How many questions are on the City & Guilds 2922-34 Solar PV exam and how long is it?

The 2922-34 award is assessed by an online e-volve multiple-choice knowledge test of about 30 questions lasting roughly 60 minutes, plus a separate practical assessment. City & Guilds does not publish a fixed item count, and you generally need around 75% to pass the knowledge test.

What score do I need to pass the 2922-34 knowledge test?

The online knowledge test pass mark is typically around 75%, and you must also pass the practical assessment. Because the syllabus spans PV theory, design, BS 7671 wiring, MCS/G98-G99 and testing, balanced preparation across every topic is the safest approach.

Who is eligible for the City & Guilds 2922-34 qualification?

It is CPD for qualified electricians. You normally need a Level 3 electrotechnical qualification such as City & Guilds 2357 or 5357, or an equivalent ECS Gold Card, and existing competence in BS 7671 inspection and testing.

Is the City & Guilds 2922 exam taken online?

The multiple-choice knowledge test is delivered online through City & Guilds e-volve at an approved training centre, but there is also a hands-on practical assessment that must be completed in person, so the qualification is not fully remote.

Does 2922-34 let me register with MCS to install solar PV?

Yes. The 2922-34 award is recognised as an entry route to the competence required for MCS installer certification, which (with consumer-code membership) allows your customers to access incentives such as the Smart Export Guarantee.

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100+ Free C&G 2922-34 Solar PV Practice Questions

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2026 Statistics

Key Facts: C&G 2922-34 Solar PV Exam

100

Practice Questions

OpenExamPrep

~30

Knowledge-Test Questions

City & Guilds

~60 min

Online Test Time

City & Guilds

~75%

Pass Mark

City & Guilds

Section 712

BS 7671 PV Rules

IET

16 A/phase

G98/G99 Threshold

ENA

The City & Guilds 2922-34 Level 3 Award in the Installation and Maintenance of Small Solar Photovoltaic (PV) Systems is the UK qualification that lets competent electricians install and maintain small solar PV systems and work toward MCS registration. Assessment is by an online e-volve multiple-choice knowledge test (around 30 questions, about 60 minutes, roughly 75% to pass) plus a separate practical assessment. Entry requires an existing Level 3 electrotechnical qualification (such as C&G 2357 or 5357) or an equivalent ECS Gold Card. The syllabus covers PV principles and cell technology, system design and sizing, components (panels, inverters and mounting), DC and AC wiring to BS 7671 Section 712, MCS and G98/G99 grid connection, testing and commissioning to IEC 62446-1, and maintenance and safety. This free prep includes 100 research-based practice questions with explanations and an AI tutor.

Sample C&G 2922-34 Solar PV Practice Questions

Try these sample questions to test your C&G 2922-34 Solar PV exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under Standard Test Conditions (STC) used to rate the peak power of a PV module, what irradiance and cell temperature are specified?

A.800 W/m² at 20°C

B.1000 W/m² at 25°C

C.1000 W/m² at 20°C

D.1200 W/m² at 25°C

Explanation: STC defines module ratings at an irradiance of 1000 W/m², a cell temperature of 25°C and an air mass of AM 1.5. The watt-peak (Wp) figure on a module's nameplate is the power delivered under these conditions.

2A PV module's power output is rated in which unit to reflect performance under Standard Test Conditions?

A.Kilowatt-hour (kWh)

B.Watt-peak (Wp)

C.Volt-ampere reactive (VAr)

D.Ampere-hour (Ah)

Explanation: Module nameplate power is expressed in watt-peak (Wp), the maximum power produced at STC. Array size is commonly given in kWp (kilowatt-peak), the sum of the modules' Wp ratings.

3Which PV cell technology typically offers the highest conversion efficiency per unit area in commercial UK domestic modules?

A.Amorphous silicon thin-film

B.Polycrystalline (multicrystalline) silicon

C.Monocrystalline silicon

D.Cadmium telluride thin-film

Explanation: Monocrystalline silicon cells are cut from a single uniform crystal, giving the highest efficiency (commonly 20-22%+) and the best performance in limited roof areas. Polycrystalline and thin-film technologies are generally lower in efficiency per m².

