Braking Systems PCV by theorytestuk.co.uk | Aug 20, 2023 | 0 comments Welcome to your Braking Systems PCV 1. 3. 'Brake fade' is a loss of effectiveness of the brakes when they overheat. When would 'brake fade' be most likely to happen? On a long journey On a long downhill gradient On the approach to hazards On a long uphill gradient 2. 27. You're stationary. The brake air-pressure warning light comes on. Why should you keep the parking brake on? Because the vehicle will suddenly roll backwards Because it will cause the air pressure to rise Because the service brake may not stop you Because it will make the warning light go out 3. 18. You've just started the engine. What must you do if the brake air-pressure warning light is showing? Report it as a fault Keep the parking brake on Switch your engine off Engage the clutch 4. 37. Your vehicle is fitted with an air-assisted hydraulic braking system. What would warn you that the air compressor is not working? The brake pedal feels spongy when pressed The brake pedal has little resistance The brake pedal feels hard when pressed The brake pedal travels a long way 5. 28. What should you avoid when using an independent endurance brake (retarder) on slippery roads? The front wheels spinning The drive wheels locking Brake-pad wear Anti-skid road surfaces 6. 41. When approaching a long hill, you should take note of any early warning signs. Reduce your speed and select the appropriate gear in good time. Using an endurance brake (retarder), if fitted, will help control your speed. Increased effectiveness Reduced effectiveness Reduced brake wear Increased brake wear 7. 22. You're about to drive a vehicle fitted with hydraulic brakes. What should you check before driving the vehicle? The hydraulic-brake fluid level The power-steering fluid level The cooling-system fluid level The windscreen-washer fluid level 8. 15. What should you do when an air-pressure warning device activates? Continue to drive the vehicle Drain the air tanks Stop and have the fault put right Pump the brake pedal repeatedly 9. 14. Your vehicle is fitted with an anti-lock braking system. When should you check that it's working properly? Before each service At the start of each working day At the start of each working week Before every journey 10. 21. You're about to start a journey in very frosty weather. What's the likely cause of low air-brake pressure? Engine temperature too low Weak engine anti-freeze mixture Brake pedal needs adjustment Frozen moisture in the storage tanks 11. 20. Where would you see an escape lane? Outside a fire station Alongside a bus lane Before a motorway exit Down a steep hill 12. 5. Your vehicle is fitted with an anti-lock braking system. What's it designed to allow you to do? Drive at faster speeds Brake much later than normal Apply the brakes more quickly Stop safely in an emergency 13. 43. What can coasting downhill seriously affect? The air brakes The cooling system The tachograph The electrical systems 14. 44. Your vehicle is fitted with air-assisted hydraulic brakes. What would warn you that there isn't enough air in the system? An increase in pressure on the air gauge A buzzer or light The exhaust brake won't work Brake fade 15. 10. You're about to move off in a vehicle that has automatic transmission. What must you do before you select 'D' (drive)? Put your foot on the footbrake Signal to move off Alter your seat position Adjust your mirrors 16. 25. When should an endurance brake (retarder) be used? On motorways only When braking quickly When you stop or park On long downhill slopes 17. 2. Which component will last longer when you use a retarder? The brake linings The catalytic converter The exhaust system The transmission 18. 1. What should anti-lock brakes let you do when you have to stop in an emergency? Brake more gently Brake much later Maintain steering control Stop over a long distance 19. 33. You're about to drive a vehicle fitted with air-assisted hydraulic brakes. Why might the brake pedal feel hard when you press it? The air compressor is not working The pedal movement needs adjusting The brakes are locked on fully The brake-fluid reservoir is empty 20. 47. What should you do if the brake air-pressure warning light comes on while you're driving? Stop and get help without delay Report the fault when you return to your depot Build up the pressure by accelerating Drain the air tanks and continue normally 21. 32. How can you help to prevent 'brake fade'? Use the endurance brake Apply the parking brake Select neutral for a short distance Repeatedly pump the brake pedal 22. 6. Which coloured band on the rev counter makes the best use of engine braking? Blue Red Amber Green 23. 16. A lorry is overtaking you on a two-lane motorway. What should you do if it doesn't have the speed to get past? Continue at the same speed Be prepared to reduce your speed Increase your speed and force the lorry to drop back Brake hard to allow the other driver to cut in 24. 12. Where must extra care be taken when using an endurance brake (retarder)? On uneven roads On slippery roads On downhill gradients On uphill gradients 25. 