Understanding the HGV 'Show Me, Tell Me' Component
The HGV driving test includes a crucial segment known as the 'show me, tell me' section. This part of the examination is designed to assess your understanding of vehicle safety and condition, ensuring you can perform essential checks before and during your drive. It's not just about knowing the rules; it's about demonstrating practical awareness of your vehicle's roadworthiness.
- Demonstrate knowledge of vehicle safety checks.
- Understand examiner expectations for HGV tests.
- Prepare for specific 'show me' and 'tell me' questions.
- Ensure vehicle compliance and safety for road use.
During the test, the examiner will ask you questions about how you would check various aspects of your vehicle's safety and condition. Some questions will require you to physically show the examiner something on the vehicle (the 'show me' part), while others will require you to explain how you would carry out a check or what you would look for (the 'tell me' part). Failing to answer these correctly can result in penalty points or even disqualification from passing the test.
This section is fundamental to safe driving.
Mastering these questions is a significant step towards passing your HGV test and, more importantly, becoming a responsible and safe driver. It’s about building good habits that extend beyond the test itself, forming the bedrock of professional driving.
What is the Purpose of 'Show Me, Tell Me' Checks?
The primary purpose of the 'show me, tell me' questions is to ensure that drivers have a thorough understanding of their vehicle's safety features and are capable of identifying potential defects that could compromise road safety. For heavy goods vehicles, where defects can have more serious consequences, this knowledge is paramount. It covers checks that should be performed daily before driving, as well as checks related to specific systems that might be required during a journey.
These checks are not arbitrary; they mirror the daily walk-around inspections that professional HGV drivers are legally required to undertake. By embedding these questions into the driving test, the Driver and Vehicle Standards Agency (DVSA) confirms that new HGV drivers are equipped with the necessary skills and knowledge to maintain vehicle safety standards on public roads. It reinforces the idea that driver responsibility extends to the mechanical well-being of the vehicle.
Think of it as your initial safety briefing for the vehicle you are about to operate.
The ability to confidently answer these questions demonstrates to the examiner that you possess the competence and diligence required for operating large, heavy vehicles, contributing to overall road safety for everyone.
Essential 'Tell Me' Questions and Answers
The 'tell me' questions require you to explain how you would check something or what you would look for. You don't typically need to physically point to the component unless the question explicitly asks you to. The focus here is on your knowledge and understanding of the procedure and the safety implications.
Brakes System Checks
You'll likely be asked about checking your brakes. For instance, the examiner might ask: 'Tell me how you would check that the parking brake/handbrake is applied correctly.' Your answer should cover the key checks: you would apply the parking brake firmly, and then test it by trying to move the vehicle forward slightly (using a low gear like first gear) to ensure it holds the vehicle securely. You should also mention that you would check for any warning lights on the dashboard related to the braking system.
Another common question relates to the service brake. You might be asked: 'Tell me how you would check that the service brake is working before starting a journey.' The standard procedure here is to explain that after starting the engine, you would typically press the brake pedal. It should feel firm and not spongy. You should also mention that the vehicle should not pull to one side when braking and that there should be no unusual noises. For air brake systems, you would also check for any air leaks and ensure the air pressure is at the correct level, typically indicated on the dash.
Demonstrate understanding of the safety system.
It's vital to convey that you understand the critical nature of the braking system and the steps involved in verifying its operational status before moving off. This includes not only the mechanical action but also the visual cues like warning lights.
Tyre Safety
Tyre condition is another major focus. A typical 'tell me' question could be: 'Tell me how you would check the tyres to ensure they are legally and safely fitted.' Your answer should include checking for: tread depth (mentioning the legal minimum of 1mm across the breadth of the tyre and in every main tread groove), any cuts, bulges, or damage to the sidewalls, and ensuring the tyres are inflated to the correct pressure for the vehicle's load, which you'd check against the manufacturer's specifications.
You should also mention checking that the tyre size is correct for the vehicle and that the wheel nuts are securely tightened. It’s important to show you know where to find the correct tyre pressures, often listed in the vehicle's manual or on a sticker inside the cab or on the fuel filler cap.
Convey a thorough understanding of tyre requirements.
