You're driving a lorry with a maximum authorised mass of 38 tonnes on a single carriageway road in England. What's the speed limit for your vehicle after passing this sign? You're driving a lorry with a maximum authorised mass of 38 tonnes on a single carriageway road in England. What's the speed limit for your vehicle after passing this sign?

• Possible answers:

   
• A. 40 mph
• B. 50 mph
• C. 60 mph
• D. 70 mph