Electrical Technology Paper 1 (Afrikaans)

November 2009 — Grade 12 / Matric — Electrical Technology

Past Paper 2009 Grade 12 Afrikaans

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🎯 200 marks ⏱️ 3h 📄 12 pages 📝 59 items found ∑ 1 math symbols 📚 1 topics 🔑 1 key info

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Q1— Section header —

1.1

1.2Die ontwerp, vervaardi produkte vereis dat die vervaardiger oor sekere entrepreneursvaardighede moet beskik. Noem DRIE vaardighede waaroor

1.3Elektriese Tegnologie-klas kry. alle leerders in 'n Elektriese T egnologie-klas sal wees.

Q2— Section header —

2.1Die inwoners van Mazweni-aftreeoord genoeg is nie. Die Elektrie se Tegnologie-leerders is gevra om die probleem op te los.

2.1.3Identifiseer die probleem wat (2) (6) (2)2

Q3— Section header —

3.5

Q2— Section header —

Q3— Section header —

4.3

4.3.2(3) (3) [10] EN C- STROOMKRINGE10

5.1Skryf die SI-simbole neer vir di

5.1.3Impedansie Kapasitiewe reaktansie Induktansie (1) (1)1

5.2is met 'n weerstand. Die ) is 40 V en die spanning oor die weerstand (V ) is 30 V. As die stroomvloei 3 A is,

5.2.2Bereken die totale spanning oor die stroomkring. Bereken die fasehoek tussen die to stroom. (3) (3)3

Q4— Section header —

Q5— Section header —

5.2.3Bereken die impedansie v an die stroomkring. Teken die fasordiagram van die stroomkring. (3)3

5.2.4(6)6

5.3'n 20 -weerstand wat almal in parallel verbind is oo r 'n 100 V-, 50 Hz- toevoer. Wanneer die st room deur die kapasitor 4,71 A is, bereken die volgende:

5.3.3Die stroom deur die induktor 0,1 H Die stroom deur die weerstand Die totale stroom (6)6

6.3Teken 'n netjiese, volledig benoe mde kenkromme van 'n TRIAK. (4) (5)5

6.3.2Die DIAK (2) (3)3

6.4rd EN hoe dit afgeskakel word. (4)4

Q6— Section header —

6.5deur 'n weerstand vervang word.

6.6'n SBG bo die weerstandsmetodes van kragbeheer het.

6.7Noem EEN voordeel van 'n TRIAK bo 'n SBG in kragbeheer. (2) (1) [25]25

7.2positiewe terugvoer siklusse om die natuurlike-ossill asiefrekwensie te demonstreer. (3)3

7.3Beskou die frekwensiegedraggrafieke wa t in FIGUUR 7.1 hieronder getoon word, en beantwoord di e volgende vrae:

7.3.24

7.4Met verwysing na 'n operasionele versterker, doen die volgende: neagative

7.4.1Teken die operasionele versterker sal stel om as 'n optelversterk er met DRIE insette te reageer. (3)3

7.4.2uit insette geplaas word: = 0,5 V

7.4.3(4) [25] Elektriese Tegnologie DoE/November 2009 Kopiereg voorbehou25

Q7— Section header —

8.2de diagram wat aantoon enkelfasetransformators verbind kan wo eenheid te werk. (2)2

8.3'n driefasetransformator word voorsien Bereken die volgende by vollas:

8.3.33

9.5teruggevoer word as insette. Die multiv deel word, na gelang van die waarde van die spanning wat logiese 1 en 0 voor stel. Identifiseer die TWEE tipes. instandhouding van 'n stelsel) minder sal wees as vir 'n

Q8— Section header —

Q9— Section header —

9.6posisionele sensortoestelle op 'n keen sal 'n uitset Die uitset van die netwerk (F) moet 1 wees wanneer twee of meer van die 2(B) en 3(C)] seine van 1 gee.

9.6.1'n Karnaugh-kaart te gebruik. (4)4

9.6.2(5)5

9.6.3(5)5

9.7agram van 'n bistabiele mu hekke te gebruik. Dit moet onmoontlik (5) Elektriese Tegnologie

9.8Teken die uitset-tyd-diagram va indien die volgende insette op J en K t oegepas word. Teken die uitset onder die insette om die uitset in verhouding tot die inset aan te dui. Neem kennis van die stand van die pulsklok.

Q10— Section header —

10.1

10.1.2(2) (2)2

10.2van die kourotormotor in FIGUUR 10.1 hieronder. [Bron:

10.2.4Beskryf die basiese werking van 'n dr (7)7

10.4V-toevoer verbind. As die motor 'n arbeidsfaktor van 0,8 het, ber eken die volgende teen vollas:

10.4.3Die stroom geneem van die toevoer Die stroom wat deur elke fase vloei Die reaktiewe drywing van die motor (4) (3)3

10.2.110.2.2 10.2.3 10.2.4 Beskryf die basiese werking van 'n driefase-induksiemotor (kourotormotor\ 'n 4 kW-motor is in delta aan 'n 380 NSS

10.5beheerstroombaan van 'n driefase-d irek-op-lyn-motoraansitter.

Mathematical Content

trig

Topics Identified

Machines

Mark Allocation

Total200 marks

Sections10 + 10 + 10 + 10 + 30 + 30 + 25 + 25 + 15 + 35 + 30 = 230 marks

Per-question sum200 marks

Key Information

Websitewww.copper.org

Paper information

SubjectElectrical Technology

Year2009

SessionNovember

TypePast Paper

PaperPaper 1

LanguageAfrikaans

Pages13

Downloads5

Examination context

Decade2000s

Years ago17y

SeasonSpring (SH)

Start dayThursday

Exam periodNovember 2009

Days since exam6,199

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