K53 Learners Alcohol, Drugs and Fatigue

Question 1

What is the legal blood alcohol concentration (BAC) limit for an ordinary driver in South Africa?

Accepted Answer

0.05 grams per 100 millilitres

Answer

The legal BAC limit for ordinary drivers in South Africa is 0.05g per 100ml of blood.

Question 2

What is the legal blood alcohol limit for a professional driver (e.g. taxi or bus driver) in South Africa?

Accepted Answer

0.02 grams per 100 millilitres

Answer

Professional drivers face a stricter limit of 0.02g per 100ml blood because they carry passengers and bear greater responsibility.

Question 3

How does alcohol primarily affect a driver's ability?

Accepted Answer

It reduces reaction time and impairs judgement

Answer

Alcohol slows reaction time, impairs judgement, reduces coordination, and distorts perception, all of which are critical for safe driving.

Question 4

Which of the following is a sign that a driver may be too fatigued to drive safely?

Accepted Answer

Difficulty keeping eyes open and drifting out of lane

Answer

Difficulty keeping eyes open and lane drifting are classic signs of dangerous driver fatigue and a clear indication to stop driving.

Question 5

What should you do if you feel drowsy while driving on a long trip?

Accepted Answer

Stop at a safe place, rest or sleep before continuing

Answer

The only safe response to drowsiness is to stop, rest or sleep; other methods are temporary and do not restore alertness adequately.

K53 Learner's Licence Test