Radio And Television Theory N1 — Memo

April 2021 — N1 — Radio And Television Theory

N1 2021 Nated Engineering

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Q1— Section header —

1.55

Q2— Section header —

2.1rue

2.2rue

2.3rue

2.4alse

2.55

Q3— Section header —

3.1010

Q4— Section header —

4.1+5 = 1,714 A

4.310

Q5— Section header —

5.1ANTENNA LOUD GANGED SPEAKER TUNING AC D (10\

5.2Mixer

5.2Detector

5.2Loud speaker (3 [16]16

Q6— Section header —

6.1The brightness of information or light intensity

6.2A black a nd white TV consisting of one single cathode driver

6.3The transmission in a straight or direct line between the transmitter and receiver

6.4The beat frequency between the vision and sound IF signal produce a 6 MHz sound signal at intercarrier frequency.

6.510

Q7— Section header —

7.16

Q8— Section header —

8.1The f requency of a wave is the number of cycles completed per second.

8.2eriod is the time taken complete one cycle.

8.3Frequencies that fall between two cut off half power points, and the amplitude of the signal falls to a value below 0,707 of the peak amplitude.

8.4Cycle is that part of a wave between two successive points having the same value and at which the wave is varying in the same direction.

8.5The length of the path travelled by the wave during one cycle. [10]10

Q9— Section header —

Q10— Section header —

Q11— Section header —

Q12— Section header —

12.1ener diode

12.2ariable capacitor

12.3PNP transistor (3 [6] TOTAL:6

Topics Identified

Business Plan

Mark Allocation

Sections5 + 5 + 10 + 10 + 16 + 10 + 6 + 10 + 5 + 7 + 10 + 6 = 100 marks

Paper information

TitleMemo

SubjectRadio And Television Theory

LevelN1

Document typeNated Engineering

Year2021

MonthApril

Pages6

Downloads1

Examination context

Decade2020s

Years ago5y

SeasonAutumn (SH)

Start dayThursday

Exam periodApril 2021

Days since exam2,017

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 size660.8 KB

Pages6

Archived on8 September 2026

File age45d

ContributorFreeMode

Fingerprint550EC56E7710

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