Radio And Television Theory N1 — Memo

August 2018 — N1 — Radio And Television Theory

N1 2018 Nated Engineering

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Q1— Section header —

1.1= 0,804 = 0,482 V [10]10

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2.1Peak voltage Vrms 0,707 20__ 0,707 = 28,29 V = 20 V

2.3

2.4Generation period = = 20 ms = 3 m/s (5 [10]10

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3.11470 )T

Q4— Section header —

4.1utomatic gain control

4.2utomatic frequency control

4.3ery high frequency

4.4ltra high frequency

4.5ntermediate frequency (5

Q5— Section header —

Q6— Section header —

6.1(3 (6\

6.2ransmitter generates radio frequencies ransmitting aerial radiates these waves into space erial at the receiver intercepts the radiated waves eceiver amplifies and selects the desired frequencies and demodulates/

Q7— Section header —

7.1antenna speaker volume ne mark for each label (10\ Amp Mixer Amp Demod

7.2AM is generally cheaper [15]15

Q8— Section header —

Q9— Section header —

9.1Contrast it is the difference between the black and white parts of the picture

9.2The video amplifier amplifies the vi deo signal to drive the cathode ray tube

9.3Pincushion distortion means the deformation of the picture at the edges of the raster

9.4hadow mask is a perforated steel plate mounted inside the tube in front of the screen.

9.5The field oscillator generates a frequency of 50 hz for the vertical deflection. It is a synchronised oscillator. (5 [10]10

Q10— Section header —

Topics Identified

Business Plan

Mark Allocation

Sections10 + 10 + 10 + 18 + 15 + 10 + 10 + 7 = 90 marks

Paper information

TitleMemo

SubjectRadio And Television Theory

LevelN1

Document typeNated Engineering

Year2018

MonthAugust

Pages6

Downloads3

Examination context

Decade2010s

Years ago8y

SeasonWinter (SH)

Start dayWednesday

Exam periodAugust 2018

Days since exam2,992

About Radio And Television Theory 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

A TVET past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?

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.

File details

File size530.1 KB

Pages6

Archived on8 September 2026

File age45d

ContributorFreeMode

Fingerprint0D2E61A2092E

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