Communication Electronics N5 — Document

April 2019 — N5 — Communication Electronics

N5 2019 Nated Engineering

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🎯 100 marks ⏱️ 3h 📄 6 pages 📝 30 items found

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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 —

1.1What is understood by the term selectivity as applied to electronic circuits? (3\

1.2An inductor with a Q connected in series with a c apacitor and a 10 mV AC supply. If the frequency of operation is 455 kHz and a constant current of 0,1 A is required, calculate the following circuit parameters:

1.2.1oltage drop across the capacitor (5\

1.2.2nductance value (3\

1.3Refer to FIGURE 1 and do the following for a supply current of 50 A 300: FIGURE 1

1.3.1Calculate (6\

1.3.2Determine (5\ [22] LR22

Q2— Section header —

2.1uality factors and (6\

2.2ritical coupling coefficient (2\

2.3ctual coupling coefficient (2\ [10]10

Q3— Section header —

3.1raw and label a circuit that will suppress all frequencies above 4,3 kHz. The (12\

3.2Make simple, labelled sketches to represent the following filters in terms of impedance. Write the equations for the series and shunt impedances below each sketch:

3.2.1type low pass filter

3.2.2type high pass filter

3.2.3type low pass filter (3 4\ (12\

Q4— Section header —

Q5— Section header —

5.1RF carrier and both sidebands (3\

5.2pper sideband only (1\

5.3pper and lower sidebands without the carrier (2\

5.4RF carrier only (1\

Q6— Section header —

Q7— Section header —

7.1Make a neat, labelled sketch of a Yagi antenna consisting of THREE elements. (6\

7.2efine each of the following terms:

7.2.1mpedance matching

7.2.210

Mark Allocation

Total100 marks

Sections22 + 10 + 24 + 15 + 12 + 10 = 93 marks

Paper information

TitleDocument

SubjectCommunication Electronics

LevelN5

Document typeQuestion paper

Year2019

MonthApril

Pages6

Downloads5

Examination context

Decade2010s

Years ago7y

SeasonAutumn (SH)

Start dayMonday

Exam periodApril 2019

Days since exam2,752

About Communication Electronics 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 size488.5 KB

Pages6

Archived on8 September 2026

File age49d

ContributorFreeMode

Fingerprint4EF7EE3DFB08

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