit die oond en die plasing daarvan in die Jominy-eindblus-opstelling vir blus so ver as moontlik verminder word? Kies alles wat van toepassing is.

Given your previous answers for this part of the practical test and your knowledge of the practical, select all of the statements that are True. 

Gegewe u vorige antwoorde vir hierdie deel van die praktiese toets en u kennis van die praktiese, kies al die stellings wat Waar is.

Match Specimen A and B with the characteristics of the untested notched, steel bar specimens. 

 Pas toetsstukke A en B by die eienskappe van die ongetoetste gekerfde staalstaaftoetsstuk.

Look at the image of tested specimens A and B, which have been labelled independently of the test videos (there is no link between the Charpy Test videos 1 and 2 and the labeling of the specimens in the image).

Using the standard provided and/or the microscopist's data, estimate the percentage shear fracture appearance of Specimen A.

Remember to type in the required percentage unit next to your numerical answer.

Kyk na die beeld van getoetste toetsstukke A en B, wat onafhanklik van die toetsvideo's gemerk is (daar is geen verband tussen die Charpy Test -video's 1 en 2 en die etikettering van die toetsstukke in die prent nie).

Deur die standaard verskaf en/of die mikroskopist se data te gebruik, skat die persentasie skuif breek voorkoms van Toetsstuk A.

Onthou om die vereiste persentasie -eenheid langs u numeriese antwoord in te voer.

Look at the image of tested specimens A and B, which have been labelled independently of the test videos (there is no link between the Charpy Test videos 1 and 2 and the labeling of the specimens in the image).

Using the standard provided and/or the microscopist's data, estimate the percentage shear fracture appearance of Specimen B.

Remember to type in the required percentage unit next to your numerical answer.

Kyk na die beeld van getoetste toetsstukke A en B, wat onafhanklik van die toetsvideo's gemerk is (daar is geen verband tussen die Charpy Test -video's 1 en 2 en die etikettering van die toetsstukke in die prent nie).

Deur die standaard verskaf en/of die mikroskopist se data te gebruik, skat die persentasie skuif breek voorkoms van Toetsstuk B.

Onthou om die vereiste persentasie -eenheid langs u numeriese antwoord in te voer.

Look at the image of tested specimens A and B, which have been labelled independently of the test videos (there is no link between the Charpy Test videos 1 and 2 and the labeling of the specimens in the image).

Which specimen displays ductile fracture characteristics? 

Kyk na die beeld van getoetste eksemplare A en B, wat onafhanklik van die toetsvideo's gemerk is (daar is geen verband tussen die Charpy Test -video's 1 en 2 en die etikettering van die toetsstukke in die prent nie).

Watter toetsstuk toon rekbare breek eienskappe?

Watch videos, "Charpy Test 1" and "Charpy Test 2"

Given your knowledge of material science, material behaviour, conservation of energy principles and your observations from the practical videos, match the Charpy test number (video name/number) with the most likely characteristics of the notched steel bar test specimens that were tested. 

Kyk na video's, "Charpy Test 1" en "Charpy Test 2"

Gegewe u kennis van materiaalwetenskap, materiaal gedrag, behoud van energie beginsels en u waarnemings uit die praktiese video's, pas die Charpy -toetsnommer (video -naam/nommer) by die waarskynlikste kenmerke van die gekerfde staalstaaf toetsstukke wat getoets is.

Watch videos, "Charpy Test 1" and "Charpy Test 2"

Given your knowledge of material science, material behaviour, conservation of energy principles and your observations from the practical videos, match the Charpy test number (video name/number) with the most probable type of failure experienced by the specimen tested in each test video.

Kyk na video's, "Charpy Test 1" en "Charpy Test 2"

Gegewe u kennis van materiaalwetenskap, materiaalgedrag, behoud van energiebeginsels en u waarnemings uit die praktiese video's, pas die Charpy -toetsnommer (video -naam/nommer) by die waarskynlikste tipe breking wat die toetsstuk in elke toets video ondervind.

Look at the image of tested specimens A and B, which have been labelled independently of the test videos (there is no link between the Charpy Test videos 1 and 2 and the labeling of the specimens in the image).

Which specimen displays brittle fracture characteristics? 

 Kyk na die foto van getoetste toetsstukke A en B, wat onafhanklik van die toetsvideo's gemerk is (daar is geen verband tussen die Charpy Test -video's 1 en 2 en die etikettering van die toetsstukke in die foto nie).

Watter toetsstuk vertoon bros breek eienskappe?