Level 3 Electrical Installation

Level 3 Electrical Installation Practice Test

There are 30 questions in this Level 3 Electrical Installation (302) Mock Test. You must score 60% (18 out of 30) to pass. You may review answers after each question by clicking the 'check answer' button or you can wait until the end of the test for your final score. Good luck!

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The Level 3 Electrical Installation C&G 2365 Diploma in Electrical Installation, is the second, tangible step towards prospective electricians becoming fully qualified. This course, facilitated by the City & Guilds, is a follow-on qualification from the C&G 2365 Level 2 diploma. However, candidates are encouraged to tackle these elements in unison, as the City & Guilds also offer a combined Level 2 & 3 course package. The vast majority of learning facilitators offer the dual 2365 qualification.The City and Guilds is an industry-recognised skills and certification provider. Their respective courses are deployed across a number of sectors, and are renowned for delivering quality learning programmes. There are other accredited skills bodies available, such as the EAL. However, given the immense popularity of City & Guilds courses, this article focuses exclusively on their version of the Level 3 diploma.

Apprenticeships and ‘front-loaded’ training

In similarity to all electrical training qualifications, participants in attendance can be loosely split into two categories. One set of individuals will be aligned to ongoing apprenticeship schemes, whilst the others will be engaging in a ‘front-loaded’ training plan.


Apprentices undertake these modules as part of their fixed, pre-meditated learning journey. Apprenticeship programmes are usually favoured by recent school leavers or young students, eager to continue some form of classroom-based learning. By mixing theoretical study with practical on-site employment, these individuals arguably enjoy the best of both worlds. Furthermore, as they’re already contracted to an electrical firm, there is good chance of onwards job security upon qualification. Moreover, training fees are covered by their parent companies.

However, although substantial funds are saved, job salaries are usually fairly limited in scope. Most apprentices, given their integrated collegiate commitments and lack of experience, will earn less than minimum wage. Yet, this should be clearly viewed within the wider context of potential savings, and also projected career earnings. The duration of an apprenticeship programme is typically between 3-4 years. Therefore, this period only represents a small percentage of their future working life, which is based in an industry offering competitive financial compensation. Furthermore, employers can now apply for a government grant, positioned to support apprentices through their training plan. This may serve to enable some additional funds to be channelled into apprentice pay packets.

Front-loaded training

Those taking front-loaded training routes will most likely be pursuing a complete career change, or at least transference from a different trade. All courses must be self-funded, which means re-training can become an extremely expensive endeavour.

Most individuals on this learning path are encouraged to select a unified Level 2 & 3 2365 course. The combined qualification presents a streamlined version of the content covered in each individual course. It does this without compromising on core theory detail, skills development, and tutor support. Additionally, candidates can usually engineer a cost reduction by embracing this option. However, savings will most likely be relatively modest in nature.

The advantage of embracing the ‘front-loaded’ pathway, is that individuals can determine the pace and intensity of their training programme. Given that many candidates undertaking this route will have personal commitments, learning providers are usually flexible and accommodating. This offers a number of supportive opportunities for training. Candidates can take sessions in batches, racing through course materials and acquiring certification quickly. Alternatively, they can stretch modules out over a prolonged period of time. Furthermore, the capacity to engage in remote learning is continually on the rise, accentuated by the impact of the recent coronavirus pandemic. This is perfect for those with childcare responsibilities.

Often, to supplement qualification costs, these individuals will need to maintain their current jobs. Therefore, for some, having the ability to drift seamlessly between personal and training duties is absolutely critical.

Course content, structure and costs

For most, completion of this course will take around 33 days, spread out over an extended period of time (i.e. this will not be delivered in consecutively). Apprentices will complete this qualification within a pre-planned timeframe. For those on front-loaded paths, qualification duration will clearly also be dependent on personal circumstances. On average, most of these candidates conclude all learning, including the course’s concluding assessments, within 3-6 months.

