Radio Theory N2 — Document

November 2022 — N2 — Radio Theory

N2 2022 Nated Engineering

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🎯 10 marks ⏱️ 3h 📄 5 pages 📝 39 items found 📚 1 topics

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Questions — A Preview of What to Expect in the Document

This section provides a quick preview of questions from the document. It may not display every question or the complete wording of each one. For the full content, including diagrams, tables and other information, view the original PDF above.

Q1— Section header —

1.15\n the ANSWER BOOK. COLUMN A COLUMN B

1.15Blocks DC Capacitors in parallel enerates a frequency Displays a waveform Resonance Three terminal device

Q2— Section header —

2.1The time constant (2\

2.2The voltage across the capacitor after 2 ms (5

2.3The voltage across the resistor after 2 ms (2\ [9

Q3— Section header —

3.1A circuit that contains only resistance

3.2A circuit that contains only inductance

3.3A circuit that contains only capacitance (3 3\ 9]

Q4— Section header —

4.1.1Draw a full wave power supply using a bridge rectifier.

4.1.2Draw the cycles of the input and output waveforms. (2 4\ (8\

4.2Name TWO semiconductor materials that diodes are made of (2\ [10]10

Q5— Section header —

5.1Draw the circuit diagram of a common collector amplifier that uses a NPN transistor. (6\

5.2State the characteristics of the emitter follower for the following:

5.2.1Current gain

5.2.2Voltage gain 11040862 Copyright reserved

5.2.3Power gain

5.2.4Input impedance (4 1\ (4\ [10]10

Q6— Section header —

6.1Differentiate between the following:

6.1.1A conductor

6.1.2An insulator

6.2Draw a fully labelled circuit diagram of a push pull amplifier that u se TWO NPN transistors. (8\

Q7— Section header —

Q8— Section header —

8.1If the input frequency to an AM receiver is 2 000 Hz give the value of the FOUR signals that will appear in the mixer. (4\

8.2Draw a neat label ed block diagram of a tuned radio frequency receiver. (6\

8.3Give a brief description of the process of amplitude modulation. (1 2\ (2\ [12]12

Q9— Section header —

9.1Name THR EE forms of damping of a moving coil meter (3\

9.2An oscilloscope displays an AC signal (one cycle\that covers 4 vertical divisions and 6 horizontal divisions. The volts/ division control is set at V/division. The time/ division control is set to 2

9.2.1Peak to peak voltage

9.2.2Average voltage

9.2Time period

9.2Frequency (4 2\ (8\ [11] TOTAL11

Topics Identified

Business Plan

Mark Allocation

Total100 marks

Sections15 + 10 + 10 + 10 + 12 + 11 = 68 marks

Paper information

TitleDocument

SubjectRadio Theory

LevelN2

Document typeQuestion paper

Year2022

MonthNovember

Pages6

Downloads2

Examination context

Decade2020s

Years ago4y

SeasonSpring (SH)

Start dayTuesday

Exam periodNovember 2022

Days since exam1,440

About Radio 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.

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File size227.3 KB

Pages6

Archived on8 September 2026

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