B licence questions
BFactors that impair driving ability·230 questions
Factors that impair driving ability questions — B licence
230 exam-style Factors that impair driving ability questions for the B licence with correct answer and explanation. Practice free, no signup.
- As a usual guide, when does blood alcohol concentration tend to reach its maximum after drinking?
- How does cannabis affect driving?
- A tired driver...
- Can a respiratory allergy reduce the ability to maintain concentration in traffic?
- What effect may a cold, or some medicines used to relieve it, have on driving?
- What is the time that elapses from the recognition of a hazard to the start of the reaction called?
- On a long passenger-car trip, to prevent fatigue it is advisable to rest approximately:
- Among its effects on driving, alcohol can cause...
- Can fatigue alter the driver's reaction time?
- If you mix drugs with alcohol...
- At an alcohol check, which of these rights does Article 23 recognise regarding the two breath tests?
- In the terminology used by the DGT, which system warns of driver distraction?
- In relation to driving and as a general rule, the improper consumption of medication increases...
- If you are overtaken by drowsiness while driving, you must...
- On working days, which journeys can concentrate traffic during peak hours on approaches to urban areas?
- Accidents caused by drowsiness occur...
- Under the effects of heat, it is possible that...
- Can depression affect drowsiness and fatigue when driving?
- For the same reaction time, how does increasing speed affect the distance travelled before starting to brake for a hazard?
- Can alcohol reduce the driver's field of vision?
- Alcohol is absorbed more quickly if ...
- According to general DGT guidance, when is the highest blood-alcohol concentration usually reached after finishing drinking?
- Can you drive if you have taken any medication?
- People who drink and drive…
- Among other effects, the consumption of alcohol…
- Why is driving while sleepy dangerous?
- Does chewing gum or eating sweets reduce the blood alcohol level?
- Non-medical amphetamine use, during its stimulant effect, can...
- Among its possible effects, what visual impairment can alcohol cause?
- Is it advisable to drive at night to avoid tiredness?
- What may happen to reaction time under a tranquiliser’s sedative effect?
- Are all medicines dangerous when driving?
- A driver under the effects of alcohol...
- If a medicine can affect attention or reaction time while driving a passenger car or other vehicle covered by a B licence:
- Why can limited experience increase a young driver’s risk?
- If you feel fatigue or drowsiness while driving, what should you do?
- Intense stress can cause a driver to...
- To drive safely, the driver must...
- How can depression affect driving?
- According to the INTCF’s 2024 traffic report, what proportion of the deceased drivers tested were positive for alcohol, drugs and/or psychoactive medicines?
- If you maintain the same speed, what effect can fatigue at the wheel produce?
- Can excessive heat inside the vehicle increase the risk when driving?
- In a medical alcohol confirmation test, may urine analysis be used in justified exceptional cases where appropriate?
- Can stress, anxiety or depression distract the driver?
- After drinking alcohol, does eating food or drinking water rapidly remove alcohol already in the blood so that you can drive?
- One of the factors that contributes to accidents among young drivers is...
- Can a novice driver feel tired more easily?
- If you suffer from a seasonal respiratory allergy, to drive more safely during the time of year when your symptoms are strongest, it is advisable to...
- Does fatigue influence the effects produced by alcohol?
- Can the risk of having an accident be reduced if you have a chronic illness?
- Can using a mobile phone with a "hands-free" system while driving affect the driver's ability to concentrate?
- Can stress, anxiety or depression cause the driver to lose concentration at the wheel?
- Can recreational amphetamine use make driving dangerous?
- Can stress alter your ability to drive safely?
- Can searching for a radio station or handling the music player distract the driver?
- The likelihood of having a traffic accident...
- A person who drives under the influence of drugs...
- Can recreational drug use increase the risk of a serious collision even when not combined with alcohol?
- Can you feel a greater sense of fatigue if you suffer from stress?
- When we take alcohol together with other drugs...
- Excessive heat inside the vehicle...
- Medications that don't need a medical prescription...
- Does driving while experiencing the symptoms of a respiratory allergy increase the risk of having an accident?
- Are inadequate speed, alcohol and illness considered risk factors?
- Can a common cold affect your ability to drive?
- Does alcohol affect everyone in the same way?
- Can a very high temperature inside the vehicle's cabin affect the driver's reaction time?
- Which age groups does the DGT highlight as more sensitive to the effects of alcohol?
- What behavioural changes can alcohol cause in a driver?
- Does drinking coffee or tea reduce your blood alcohol level?
- Which of these actions can distract the driver while the vehicle is moving?
- Does sleeping for a few hours after drinking guarantee that alcohol has been eliminated and you can drive safely?
- Is driving while tired dangerous?