It’s worth noting that course length, and indeed associated fees, are noticeably lower than the 2365 Level 2 Electrical Installation diploma. This is because the entry-level qualification requires delegates to be given a comprehensive grounding on electrotechnical theory. As this knowledge has been suitably acquired prior to the Level 3 diploma, there is clearly less foundation-level focus required. This factor is reflected in the cost attached to each course. A typical, full, Level 2 diploma 2365 qualification will set candidates back upwards of £5,000. The Level 3 equivalent is a little more reasonable, registering around the £3,300 price mark. The combined package is therefore usually charged at around £8,000-£8,500.


The C&G 2365 Level 3 module is a significant step-up in complexity from its Level 2 counterpart. The course develops on the electrotechnical themes discussed in the previous module. The following topics are therefore covered in more detail, with bracketed information denoting the style of learning:

  • Health and safety in Building Services Engineering (practical and theory-based training)
  • Principles of electrical science (theory-based, but with practical demonstrations involved)
  • Electrical installations: inspection, testing and commissioning (practical & theory-based training)
  • Electrical installations: fault diagnosis and rectification (practical & theory-based training)
  • Understanding the core principles and requirements of Environmental Technology Systems (theory-based)
  • Design of electrical systems (practical & theory-based training)

There is also specific coaching on career awareness, and the importance of effective communication. This aims to prepare delegates for life on a construction site, ensuring they’re aware of how to engage, inspire and interact with colleagues and leadership teams. Furthermore, this allows candidates to gain an early insight into the volume of opportunities available throughout the sector. There are a vast array of electrical disciplines present in the industry, which require it’s respective workers to be equipped with specialist skill-sets.

Assessment schedule

At the end of the course, delegates will be asked to undertake a number of online and practical examinations relating to the subject matter listed above. Therefore, candidates should ensure they’re well-positioned to thoroughly revise all relevant information, prior to sitting their assessments.

These tests are designed to sense-check theoretical understanding, gauge practical capability, and ensure delegates can perform when under pressure. They are formatted in several different ways, which will target different skills and competencies. The C&G 2365 Level 3 presides over six different examination units, and includes a mixture of assignments, multiple-choice tests, and practical examinations. Each style of assessment should be approached in a slightly different way.

Multiple-choice tests

Multiple-choice tests must not be under-estimated. Questions set will not just strength-test basic knowledge, but will also demand delegates work through electrical formulas to acquire the correct answer. All of C&G’s multiple-choice exams are kitted with an integrated ‘flagging’ tool. This useful mechanism allows candidates to re-visit difficult questions at the conclusion of their test. Therefore, individuals can avoid losing momentum or becoming ‘stuck’ on certain answers.

Written assignments

Written assignments require candidates to produce responses in narrative form. This means that answers need to flow seamlessly, be well-structured, and free from grammatical errors. Given that this form of writing may not have been experienced since secondary education, individuals may want to practice their technique prior to sitting this specific test.

Practical assessments

Finally, a candidate’s physical skills are put squarely under the microscope. Invigilators will inspect whether appropriate electrical sequencing has been undertaken, within a variety of allocated electrotechnical disciplines. This may create some nervousness or anxiety, as being observed is not usually a particularly pleasant experience!

Candidates should remember that the tasks they’ll be asked to perform will have already been practiced throughout the course, or perhaps even in employment. Therefore, if you’ve made it this far, there’s a good chance you’ve already demonstrated these skills on numerous occasions. Furthermore, no learning provider will risk their pass rate by sponsoring ill-prepared candidates through to assessment. You’re there on merit! Try to remain calm, controlled and confident- the rest should look after itself!

Unit detail

In order to progress onto the final NVQ/AM2 stage of the training journey, delegates will need to successfully navigate all assessment criteria. In total, there are seven, separate assessments within the aforementioned six focus units. These are listed below, with testing format in brackets:

  • 301: Understanding the fundamental principles and requirements of Environmental Technology Systems (multiple-choice exam)
  • 302: Principles of electrical science (practical assessment and written assignment)
  • 303: Electrical installations: fault diagnosis and rectification (practical assessment and written assignment)
  • 304: Electrical installations: inspection, testing and commissioning (practical assessment and written assignment)
  • 305: Electrical systems design (written assignment)
  • 308: Career awareness in building services engineering (written assignment)

Useful literature

To support candidates throughout the C&G 2365 Level 3 Electrical Installation course, and also to prepare effectively for its associated assessments, the following resource materials are widely recommended:

The IET Guidance Note 3: Inspection & Testing, 8th Edition

This article walks electrical students through the key elements of initial verification, inspection, testing, and commissioning. It also offers guidance on the resultant certification required after completing verification and periodic testing.