Fluid Levels
Questions about fluid levels are also common. For example: 'Tell me where you would check the engine oil level and how you would check that the engine oil is at a safe level.' You'd explain that you would locate the dipstick, pull it out, wipe it clean, reinsert it fully, and then pull it out again to check the level. It should be between the minimum and maximum marks. Ensure you mention the engine should be cool or at operating temperature as per the manufacturer's instructions (often cold or left to stand for a few minutes after running).
Similarly, you might be asked about other fluids: 'Tell me how you would check the windscreen washer fluid level.' This is usually a straightforward check by locating the reservoir, which is typically marked with a windscreen and spray symbol, and visually checking if it's topped up. You should also mention the importance of using appropriate washer fluid, especially in freezing conditions.
Safety is in the details.
Covering engine oil, coolant, brake fluid, and power steering fluid (where applicable) demonstrates a comprehensive approach to vehicle maintenance. Always refer to the vehicle's manual for precise locations and procedures, as HGVs can vary.
Lights and Indicators
Checking the lights is vital for visibility and safety. A question might be: 'Tell me how you would check that the headlights and tail lights are working.' You'd explain that you would turn the ignition and lights on and then walk around the vehicle to check all lights, including headlights (dipped and main beam), tail lights, brake lights, and indicators. For brake lights, you might need an assistant to press the pedal, or you could check their reflection in a wall or another vehicle.
You might also be asked about checking the operation of your hazard warning lights and horn. Explain that you would activate them to ensure they are functioning correctly and are audible and visible to other road users.
Visibility is paramount for all road users.
Being able to articulate these checks clearly shows you prioritise safety in all conditions, day or night.
Essential 'Show Me' Questions and Demonstrations
The 'show me' questions require you to physically demonstrate a check or point to a specific component on the vehicle. This is where your practical understanding comes into play. You'll need to be familiar with the layout and operation of the HGV you're being tested in.
Windscreen and Mirrors
A common 'show me' question is: 'Show me how you would check the windscreen for damage.' You would visually inspect the windscreen, pointing out any chips or cracks, and explain that you would check that it is clear and free from obstructions. You’d then explain that damage affecting the driver's field of vision, or anything over a certain size (e.g., a 10mm chip in the driver's line of sight or a 40mm chip elsewhere), would render the vehicle illegal and unsafe.
You might also be asked: 'Show me how you would clean the windscreen.' This involves demonstrating the use of the windscreen wipers and washer fluid. You'd turn on the ignition, operate the washer fluid stalk to spray the fluid, and then operate the wipers to clear the screen, explaining that you would ensure the screen is left clean and streak-free.
Demonstrate practical application.
Similarly, you might be asked to show how you would set the exterior mirrors. You would adjust them to ensure you have a clear view of the traffic to the sides and rear, and also demonstrate the adjustment of any blind-spot mirrors.
Indicators and Lights
You could be asked: 'Show me where you would check the brake lights are working.' While you can't easily see them yourself, you would explain that you would activate the brake pedal (or ask the examiner to check) and then indicate that you would then visually check the rear of the vehicle to ensure they illuminate. If you have a trailer, you would also need to check the trailer brake lights.
Another demonstration might be related to indicators: 'Show me how you would operate the front or rear fog lights.' You would locate the switch or button for the fog lights and demonstrate activating them, explaining when they should be used (e.g., in fog or heavy rain where visibility is severely reduced) and when they should be switched off.
Safety through visibility.
It’s essential to know the location of all light controls and how to operate them correctly. You should also be able to explain the purpose and correct usage of each light.
Horn and Other Controls
You may be asked: 'Show me how you would operate the horn.' This is straightforward; you would press the horn button or activate the horn control and explain that it's used to alert other road users to your presence in a situation where it's necessary for safety.
Know your controls.
Familiarise yourself with the location of all the controls within the cabin. This includes hazard warning lights, which you might be asked to show how to operate, explaining their use in emergency situations or when stationary.
Tyre Wear and Condition
While 'tell me' covers the explanation of checking tyre tread depth, a 'show me' might be more specific. For instance: 'Show me how you would check the condition of the tyres.' You would get out of the cab and visually inspect the tyres, pointing out the tread depth (perhaps using a tread depth gauge if one is available and you've been shown how to use it), checking for any cuts, bulges, or foreign objects embedded in the tread or sidewalls.
The condition of your tyres is critical.