- If fatigue appears while driving a passenger car or other vehicle covered by a B licence, the safest action is to:
- Accidents caused by drowsiness occur...
- Can abused or illegal drugs impair a driver’s reaction ability?
- It is important to avoid heavy meals during journeys because they can cause...
- Which of these situations can contribute to drowsiness while driving?
- Can the risk of having an accident be reduced if you suffer from a chronic illness?
- An adult driver subject to a positive alcohol limit has consumed alcohol but is below their applicable legal limit. Can they still have a crash?
- Does taking a nap eliminate alcohol more quickly?
- Which of these road characteristics can contribute to driver fatigue or drowsiness?
- Do all people respond in the same way when taking the same medication?
- Can tiredness alter a driver's reaction time?
- When alcohol is consumed, the driver...
- Which products can impair driving ability in a similar way to alcohol?
- As general DGT guidance, within what interval after consumption may peak blood alcohol concentration be reached?
- At the same travel speed, if alcohol lengthens reaction time, what happens to reaction distance?
- Can psychoactive drugs impair the ability to drive safely?
- What should a driver who feels sleepy do?
- If a driver is undergoing treatment and taking certain medicines, such as painkillers or antihistamines, it is advisable that...
- The circumstances that increase the likelihood of an accident occurring are called...
- Can taking stimulant drinks prevent sleepiness?
- Does the percentage of tested deceased drivers positive for alcohol, drugs or psychoactive medicines by itself equal the percentage of all fatal crashes caused by drugs?
- Can a medicine available without prescription adversely affect driving ability?
- If a medicine causes sleepiness or reduces attention so that you cannot drive safely, may you drive even without having consumed alcohol?
- Can drugs of abuse distort risk perception and encourage dangerous driving decisions?
- If you have taken narcotics or psychotropic substances that alter your mental state, are you allowed to drive a vehicle?
- Which factors can cause fatigue in a driver?
- May the Authority require a cyclist to take a breathalyser test?
- What is the appropriate remedy for combating fatigue?
- If you are undergoing treatment with medication, what precautions should you take?
- Can medicines taken to treat a cold impair your ability to drive safely?
- Can some medicines negatively affect a driver's behaviour?
- When a hazard requires braking, what is the driver’s reaction time?
- What is one of the main effects of sleepiness on a driver?
- Is drug abuse linked to the most serious accidents?
- If you talk on the phone while driving...
- During their stimulant phase, amphetamine use outside medical treatment can:
- What effect can depression have on driving ability?
- Does alcohol produce the same effects in everyone?
- How does driving under the effects of drugs of abuse that impair ability affect crash risk?
- Does taking medication produce the same effects and reaction in everyone who takes it?
- If an illness or its medication causes symptoms affecting driving ability, how should you act?
- If you have depression and receive treatment, what should you know about driving?
- A person has an illness and takes medication. What should they do before driving?
- Does drinking a lot of water or smoking reduce your blood alcohol level?
- Which of the following side effects is caused by driver drowsiness?
- Maintaining excessive speed for a long time can contribute to...
- Why is it dangerous to drive when we are tired?
- To drive more safely...
- Can the use of medication be responsible for a traffic accident?
- What effect can a sedating tranquilliser have on reaction time?
- In general, after consuming the same amount of alcohol and comparing people of similar weight, who tends to reach a higher blood alcohol concentration?
- What effects can excessive heat cause in a driver?
- If you feel fatigued while driving a passenger car, the correct action is to:
- To avoid an accident, a driver who is fatigued at the wheel must stop to rest properly as soon as possible because...
- To prevent fatigue, it is advisable to...
- A driver who is under the effects of drowsiness…
- Sleepiness affects driving because…
- What should you do if you are driving and feel very tired or fatigued?
- Is it appropriate to take cocaine in an attempt to improve reactions and drive more safely?
- Regarding ageing and driving, which statement is correct?
- Can a driver's reaction time increase?
- Can you have an accident because of sleepiness without having fallen completely asleep?
- What effects can driving many hours without resting promote?
- Can taking drugs of abuse seriously impair the abilities needed to drive?
- What effect can depression have on the attention needed for driving?
- Does the use of drugs of abuse or illegal drugs affect road safety?
- What is the function of the warning from a fatigue or drowsiness detection ADAS?
- Under the effects of drowsiness, the driver's movements…
- In general, frequently changing your sleep hours or waking up several times while sleeping are circumstances that...
- Driving while tired is dangerous because...
- What effect can fatigue have on attention while driving?
- Is it possible to have an accident due to the effects of alcohol if you drive with a blood alcohol level below the permitted limit?
- Does alcohol consumption affect a driver's susceptibility to glare?
