8202-020 & 520 Level 2 Electrical Installation - Theory Exam - June 2022 Mark Scheme

Sep 30, 2026

June 2022 mark scheme for the Level 2 Technical Certificate in Electrical Installation, covering 8202-020 and 520 theory exam questions. The material provides model answers (keys) and test-spec references for short multiple-choice and calculation items, including health and safety actions on construction sites, safe isolation requirements, specialist removal of asbestos, and electrical science topics. It also references units, conductor area from figures, voltage and power formulas, cylinder volume, resistivity, insulation moisture absorption, displayed instrument readings, and suitability of cables for fire conditions.

LanguageEnglish

CategoryExam

FormatPDF

Pages26

Reading Time1 h 6 min

AccessFree to download

Health and Safety and Industry Practices

Construction site and safe isolation questions

Electrical Science

Instruments, units, formulas and calculations

Cable types and circuit problems

8202-20 Level 2 Technical Certificate in Electrical Installation 8202-020 & 520 Level 2 Electrical Installation – Theory exam June 2022 Mark Scheme | 1. | | | | --- | --- | --- | | What is the first action to take after discovering an accidental fire on a construction site?
(A) Ring the HSE.
(B) Raise the alarm.
(C) Smother the flames.
(D) Find an extinguisher. | | | | Test spec reference: 201.03.03 Knowledge | Total marks: 1 mark | Key: B | | LO: 201 Health and Safety and Industry Practices | | | | 2. | | | | --- | --- | --- | | Which instrument is required to carry out Safe Isolation?
(A) Loop Impedance Tester.
(B) Low Resistance Ohmmeter.
(C) Approved Voltage Indicator.
(D) Insulation Resistance Tester. | | | | Test spec reference: 201.04.01 Understanding | Total marks: 1 mark | Key: C | | LO: 201 Health and Safety and Industry Practices | | | | 3. | | | | --- | --- | --- | | Which substance would require specialist licenced removal if found during a building demolition?
(A) Cement.
(B) Gypsum.
(C) Plywood.
(D) Asbestos. | | | | Test spec reference: 201.03.07 Applied knowledge | Total marks: 1 mark | Key: D | | LO: 201 Health and Safety and Industry Practices | | | | 4. | | | | --- | --- | --- | | What is the maximum voltage to earth of a single-phase reduced low voltage supply used on a construction site?
(A) 55 V
(B) 110 V
(C) 230 V
(D) 400 V | | | | Test spec reference: 201.04.02 Understanding | Total marks: 1 mark | Key: A | | LO: 201 Health and Safety and Industry Practices | | | | 5. | | | | --- | --- | --- | | Who is responsible for working out estimates for materials using a building design?
(A) Client.
(B) Architect.
(C) Clerk of works.
(D) Quantity surveyor. | | | | Test spec reference: 201.06.02 Knowledge | Total marks: 1 mark | Key: D | | LO: 201 Health and Safety and Industry Practices | | | | 6. | | | | --- | --- | --- | | What unit is equivalent to V x 10-3?
(A) MV
(B) kV
(C) mV
(D) µV | | | | Test spec reference: 202.01.01 Knowledge | Total marks: 1 mark | Key: C | | LO: 201 Health and Safety and Industry Practices | | | | 7. Calculator required | | | | --- | --- | --- | | What is the cross-sectional area for the conductor shown in Figure 1?

Figure 1
A) 6 mm2
B) 10 mm2
C) 16 mm2
D) 25 mm2 | | | | Test spec reference: 202.01.03 Understanding | Total marks: 1 mark | Key: C | | LO: 202 Electrical Science | | | | 8. | | | | --- | --- | --- | | Transpose 􀜫௕ = √ଷ~~ ~~×~~ ~~௏௉ಽ×஼௢௦ø to make VL the subject.
A) 􀜸௅ = √ଷ~~ ~~×~~ ~~஼௉௢௦ø~~ ~~×ூ~~ ~~್
B) 􀜸௅ = √ଷ~~ ~~×~~ ~~஼௢௉௦ø~~ ~~×~~ ~~ூ~~ ್~~
C) 􀜸௅ = √ଷ~~ ~~×~~ ~~஼ூ௢್௦ø~~ ~~×~~ ~~௉
D) 􀜸௅ = √ଷ~~ ~~×~~ ~~ூ஼~~್~~௢௦ø~~ ~~×~~ ~~௉ | | | | Test spec reference: 202.01.02 Understanding | Total marks: 1 mark | Key: A | | LO: 202 Electrical Science | | | | 9. | | | | --- | --- | --- | | Which is a formula for calculating power?
(A) 􀜲 = 􀜫􀜴 ଶ
(B) 􀜲 = 􀜫 ଶ 􀜴
(C) 􀜲 = 􀜸􀜴 ଶ
(D) 􀜲 = 􀜫 ଶ 􀜸 | | | | Test spec reference: 202.01.02 Knowledge | Total marks: 1 mark | Key: B | | LO: 202 Electrical Science | | | | 10. Calculator required | | | | --- | --- | --- | | A hot water cylinder is 1.4 m high and 0.45 m in diameter. What is the maximum volume of water this cylinder can hold?
(A) 0.11 m3
(B) 0.22 m3
(C) 0.44 m3
(D) 0.89 m3 | | | | Test spec reference: 202.01.03 Applied knowledge | Total marks: 1 mark | Key: B | | LO: 202 Electrical Science | | | | 11. | | | | --- | --- | --- | | Which has the lowest resistivity?
(A) Lead.
(B) Steel.
(C) Copper.
(D) Aluminium. | | | | Test spec reference 202.02.02 Knowledge | Total marks: 1 mark | Key: C | | LO: 202 Electrical Science | | | | 12. | | | | --- | --- | --- | | Which electrical insulation material absorbs moisture if left exposed to the atmosphere?
(A) Butyl rubber.
(B) Polyvinyl chloride.
(C) Magnesium ox

FAQs

What is the mark key for the first question about an accidental fire on a construction site?

The key is B, which is to raise the alarm.

Which instrument is required to carry out Safe Isolation according to the mark scheme?

The key is C: an Approved Voltage Indicator.

Which choice is correct for the maximum voltage to earth on a single-phase reduced low voltage supply used on a construction site?

The key is A: 55 V.

Sep 30, 2026

Upload by Lucas Martin