You would then explain that you are checking that the tyres are free from damage, have adequate tread depth, and are correctly inflated. This practical demonstration reinforces your verbal explanation.
Vehicle Safety Checks: Beyond the Test
The 'show me, tell me' questions are not just a hurdle to overcome for the HGV test; they are fundamental to the daily responsibilities of any professional driver. Implementing these checks consistently before every journey is a legal requirement and a critical habit for ensuring road safety.
Daily Walk-Around Inspections
A comprehensive daily walk-around inspection involves checking more than just the items covered in the 'show me, tell me' questions. This typically includes examining the bodywork for damage, ensuring all lights and reflectors are clean and functioning, checking the condition and security of wheels and tyres, inspecting the suspension, checking the exhaust system, and verifying the security of any load. For vehicles with specific safety equipment, like tail lifts, these also require pre-use checks.
Routine checks prevent major issues.
Understanding your vehicle's specific requirements is key. Consult the vehicle's manual for a detailed checklist. Many operators provide specific inspection sheets for drivers to complete and sign, confirming that the checks have been performed. This documentation is important for liability purposes.
Understanding Vehicle Systems
For HGVs, especially those with complex systems like air brakes, understanding how these systems work and what to look for is crucial. Air brakes, for example, require checks for leaks, proper function of the air compressor, and ensuring the air pressure builds up correctly. Warning devices, such as the low-pressure warning buzzer or visual indicators, are vital safety features that must be understood.
Knowledge builds confidence and safety.
Drivers should also be aware of the vehicle's load security. Depending on the type of goods being transported, specific lashing, sheeting, or securing methods may be required. Failure to properly secure a load can lead to accidents and damage.
Reporting Defects
A critical part of a driver's responsibility is knowing what to do if a defect is found. If any safety-critical item is found to be faulty during a pre-use inspection, the driver must report it immediately to their supervisor or the fleet manager. The vehicle must not be driven until the defect is rectified and the vehicle is deemed safe to operate. This reporting procedure is often formalised, requiring drivers to complete a defect report form.
Never compromise on safety.
Understanding the reporting chain and the importance of not driving a vehicle with a known safety defect is as crucial as performing the checks themselves. It ensures that issues are addressed promptly, preventing potential accidents and maintaining compliance with road transport regulations.
Preparing for Your HGV Driving Test
Passing your HGV driving test requires thorough preparation, and the 'show me, tell me' questions are a significant part of that. Treating these questions as a mere formality is a mistake; they are designed to gauge your commitment to safety.
Familiarise Yourself with the Test Vehicle
The specific vehicle you use for your test will be the one you'll likely drive regularly, or a very similar model. Spend time getting acquainted with its layout and controls. Know where everything is: dipsticks, fluid reservoirs, horn, lights, windscreen wipers, fog lights, hazard warning lights, and any other safety-related controls. Practice performing the checks verbally and physically until they become second nature.
Know your test vehicle inside out.
If possible, practice the 'show me' elements on the actual vehicle you'll be using for the test. This ensures you're familiar with the specific location of components and how they operate, removing any uncertainty on the day.
Study Official Guidance
The DVSA provides official learning materials and guidance for HGV tests. These resources detail the types of questions you might be asked and the expected standard of answers. They are the most reliable source of information and should form the basis of your preparation. Understand the legal requirements for tyre tread depth, lighting, and general roadworthiness.
Official guidance is your primary resource.
Many driving schools also offer specific preparation courses or materials that cover the 'show me, tell me' elements in detail, often using mock test scenarios. These can be invaluable for consolidating your learning.
Practice Explaining and Demonstrating
Don't just memorise answers; understand the 'why' behind each check. When explaining a check, articulate clearly and concisely. For 'show me' questions, perform the action smoothly and purposefully. If you're practising with a friend or instructor, ask them to quiz you repeatedly. Try explaining the checks to someone who knows nothing about vehicles to see if your explanation is clear and understandable.
Clarity and confidence are key.
Consider recording yourself performing the 'show me' demonstrations and explaining the 'tell me' checks. Watching these back can help you identify areas for improvement in your presentation and clarity. This self-assessment can be incredibly effective.
Understand the Implications of Defects
Beyond just identifying a defect, it's important to understand its potential impact on safety and legality. For example, knowing that a chip in the windscreen of a certain size can cause it to fail the test, or that worn tyres can lead to aquaplaning, demonstrates a deeper understanding that examiners look for.
