Koelervakteorie N2 — Document

April 2021 — N2 — Koelervakteorie

N2 2021 Nated Engineering

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🎯 100 marks ⏱️ 3h 📄 5 pages 📝 33 items found

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Q1— Section header —

1.1Noem DRIE soorte draaikompressors wat in koelstelsels gebruik word. (3\

1.2Noem VIER eienskappe van 'n doeltreffende klepsamesteleenheid. (4\

1.3Kies 'n beskrywing in KOLOM B wat pas by 'n term in KOLOM A. Skryf slegs die letter (A F\ langs die vraagnommer (1.3.1

1.3.6\in die ANTWOORDBOEK neer. KOLOM A KOLOM B

1.3.6

1.420

Q2— Section header —

2.1Maak 'n netjiese, benoemde skets van 'n verdamper kondensator wat in koelstelsels gebruik word. (6\

2.2VERKOELINGSIKLUS FIGUUR 1

2.2.1

2.2.2Hoe kan gekeer word dat vuilgoed in die uitsitklep in FIGUUR 1 beland? (2\

2.3Watter TWEE faktore moet in ag geneem moet word as mens tydens die bou van 'n koelingsaanleg op 'n verdamper moet besluit? (2\ [20]20

Q3— Section header —

3.1Noem VIER soorte koelmiddelkontrolekleppe. (4\

3.2Maak 'n netjiese, benoemde skets van 'n termostatiese uitsitklep. (6\

3.3Noem TWEE voordele van 'n termostatiese uitsitklep. (2 x 2\ (4\

3.4Verduidelik die funksie en werking van elk van die volgende kontroletoestelle:

3.4.1Boltermostate met afstandkontrole

3.4.2LD/HD skakelaar (2 x 3\ (6\ [20] 1104157220

Q4— Section header —

4.1Noem VYF probleme wat die verkeerde keuse, foutiewe berekening of verkeerde gebruik van materiale of toerusting tot gevolg het. 5\

4.2Verduidelik die verband tussen die druk en die temperatuur van 'n koelmiddel. (2\

4.3FIGUUR 2 Verduidelik hoe mens 'n oopsperring aan die ent van 'n koperpyp maak. (8\

4.420

Q5— Section header —

5.1Wat beteken die term reiniging ten opsigte van koelstelsels? (2\

5.2Wanneer moet 'n koelstelsel gereinig word? (2\

5.3Verduidelik die funksie van elk van die volgende beveiligingstoestelle in die kontrolebaan van 'n kompressor:

5.3.1Oliedrukveiligheidskakelaar

5.3.2

5.4Verduidelik hoe mens suigoorverhittemperatuur meet. (8\

5.5Verduidelik die term evakuasie wat ten opsigte van koelstelsels gebruik word. (2\ [20] TOTAAL: 100 1104157220

Mark Allocation

Total100 marks

Sections20 + 20 + 20 + 20 + 20 = 100 marks

Paper information

TitleDocument

SubjectKoelervakteorie

LevelN2

Document typeQuestion paper

Year2021

MonthApril

Pages6

Downloads3

Examination context

Decade2020s

Years ago5y

SeasonAutumn (SH)

Start dayThursday

Exam periodApril 2021

Days since exam2,018

About Koelervakteorie examination preparation

This TVET examination resource can be used as part of a structured revision programme. Past papers are most useful when learners attempt questions independently, work within a realistic time limit, and review their answers afterwards.

How to use this resource for revision

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For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.

understanding question requirements

applying subject knowledge

working under time constraints

checking answers

identifying revision priorities

A practical revision approach

Start by completing the resource without looking at the memorandum. Review incorrect and incomplete answers afterwards and make a short revision list based on the areas that caused difficulty.

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