Inspection and testing are key electrotechnical disciplines. Given the difficulty level of this activity, advanced tutoring on this topic is usually reserved for more experienced electricians. Therefore, candidates will feel a tangible difference on the inspection and testing content in the Level 2 diploma, versus the Level 3 follow-on course.

For reference, the IET, or, using it’s full name, the Institute of Engineering and Technology, are a global electrotechnical body empowered to provide advice to industry stakeholders. They also provide research and analysis to aid governments in their making of relevant policy decisions.

The IET 18th Edition Guide: Requirements for Electrical Installations (bs7671:2018)

This book provides the definitive guide on compliance measures relating to the installation of electrical instalments. This text is often referred to as the ‘wiring regulations’. It details the theory, approved practices, and principles aligned to electrotechnical practice. This set of standards are referred to as bs7671.

The IET release editions periodically, allowing adjustments to be made based on new discoveries and changing legislation. It is the responsibility of all electricians to stay across these updates, and ensure they remain compliant with the latest guidelines. The latest publication was launched in 2018 (hence bs7671:2018).

Basically, this guide serves as the holy grail for all electrical professionals!

The IET On-Site Guide (bs7671:2018, 7th Edition)

This is a shortened, condensed version of the full, 18th edition wiring regulations guide. Although this should not be used as a substitute for the unabridged edit, it does provide an easy reference point for those quickly sense-checking information. Furthermore, it contains a number of supporting charts and tables, detailing electrical formulas and algorithms. This may be suitable for more visual learners.

This article works as a perfect accompaniment to those physically conducting work on-site. Indeed, its modest size and concise information helps to provide swift, accessible answers to problems that arise whilst ‘on-the-job’

The City & Guilds Textbook: Book 2 Electrical Installations for Level 3 Diploma (2365)

This textbook, created locally by the skills provider, offers a comprehensive overview of course content, structure and format. Furthermore, it includes mock exam questions, and useful revision hints and tips. Although this isn’t a critical piece of literature, it will certainly serve to support delegates through their course.


The C&G 2365 Level 3 Electrical Installation qualification is the intermediate step towards acquiring fully-fledged electrician status. Students are encouraged to take this course as part of a combined learning module, which will ultimately save time, money and energy. Content focuses on the original topics encountered within the Level 2 diploma course, and serves to strengthen knowledge in a range of electrotechnical theories.

By reviewing enhanced detail around inspection and testing, approved health and safety practices and fault diagnosis, delegates will emerge from the C&G 2365 Level 3 qualification feeling well-equipped to progress onto the next stage of training.

The rigorous assessment schedule attached to this module is not for the faint-hearted. A range of multiple-choice, written, and practical tests will present significant challenges to most. However, through careful revision using the listed resources, and an assured approach on the day, candidates should be well-positioned to overcome these obstacles.

Also, given the complexity of the theory discussed, delegates need to remain extremely focused throughout their course sessions. It’s always useful to actively engage in debate with piers and tutors, as this often boosts understanding and confidence.

Next steps

On receipt of the course’s certification, individuals can then apply to undertake the C&G 2357 Level 3 NVQ/AM2. This is the final, formal stage in the quest to becoming an electrical professional. Whether you’re an apprentice or front-loaded trainer, all prospective electricians must pass the respective C&G 2365 courses before progressing onto the last qualification.

We hope this guide has served to facilitate a better understanding of the components of the C&G 2365 Level 3 Diploma qualification. By analysing its cost, timeframe, content, and assessment structure, prospective delegates will hopefully feel ready to embrace this challenging course. If you require any further information, then please liaise with a course tutor, industry professional, or visit the City & Guilds website. The relevant page can be found here.

We wish you the best of luck on your C&G 2365 Level 3 diploma, and hope you pass its associated assessments with flying colours!