Safety implications are crucial.
This holistic approach to preparation will not only help you pass the 'show me, tell me' section but will also equip you with the knowledge and confidence needed for a long and safe career as an HGV driver.
Navigating 'Show Me, Tell Me' Variations
While the core principles of the 'show me, tell me' questions remain consistent, the exact phrasing and specific components the examiner asks about can vary. This is intentional, designed to ensure you understand the underlying safety principles rather than just memorising a fixed set of answers.
Different Phrasing, Same Principle
An examiner might ask: 'How would you check your headlights?' or 'Tell me about your lights.' The expectation is that you cover all relevant lights – headlights (dipped and main beam), sidelights, indicators, brake lights, fog lights, and hazard lights – and explain how you'd check their function and condition. Similarly, 'Show me how you check your tyres' might require you to focus on tread depth, sidewall condition, or general wear and tear.
Be prepared for variations.
The key is to understand the category of check (e.g., braking system, lighting, tyres, fluids) and be able to articulate or demonstrate the essential safety checks associated with it, regardless of the precise wording. This demonstrates a robust understanding of vehicle safety.
Focus on Critical Safety Systems
The DVSA prioritises checks related to the most critical safety systems. These include brakes, steering, tyres, lights, and mirrors. Expect a significant portion of the questions to revolve around these areas. However, don't neglect other important checks like windscreen cleanliness, washer fluid levels, and the operation of safety devices like the horn and hazard lights.
Critical systems are paramount.
If you are unsure about a question, it's better to ask for clarification than to provide an incorrect answer. The examiner is there to assess your knowledge, not to trick you. Asking for clarification shows you are taking the question seriously.
What to do if You Don't Know
If you genuinely don't know the answer to a 'tell me' question, or cannot demonstrate a 'show me' check correctly, it's essential to be honest rather than guess. You can state that you are unsure of the exact procedure but would typically consult the vehicle's manual or a supervisor. However, try to demonstrate knowledge of related checks. For example, if you forget how to check the coolant level, you might explain how you would check the engine oil, showing you understand the principle of checking fluid levels.
Honesty is valued.
While honesty is appreciated, remember that significant gaps in knowledge concerning critical safety systems will result in failure. The aim is to demonstrate a competent level of understanding, not necessarily encyclopaedic knowledge of every single nut and bolt.
The Role of the Driving Instructor
Your HGV driving instructor is your best resource for understanding the specific 'show me, tell me' requirements for your test. They will tailor your training to cover the most frequently asked questions and demonstrate the correct procedures on the type of vehicle you will be using. They can simulate test conditions, providing invaluable practice and feedback.
Your instructor is your key guide.
Regularly ask your instructor to quiz you on 'show me, tell me' questions. Treat each quiz as a mini-test to build your confidence and identify any remaining weak spots. Their experience with the testing process is vital in preparing you for success.
Common Mistakes to Avoid
Even well-prepared candidates can make mistakes during the 'show me, tell me' section of the HGV driving test. Awareness of these common pitfalls can help you steer clear of them and ensure a smoother test experience.
Memorising Without Understanding
One of the biggest mistakes is simply memorising answers without understanding the underlying safety reasons. Examiners can often detect this, and if you're asked a slightly different question or need to apply your knowledge in a practical scenario, a rote-learned answer falls short. For instance, just saying 'check the tyre tread' isn't as good as explaining 'check the tread depth is above the legal minimum of 1mm across the breadth of the tyre and in all main tread grooves, and look for any cuts, bulges, or damage to the sidewall.'
Understanding is paramount.
Focus on the principle behind each check. Why is it important? What could go wrong if it's not done? This deeper understanding will allow you to adapt your answers and perform checks more confidently.
Incorrectly Identifying Components
For 'show me' questions, incorrectly pointing to a component or demonstrating the wrong action is a common error. This might happen if you're unfamiliar with the specific vehicle or if you're nervous. For example, confusing the engine oil dipstick with the transmission fluid dipstick, or trying to show the rear fog light switch when it's actually located elsewhere on the dashboard.
Precision matters.
Spend ample time familiarising yourself with the test vehicle. If you are unsure about a specific part, ask your instructor to show you again. Knowing the precise location and function of each component is crucial for a successful demonstration.
