About Overtaking: the F1 sign and the five exceptions to left-overtaking: which statement is correct?
Overtaking on the right is allowed only when the driver on your left signals or positions to turn left; there are no other cases.
The 'no overtaking' sign (F1) is a round sign with a BLUE background.
Overtaking on the right is only allowed with stationary or slow-moving traffic, such as in a traffic jam.
F1 prohibits motor vehicles from overtaking EACH OTHER; agricultural vehicles may still be overtaken at this sign.
Explanation
trap: 'all vehicles' assumed where the sign only bans motor-vehicle-on-motor-vehicle overtaking. Book p.145 - F1 prohibits motor vehicles from overtaking EACH OTHER; agricultural vehicles may still be overtaken at this sign