CERAD Theory Test. - VDI’s and Predriving Checks PREP QUESTIONS AND ANSWERS VERIFIED 100% CORRECT

CERAD Theory Test. - VDI’s and Predriving Checks PREP QUESTIONS AND ANSWERS VERIFIED 100% CORRECT Why do we need to check under the bonnet? - Lack of engine oil or coolant could result in extreme engine wear and possibly an engine seizure - A low level within the brake or power steering reservoir could indicate a leak in the systems - Only use the correct oil/fluid Why is ensuring engine oil/coolant levels particularly important on an ambulance? Vehicles have to work in arduous (strenuous) conditions and are sometimes in use for long periods What are you looking for when looking at lights and reflectors during a VDI? - Headlights (dipped, main beam, flash, flashing (if fitted) - Sidelights front and rear - Daytime running lights - Fog lights (front and rear) - Indicators - Hazard lights - Brake lights - Rear number plate lights - Reversing lights - Reflectors - Emergency warning lights (front, rear, side) - Scene lighting - Interior lights in the cab/saloon (Other than those in italics, all lights fitted must be working and clean) Why do we need to look at lights and reflectors? - Important to be able to see, and be seen - Vehicles with defective lighting could adversely affect the professional image of the ambulance service - Most vehicles automatically warn the driver if a bulb becomes defective, by using a warning light on the instrument panel How might a defective indicator bulb be displayed on the instrument panel? An increase in the frequency of flashes of the indicator warning light on the instrument panel What are you looking for when looking at glass, wipers and washers during a VDI? - Ensure windscreen, side and rear windows are clean inside and out. - Ensure no cracks or chips - Check the reflective surfaces of the mirrors are clean - Check windscreen wipers work (front and rear) - Check windscreen washer operation works (front and rear) - Ensure demisters and heated windows work Why do we need to check glass, wipers and washers? - Imperative that you can see clearly out of the vehicle - Cracks and chips can make the vehicle unfit for use and may need replacement or repair - Important that all-round vision is clear - Smears will limit your vision When is clear all-round vision paramount? During the hours of darkness, twilight, bright sunlight and in wet conditions What are you looking for when looking at audible warning equipment and exhaust during a VDI? - Check the horn, sirens and bull horn work - Ensure reversing alarm or warning device works - Ensure devices warning the driver of open doors, side step deployment or rear ramp insecurity work - Check exhaust system to ensure that noise emitted is not abnormally excessive and that gases are not escaping from any section of the system other than at the tail pipe? How can you check the horn, sirens and bull horn work quietly? Use the low power button (if fitted) to to reduce volume while testing Why should checking the exhaust not be conducted in an enclosed space? Due to the toxic nature of engine exhaust gases It is important that the driver checks that all audible equipment works prior to using the equipment during an emergency response - true or false? True Where should the person checking the lights stand? Safely to one side, not directly in front or behind, in case the vehicle unintentionally moves Why should the person checking the under bonnet fluids have the keys? To ensure the engine cannot be started while they are near to components that could start to move Many of the hydraulic fluids and oils are carcinogenic and corrosive - true or false? True What is the purpose of AdBlue? To reduce harmful gases into the environment How does AdBlue work? When combined with exhaust emissions, it produces nitrogen and oxygen - harmless gases that occur naturally in the environment