Electrotechnology Memerandum NCV Level 2 — Document

November 2023 — NCV Level 2 — Electrotechnology Memerandum

NCV Level 2 2023 NCV Engineering

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Q1— Section header —

1.1.1False

1.1.2False

1.1.3True

1.1.4False

1.1.5

1.2Ohm law state that the current flowing in a circuit is directly proportional to the applied voltage across the circuit and inversely proportional to the resistance of the circuit

1.3.2

1.420

Q2— Section header —

2.1.1pictorial drawing circuit diagram (2\

2.1.2(2\

2.1.3

2.3Flat twin and earth cable Surfix cable Cable knife Soldering iron When it is heated, it will deflect causing the auxiliary circuit to be off

2.6Ensure that the teeth point away from the handle. Check that the blade is not loose in the handle. Apply pressure on forward strokes only. When hacksaw is not in use, the tension in the frame should be released

Q3— Section header —

3.1.6

3.2.1Wire stripper to strip insulation of the wire.

3.2.2Soldering Iron to join components with solder to each other.

3.2.3Solder pump to loosen components from circuit board.

3.2.4Long nose pliers to bend wires and to get into difficult reach places.

3.2.5Oscilloscope to provide visual presentation of wave forms.

3.2.6

3.3

3.4.1Use breadboard for test circuit

3.4.2

3.5.2High

3.5.4High

3.5.5High

3.5.625

Q4— Section header —

4.1.10,333 A

4.1.20,667 A

4.1.41,333 A

4.1.5

4.2Next check the output side. If there is no voltage or if the voltage on the output side is lower than it is supposed to be, the transformer will need to test to find out where the fault lies. With the power off, remove the transformer from the equipment and

4.3.1Disconnect both sides of the cable being tested and connect the cable to the two sides of a multimeter on the ohm scale. Make sure that you connect the same colour wire (e.g. brown on both

4.4The fault is traced by starting with the input and then proceeding through all the stages towards the output section. (2\

4.5Once you have identified the faulty component, you will have to replace it When you are satisfied that it works, switch off everything and retest again. [20]20

Q5— Section header —

5.1Description Qty Distribution board with an earth and neutral bar solator A earth leakage A circuit breaker A circuit breaker A circuit breaker

5.2The characteristics that improve the product according to customers The volume of purchases made each month. The amount of money spent on the product each month. The price that customers would be willing to pay for an improved product.

Mark Allocation

Sections20 + 25 + 25 + 20 + 10 = 100 marks

Paper information

TitleDocument

SubjectElectrotechnology Memerandum

LevelNCV Level 2

Document typeNCV Engineering

Year2023

MonthNovember

Pages6

Downloads2

Examination context

Decade2020s

Years ago3y

SeasonSpring (SH)

Start dayWednesday

Exam periodNovember 2023

Days since exam1,074

About Electrotechnology Memerandum 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 size286.3 KB

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