Nc970 Electrical Workmanship Signed Off NCV Level 4 — Memo

November 2024 — NCV Level 4 — Nc970 Electrical Workmanship Signed Off

NCV Level 4 2024 NCV Engineering

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Q1— Section header —

1.1.1Insulated

1.1.2Current

1.1.330 mA

1.1.4Haemorrhage

1.1.5

1.2.1Cuts Bruises Crushing Death from moving machine parts Loss of limbs Burns Fires and explosions Visually inspect grinding wheels.

1.4.1False

1.4.2False

1.4.3True

1.4.4

1.5Apply job rotation to restrict long working hours on difficult jobs. ke sure that employees are well trained in operating procedures. Do risk assessments. Inc rease safety awareness signage. [20]20

Q2— Section header —

2.1.1Circuit breaker

2.1.2Ripple relay

2.1.3Geyser/H.W.C. isolator, double pole isolator , DPST solator

2.1.4Geyser/H.W.C. e lement

2.1.5

2.2i.e. battery, DC, a lternating current, AC, solar, invertor (any one of these\ Conductors i.e. w ires, cables (any one of these\ Control devices any kind o f switching device or component

2.4CIF x A 96 x 30 500

2.5Conductors can melt together. Fire due to sparks and heat. Busbar damage, buckling/bending. Power system unstable, can shut down. [20]20

Q3— Section header —

3.1.1The amount of total light emitted in all directions from a light source

3.1.2

3.2

3.3.4

3.4.1Filament lamps

3.4.2Arc lamps

3.4.3

3.5.1ight or lamp starts instantly Can be used with light dimmers vailable in different shapes, sizes, colours and wattages (any one of these\ Contains mercury Lamps need a ballast Less brightness

Q4— Section header —

4.1Polarity tests Earth continuity tests Insulation resistance tests

4.2.1Circuit diagram correct 3 marks Any two labels 1 mark each (Any similar correct circuit diagram\ (5\

4.2.2

4.3.4

4.4Disconnect the switch or control module wiring. Unscrew or unclip the switch /control module. t the new component and wiring. [20]20

Q5— Section header —

5.1Proper motor sizing Site survey Environmental conditions Damage inspection of machines/motors Motor cleanliness Motor lubrication Installation foundations Connect one lead of the meter to the armature supply terminal

5.3Label or tag all wiring and connection points. Make notes and sketches. Clean the exterior motor surfaces. Inspect all leads/wiring for damage/wear and tear. Check the motor frame for cracks or damage.

Mark Allocation

Sections20 + 20 + 20 + 20 + 20 = 100 marks

Paper information

TitleMemo

SubjectNc970 Electrical Workmanship Signed Off

LevelNCV Level 4

Document typeNCV Engineering

Year2024

MonthNovember

Pages8

Downloads4

Examination context

Decade2020s

Years ago2y

SeasonSpring (SH)

Start dayFriday

Exam periodNovember 2024

Days since exam710

About Nc970 Electrical Workmanship Signed Off 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

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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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Pages8

Archived on8 September 2026

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