46. When would you use an escape lane? When motorways merge When carrying a dangerous cargo When your brakes have failed When emergency repairs are needed 26. 17. What should you do when making a short stop, facing uphill? Hold the vehicle on the clutch Hold the vehicle on the footbrake Select neutral and apply the parking brake Apply the parking brake after stopping 27. 42. When does 'brake fade' occur? When the brakes get too hot When the brakes get too cold When the brakes get too dry When the brakes get too wet 28. 39. Your vehicle is fully loaded. Where should you be braking when dealing with bends? As close to the bend as possible As you start to turn the wheel When halfway around the bend When driving in a straight line 29. 4. What causes 'brake fade'? Continuous use of the brakes Repeated pumping of the brakes Loss of air pressure in the system Badly worn brake pads 30. 8. You're about to drive an unfamiliar vehicle. What should you do if you think there may be moisture in the air-brake reservoir? Assume the system has automatic drain valves Find out whether you need to drain the system manually Nothing; it's the vehicle owner's responsibility Leave the engine running for a while before driving 31. 36. You're driving down a long hill. What should you use to prevent the brakes from overheating? The anti-lock braking system The footbrake The secondary brake The endurance brake (retarder) 32. 29. Your vehicle is fitted with air-assisted hydraulic brakes. What fault would you suspect if the brake pedal becomes hard to press? The brake system has a loss of air pressure The brake linings are worn The brake shoes need adjusting The brake system requires more fluid 33. 19. What system is used to control a vehicle's speed without using the footbrake? A secondary brake An endurance brake (retarder) A differential lock An emergency air system 34. 13. What's the most powerful brake on a bus? Secondary brake Anti-lock braking system Endurance brake (retarder) Service brake 35. 34. Your vehicle is fitted with hydraulic brakes. Why might the brake pedal go down too far when it's pressed? There's too much fluid in the braking system The pedal travel requires adjustment The vacuum exhauster isn't working There isn't enough fluid in the braking system 36. 45. When should an anti-lock braking system (ABS) warning light turn off? When the brakes are used for the first time When the ABS comes into operation When road speed is 6 mph (10 km/h) or more When the secondary braking system is used 37. 23. What could prevent air pressure from building up in an air-brake system in frosty weather? Moisture in the air may form bubbles in the brake fluid The air will contract, reducing the pressure The dampness may cause valves to rust Moisture drawn in with the air may freeze and cause a blockage 38. 40. What should you do when driving a large vehicle down a steep hill? Partly apply the parking brake Select the vehicle's highest gear Use the endurance brake Put the gear lever into neutral 39. 38. What's 'brake fade'? Reduction of air pressure Smooth progressive braking Reduction of braking effectiveness Low hydraulic brake fluid level 40. 35. Your vehicle is fitted with air brakes. What does it mean if a brake warning light shows when you've just started the engine? Low air pressure Increased air pressure The parking brake isn't working The air reservoirs are fully charged 41. 7. You're driving down a snow-covered hill. Why should you take care when using an independent endurance brake (retarder)? Your brakes could overheat Your speed could increase Compressed air could escape The drive wheels could lock 42. 30. You're driving a vehicle fitted with anti-lock brakes. What should you do when braking in an emergency? 'Pump' the brake pedal harshly Apply minimum force to the brake pedal Use the exhaust brake (retarder) before the footbrake Apply firm, continuous pressure to the brake pedal 43. 24. When can an endurance brake (retarder) be especially useful? While driving down long hills When driving on steep cambers As a way to reduce gear changes To improve fuel consumption 44. 11. What should you do after driving through a flood? Carry out an emergency stop Drive in a low gear with the footbrake lightly applied Avoid braking until the brakes have dried out Pump the footbrake when approaching hazards 45. 26. What's an advantage of progressive braking? Improved passenger safety and comfort Increased air-brake pressure Avoidance of 'brake fade' Longer rest periods 46. 9. How will anti-lock brakes improve your vehicle's safety? They allow you to follow other vehicles more closely They help you keep steering control while braking heavily They let you drive faster on wet roads They enable you to brake later than normal 47. 31. Your vehicle has anti-lock brakes. How does this affect you when you're braking normally? There's no need to alter the way you brake You'll be able to brake much later You'll need to brake more firmly There's no need to brake so early Time's up Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.
