Ireland Driving Test 25
This is a timed quiz. You will be given 60 seconds per question. Are you ready?
How can a faulty exhaust affect your vehicle?
Explantion: A worn exhaust system can have a number of effects. including increased noise from the engine and more fumes (as they are not filtered properly).
Why should the valve be replaced when having a tubeless tyre fitted?
Explantion: When fitting a new tubeless tyre to a vehicle it is a good idea to change the valve also, because it has presumably been on the wheel since the old tyre was fitted: and it could break down, leak and cause the air to escape.
In general, how often should a driver check the tyre pressure of a vehicle?
Explantion: As a driver, it is your legal responsibility to make sure that your vehicle is roadworthy. To do this, you should carry out weekly and periodical checks, including a weekly tyre pressure check.
What effect would under-inflated tyres have on a vehicle’s transmission?
Explantion: Incorrect tyre pressure adversely affects many of a vehicles systems, including braking, suspension, steering and fuel consumption. It does not, however, affect the engine transmission.
When should tyre pressure be checked?
Explantion: You should check the tyre pressure in your vehicle once a week. Do this when the tyres are cold, using a reliable gauge. Tyres should always be inflated according to the vehicles manufacture's guidelines.
After changing a wheel on a vehicle, which of the following should be checked soon afterwards?
Explantion: A short period after you have changed a wheel on a vehicle, you should check- The type pressure, to make sure it is correct; and The wheel nuts, to ensure they are still properly secured.
What is the purpose of a catalytic converter?
Explantion: The purpose of a catalytic converter (CAT) is to remove toxic or polluting gases such as carbon monoxide, nitrogen oxide and unburned hydrocarbons from the exhaust emissions.
What does blue smoke coming from the vehicle’s exhaust mean?
Explantion: As an engine gets old or if it is not properly maintained, it can ;burn oil' and give off ;blue smoke' from the exhaust This is harmful to the atmosphere and should be corrected.
After changing a wheel on a vehicle, which of the following should be checked soon afterwards?
Explantion: A short period after you have changed a wheel on a vehicle, you should check- The type pressure, to make sure it is correct; and The wheel nuts, to ensure they are still properly secured.
What can be affected by driving on under-inflated tyres?
Explantion: Incorrect tyre pressure adversely affects many of a vehicle's systems including suspension, steering and fuel consumption. In particular, under-inflated tyres can affect the vehicle's braking ability.
The vehicle’s exterior mirrors are covered by a film of mud and dust. What should the driver do?
Explantion: Keep your mirrors clean and properly adjusted, so that your view of the road to the rear and sides is clear and unhindered.
What does the speed rating of a tyre indicate?
Explantion: The speed rating of a tyre is the maximum speed for which the tyre is designed. This relates to the speed capability of the tyre. It does not relate to the speed at which the tyre should or could legally be driven.
Why should tyres be kept at the pressure specified by the manufacturer?
Explantion: The vehicle manufacturer specifies the pressure to which tyres on a vehicle should be inflated. This is the pressure that gives the best performance in road holding, efficient braking and fuel consumption. Most manufacturers specify different pressures for front or rear tyres.
A fault in what component would lead to uneven or excessive tyre wear?
Explantion: If a vehicle has a worn suspension it may lead to uneven or excessive tyre wear. If you notice that your tyres are unevenly worn, you should investigate the reason and have it repaired.
During a weekly check, a driver notices a badly worn front tyre. What should they do?
Explantion: The quality of the tyres on a vehicle is an important factor in the vehicle's road holding and braking ability. So if you notice that a tyre is badly worn, you should replace it as soon as possible. The minimum legal tread depth for tyres on most vehicles is 1.6mm, but you should replace a tyre before it becomes this worn.
What effect does low tyre-pressure have on a vehicle?
Explantion: Incorrect tyre pressure adversely affects many of a vehicles systems, including suspension, steering and fuel consumption. In particular, under-inflated tyres can affect the vehicles braking ability and its effectiveness when cornering.
What should the driver be able to see in the vehicle mirrors when they have been properly adjusted?
Explantion: Your mirrors enable you to see the road behind and to the sides. This helps you to take into account what's happening behind you, so that you can make informed, correct and safe decisions.
What should a driver do before undertaking a long journey?
Explantion: It is important to check the tyre pressure before starting a long journey as incorrect air pressure can adversely affect many of the vehicles systems, including brakes, steering, suspension and fuel consumption.
What does worn tread along the edge of a tyre suggest?
Explantion: If you notice that a tyre on your vehicle is worn along its edge, this may indicate a problem with the steering alignment This is a potentially dangerous problem, and you should have it fixed as soon as possible.
What effect can wet weather have on a vehicle’s exterior mirrors?
Explantion: In rain and damp conditions, small water droplets can form on the glass of the exterior mirror s. This could make it more difficult to see the road behind and to the sides. Switch on the mirror demisters, if you have them.
What is the effect of a worn exhaust?
Explantion: A worn exhaust system can have a number of effects. including increased noise from the engine and more fumes (as they are not filtered properly).
What can be affected by driving on under-inflated tyres?
Explantion: Incorrect tyre pressure adversely affects many of the vehicles systems, including brakes, suspension and steering. In particular, under-inflated tyres can increase the vehicle's fuel consumption.
When a driver is making a left-hand turn, what mirrors should they particularly concentrate on?
Explantion: When you are turning left, you should be aware that cyclists and other vehicles may come up on your inside. For that reason it is particularly important to check your left exterior mirror and your internal mirror before turning. Always use the Mirror-signal-mirror (blind spots)-manoeuvre routine when you are turning and be extra careful if you have to cross a bus lane to make the turn.
What should the driver be able to see in the exterior mirrors of a vehicle when they have been properly adjusted?
Explantion: Exterior mirrors enable you to see to the side of the vehicle, and to take into account all visible hazards and make correct and safe decisions.
What effect could hitting or mounting the kerb have on a vehicle’s tyres?
Explantion: If a vehicle hits or mounts the kerb it could damage the sidewall of the tyre. If that happens it could cause the tyre to 'blow-out' later. If this happens at high speed the vehicle could go out of control and crash.