- What effect can depression have on driving?
- If we are going to make a long journey, to reduce the likelihood of drowsiness occurring while driving, it is advisable to...
- The effects of medicines may vary depending on...
- Is driving vehicles under the influence of alcohol or drugs of abuse or illegal drugs dangerous?
- What effect can drowsiness have on driving?
- Does alcohol consumption generally reduce the driver's ability to pay attention, thereby encouraging distractions?
- How is alcohol eliminated from the body after drinking?
- Fatigue while driving usually causes above all:
- What effect can prolonged stress have on driving?
- Can herbal medicines or preparations adversely affect driving?
- Which cannabis effect can impair driving?
- In crashes with similar characteristics, which group can be more vulnerable to serious injury because of age-related fragility?
- What does stopping distance depend on?
- If you have taken a medicine on your own and do not know its driving effects, what should you do before driving?
- According to general DGT guidance, in which interval is the highest blood alcohol concentration usually reached after drinking?
- Do cold medicines affect driving a vehicle?
- Which of these is a manifestation of psychological fatigue?
- Does alcohol affect reaction time?
- If an administrative penalty for driving with drugs present becomes final, outside the legal therapeutic exception, how many points does Annex II of the Traffic Law deduct?
- Which LSD effect can seriously impair driving?
- Reaction distance is defined as:
- During a breathalyser test, a driver gives a result above the maximum permitted level. Must a second test be carried out?
- Can alcohol or recreational drug use impair driving even if the person believes they tolerate it well?
- What indicative value does the DGT consider normal for reaction time, without being a guarantee for every driver and situation?
- When starting medical treatment, what should you do before driving?
- Do medicines produce the same side effects in everyone who takes them?
- What factors encourage distractions while driving?
- As a general rule, before driving while taking medication, what should you do?
- Which driver-related circumstances encourage fatigue to develop?
- An inadequate psychophysical state can increase reaction time, as when we drive...
- According to WHO, globally, road traffic injuries are the leading cause of death in the age group of...
- Which driving environment can encourage drowsiness through monotony?
- Does the time taken for alcohol to be absorbed depend on the drink consumed?
- Can a driver feel drowsy even if they sleep for the necessary number of hours?
- Can drowsiness increase crash risk both during the day and at night?
- How can distraction affect response time to a hazard?
- Using a mobile phone while driving makes the risk of an accident...
- If you are driving and are undergoing medical treatment with medicines, you should know...
- In a passenger car, a telephone conversation using a hands-free system without hand operation or earphones...
- What effect can fatigue have on steering control?
- Under the effects of sleepiness...
- Cannabis use can affect driving because...
- Sleeping or hypnotic medicines can affect driving because...
- At the same speed, can alcohol increase a driver’s reaction distance?
- Can sleep disturbances affect the driver's condition?
- A respiratory pollen allergy can cause...
- What effects can stress have on a driver?
- Is it safe to drive under the influence of amphetamines taken recreationally?
- Are the effects of alcohol on the body related to weight?
- Can stress, anxiety or depression affect attention while driving?
- What effect does fatigue have?
- Can a cold and some medicines used to relieve its symptoms affect driving?
- What happens when alcohol is mixed with medicines?
- Which situation may increase fatigue by requiring greater visual effort and attention?
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How to ace the factors that impair driving ability questions on the B licence
Factors that impair driving ability questions are usually among the highest-failure areas in the B licence exam. Each of the 230 exam-style questions here includes the options, the correct answer and an explanation of why it's correct.
The most effective way to master this topic is to alternate syllabus reading with question practice. Start by reading the full topic, then click into any question to study it in detail. Failed questions enter the smart-review queue until you master them.
Frequently asked questions about factors that impair driving ability on the B licence
- How many factors that impair driving ability questions are in the B licence question bank?
- Our exam-style question bank includes 230 factors that impair driving ability questions for the B licence. Each comes with the correct answer and explanation.
- How should I study factors that impair driving ability for the B licence exam?
- The B test has 30 questions. Use this bank to practise factors that impair driving ability with explanations, and combine topic review with full mock exams.
- What are the most common factors that impair driving ability mistakes?
- Three typical causes: 1) misreading prompts with decisive keywords ("always", "never", "except", "only", "at least") — they flip the correct answer; 2) switching correct answers in the final review due to self-induced doubt; 3) studying only by topic without full simulations, which penalises block-switching speed.
- How should I practise factors that impair driving ability to prepare for the B licence?
- Alternate three modes: first study the full topic syllabus; then practise the 230 exam-style factors that impair driving ability questions until you understand the logic of each; finally launch full B-licence simulations (30 questions, max 3 wrong) to train block-switching under pressure.