Control Systems N6 — Memo

December 2022 — N6 — Control Systems

N6 2022 Nated Engineering

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Q1— Section header —

1.10True True False False True False True False True

Q2— Section header —

2.1

2.2(3 +1\ (2\

2.3(2\ [10]10

Q3— Section header —

3.1The gain peak value (Mp\: 22 dB (1\

3.2The TWO corner frequencies: 1 rad/s (1\

3.4The phase crossover frequency ( (1\

3.5The resonant frequency (

3.6The gain margin: 5 dB The gain and phase margins are negative, thus ensuring instability in the system. (2\ [10]10

Q4— Section header —

4.1Magnitude in dB 0,1 Phase in degrees [10]10

Q5— Section header —

5.1

5.2(5\ [10]10

Q6— Section header —

6.1Inductive Capacitive Tachogenerator (3\

6.3It is the voltage between adjacent turns of wire divided by the input voltage. (2\

6.4Photoelectric transducer (1\ [10]10

Q7— Section header —

7.1It converts one form of energy into another e.g. echanical energy into electrical energy or vice versa. (2\

7.2Reference Voltage Output Voltage Rotor Input

7.5Is used for the remote position control of artillery guns and radar turrets. (2\ [10]10

Q8— Section header —

8.1Helical gear The sliding vanes which slide in the rotor move outwards due to a centrifugal force. The centrifugal force and pressure keep the vanes in contact with the casing as the vanes move the fluid along the cavity of the

Q9— Section header —

9.1xhausts air into the atmosphere It is highly compressible s much faster s suitable for fire risk areas Cheaper operating costs It is clean [10]10

Q10— Section header —

10.1Triangular wave It gives much more useful informat ion when used to test circuits. [10] TOTAL:10

Mark Allocation

Sections10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 = 100 marks

Paper information

TitleMemo

SubjectControl Systems

LevelN6

Document typeNated Engineering

Year2022

MonthDecember

Pages8

Downloads5

Examination context

Decade2020s

Years ago4y

SeasonSummer (SH)

Start dayThursday

Exam periodDecember 2022

Days since exam1,410

About Control Systems 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 size326.1 KB

Pages8

Archived on8 September 2026

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