You must stop behind the line at a junction with a 'Stop' sign and a solid white line across the road. Wait for a safe gap in the traffic before you move off. You must give way to traffic on the main road when emerging from a junction with broken white lines across the road.
The practical motorcycle test is made up of lots of different elements, an eyesight test, vehicle safety questions, a test of driving ability, a test of specific maneuvers and a question about riding with a passenger.