Koelervakteorie N2 — Document

April 2018 — N2 — Koelervakteorie

N2 2018 Nated Engineering

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1.1oem DRIE tipes roterende kompressors wat in die verkoelingsveld gebruik word. (3\

1.2Verduidelik kortliks die silinderkonstruksie in n heen en weerbewege nde kompressor.

1.3Noem die doel van elkeen van die volgende komponente van n heen en weerbewegende kompressor.

1.3.1liesigglas

1.3.2liepomp

1.3.3Silinderkop

1.3.4

1.4Wat word met di e term positiewe verplasingsmasjien bedoel wanneer daar na n heen en

1.5Noem VIER verskillende punte van faling wat tot die oneffektiewe pompaksie van ompressor lei (4\

2.2Maak n netjiese, benoemde tekening van n verdampingskondensator. (7\

2.3Beskryf kortliks die operasionele beginsel van n verdampingskondensator. (4\

2.4Noem DRIE faktore wat oorweeg mo et word wanneer n verdamper gekies word. (3\

2.5Noem DRIE algemene ontwerp en installasie oorwegings vir verkoelingspypwerk. (3\ [20]20

3.1

3.1.1itteruiler

3.1.2Krukkasverhitter

3.1.3if

3.1.4

3.1.5Trillingselimineerder (5 2\ 10 11041572

3.2FIGU UR

3.2toon meter spruitstukke in die verkoelingstelsel. Identif iseer die onderdele en komponente soos deur die pyle in die figuur aangedui. Skryf slegs die antwoord langs die vraagnommer (3.2.1

3.2.7\in die ANTWOORDBOEK neer. FIGURE 3.2 SPUITSTUKMETER (7\

3.3Wat verstaan jy onder die term kontrole modus ? Gee ook een voorbeeld van kontrole modus (2 + 1\

3.2.711041572 1550

4.1Defin ieer die volgende terme:

4.1.1Siklus

4.1.2Opera sionele differensiaal

4.1.3Afwyking (3 2\

4.2Noem VIER algemene klassifikasies van waaiers. (4\

4.3atter tipe waaier sou jy in n groot lugversorgingseenheid installeer? Gee TWEE redes vir jou keuse. (3\

4.4Noem die doel van elke item wat hier onder aangegee word.

4.4.1Ele ktroniese lekopspoorder

4.4.2Baromet er

4.4.3ypsleutel

4.4.4Manometer (4 1\ (4\

4.520

5.1Herrangskik die stappe hie r onder in die korrekte volgorde om die prosedure vir die evakuasie van n verkoelstelsel te toon. Skryf elke stap langs die toepaslike letter (A H\ in die ANTWOORDBOEK neer.

5.2Die volgende fout word gedurende foutspeurin g op terrein gediagnopseer: Die hele aanleg wil nie aanskakel nie.

5.2.1Noem TWEE moontlike oorsake van die fout.

Q5— Section header —

5.3

5.4Noem enige VYF verkoelmiddels wat in verkoelingstelsels gebruik word. (5\ [20] TOT AL: 100 1104157220

Mark Allocation

Total100 marks

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

Paper information

TitleDocument

SubjectKoelervakteorie

LevelN2

Document typeQuestion paper

Year2018

MonthApril

Pages8

Downloads4

Examination context

Decade2010s

Years ago8y

SeasonAutumn (SH)

Start daySunday

Exam periodApril 2018

Days since exam3,116

About Koelervakteorie examination preparation

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