What is the speed limit for the B2 restricted width gate?

[Fred]

For the driving license test, the minimum speed limit for the restricted width gate is 20 kilometers per hour. Relevant information about the B2 driving license is as follows: 1. Driving scope: In addition to medium and heavy-duty trucks, it also allows driving other permitted vehicle types such as C1, C2, C3, C4, C5, and M. This means small cars, small automatic transmission cars, low-speed trucks, three-wheeled cars, and wheeled self-propelled machinery can be driven. 2. Test subjects: The B2 driving license test is divided into Subject 1, Subject 2, Subject 3, and Subject 4. 3. Test content: Among them, Subject 1 and Subject 4 are computer-based tests covering traffic regulations and civilized driving. Subject 2 is a practical test, which includes 16 items: reverse parking and moving the vehicle, parallel parking, hill start, single-plank bridge, curve driving, right-angle turn, driving over bumps, passing through the restricted width gate, driving on undulating roads, narrow road U-turn, simulating continuous sharp turns on mountain roads, simulating rainy and foggy weather, simulating slippery roads, simulating tunnel driving, simulating highway driving, and simulating emergency handling.