Vague or Incomplete Answers
Hesitating too long, giving overly brief answers, or failing to cover all necessary aspects of a check can lead to lost marks. For example, when asked to check the service brakes, only mentioning that the pedal feels firm is insufficient; you should also mention checking for sponginess and the vehicle pulling to one side. For 'show me' questions, a quick glance might not be enough; a thorough visual inspection is usually required.
Be thorough and precise.
It’s important to provide a comprehensive answer that covers all essential safety aspects of the check. If you're unsure how much detail is required, err on the side of providing more information rather than less, as long as it's accurate and relevant.
Forgetting to Check Indicators or Hazards
While seemingly straightforward, candidates sometimes forget to mention or demonstrate checks for indicators, hazard lights, or the horn. These are vital for communicating with other road users and ensuring safety. An examiner might specifically ask about these, or they might be part of a broader check. Failing to mention them means you haven't demonstrated a complete understanding of the vehicle's safety signalling systems.
Don't overlook the basics.
Ensure that your preparation covers all categories of checks, including signalling and audible warning devices. These are fundamental to safe operation.
Nervousness Affecting Performance
Test day nerves can cause even the most prepared candidate to falter. Forgetting an answer, fumbling a demonstration, or becoming flustered is understandable, but it can impact your performance. Developing confidence through practice and preparation is the best way to mitigate this.
Practice builds composure.
Simulate test conditions as much as possible during your practice sessions. This helps you to become accustomed to performing under pressure and to develop coping mechanisms for moments of doubt or anxiety.
HGV Driving Test: More Than Just 'Show Me, Tell Me'
While the 'show me, tell me' questions are a vital component, they represent only one aspect of the HGV driving test. A strong overall performance requires competence across all sections of the examination.
The Driving Ability Section
The main part of the test involves actual driving. This assesses your ability to handle the HGV safely and competently in various traffic conditions. It includes manoeuvres such as bay parking, reversing around a corner, or pulling up on the right-hand side of the road and reversing for approximately 50 metres, as well as general road driving. The examiner will look for your observation skills, anticipation of hazards, vehicle control, and adherence to road traffic laws.
Road skills are paramount.
Your ability to apply your knowledge from the 'show me, tell me' checks – such as ensuring your lights are working and your tyres are in good condition – directly contributes to your overall safe driving performance. A vehicle with serious defects identified during the 'show me, tell me' section could potentially lead to an immediate fail before you even begin the main driving part.
The Theory Test
Before you can even attempt the practical HGV driving test, you must pass the theory test. This consists of two parts: multiple-choice questions covering road rules, hazard perception, and vehicle operation, and a case study that requires you to analyse a scenario and answer questions based on it. The 'show me, tell me' questions are rooted in the knowledge tested in the theory part, particularly the sections on vehicle safety and maintenance.
Foundational knowledge is essential.
A thorough understanding of the Highway Code and specific HGV regulations, which are covered in the theory test, provides the necessary foundation for answering the 'show me, tell me' questions correctly and for performing safe driving manoeuvres.
The Driver CPC (Certificate of Professional Competence)
For professional HGV drivers, passing the initial driving test is just the beginning. To drive professionally, you also need to obtain and maintain your Driver Certificate of Professional Competence (CPC). This involves further training and periodic assessments to ensure drivers' knowledge and skills remain current. The 'show me, tell me' principles are reinforced throughout CPC training, emphasising continuous professional development in vehicle safety and maintenance.
Professionalism requires ongoing learning.
The 'show me, tell me' aspect of the practical test is an early indicator of your commitment to this ongoing professional standard. It demonstrates an awareness that being a professional driver involves more than just operating the vehicle; it includes ensuring the vehicle itself is safe and compliant.
Your Instructor's Role
Your HGV driving instructor plays an indispensable role in preparing you for all aspects of the test, including the 'show me, tell me' component. They provide targeted instruction, feedback, and practice, helping you to build the confidence and competence required. They will guide you on the specific requirements for the test and the vehicle you will be using.
Guidance is key to success.
Beyond the 'show me, tell me' questions, your instructor will help you refine your driving skills, master manoeuvres, and develop the correct mindset for test day. Their expertise ensures you are as well-prepared as possible for every element of the HGV driving test.