4What is the effect of increasing cell temperature above 25°C on a crystalline silicon PV module's output?

A.Open-circuit voltage falls and power output decreases

B.Open-circuit voltage rises and power output increases

C.Short-circuit current falls sharply and voltage is unaffected

D.Output is completely unaffected by temperature

Explanation: Crystalline silicon has a negative temperature coefficient for voltage (roughly -0.3% to -0.4% per °C), so as cell temperature rises the open-circuit voltage and overall power fall. Short-circuit current rises only very slightly with temperature.

5When designing the maximum number of modules in a series string, which temperature condition produces the worst-case (highest) string open-circuit voltage that must not exceed the inverter's maximum input voltage?

A.The highest expected cell temperature

B.Standard Test Condition temperature of 25°C

C.The lowest expected local ambient/cell temperature

D.Nominal Operating Cell Temperature (NOCT)

Explanation: Because Voc rises as temperature falls, the maximum string Voc occurs at the lowest expected cell temperature for the site. The designer applies the module's voltage temperature coefficient at that minimum temperature to ensure the string voltage stays within the inverter's maximum DC input rating.

6In a PV array, how does connecting modules in series affect the electrical characteristics of the string?

A.Voltages add and current stays the same as one module

B.Currents add and voltage stays the same as one module

C.Both voltage and current double

D.Neither voltage nor current changes

Explanation: Series connection (string wiring) adds the module voltages while the current remains that of a single module. Connecting strings in parallel does the reverse — currents add and voltage stays constant — which is how arrays are scaled to suit the inverter's MPPT window.

7What is the primary function of the Maximum Power Point Tracker (MPPT) within a grid-tied PV inverter?

A.To convert DC to AC at 50 Hz

B.To continuously adjust the operating voltage so the array delivers maximum available power

C.To disconnect the array if the grid fails

D.To step up the AC voltage to 400 V three-phase

Explanation: The MPPT continuously varies the array's operating point on its I-V curve to keep it at the knee — the maximum power point — as irradiance and temperature change. This maximises harvested energy across the day.

8A grid-connected string inverter for a UK domestic PV system must NOT energise an islanded section of the network during a mains outage. Which protection function ensures this?

A.Surge protection device (SPD)

B.Loss-of-mains (anti-islanding) protection

C.Residual current device (RCD)

D.DC isolator

Explanation: Loss-of-mains (anti-islanding) protection, required for G98/G99 compliance, automatically disconnects the inverter from the network when the grid supply is lost. This protects network operatives working on what they believe is a dead circuit.

9Which Engineering Recommendation applies to the simple 'connect and notify' (fit-and-inform) approach for a single-phase domestic PV inverter rated at or below 16 A per phase?

A.G99

B.G100

C.G98

D.G83/2

Explanation: ENA Engineering Recommendation G98 covers micro-generators up to and including 16 A per phase (about 3.68 kW on single-phase). The installer may commission first and notify the DNO within 28 days. G98 superseded the older G83.

10A single-phase domestic PV system uses an inverter rated above 16 A per phase (greater than approximately 3.68 kW). Which process must be followed before connecting to the grid?

A.Fit and inform within 28 days under G98

B.Apply for and obtain DNO approval under G99 before connection

C.No notification is required for domestic systems

D.Notify the supplier only, not the DNO

Explanation: Systems exceeding 16 A per phase fall under Engineering Recommendation G99, which requires a formal application to and approval from the Distribution Network Operator (DNO) before the system is connected and energised.

About the C&G 2922-34 Solar PV Practice Questions

Verified exam format metadata for City & Guilds 2922-34 Level 3 Award in the Installation and Maintenance of Small Solar Photovoltaic (PV) Systems is pending. The practice questions above remain available while official exam length, timing, passing score, fee, and administrator details are reviewed.

100+ Free C&G 2922-34 Solar PV Practice Questions

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Key Facts: C&G 2922-34 Solar PV Exam

Sample C&G 2922-34 Solar PV Practice Questions

About the C&G 2922-34 Solar PV Practice Questions