This video provides a theory test revision covering safety margins in various weather conditions. It focuses on driving in hot weather, fog, and windy conditions, explaining how these conditions impact driving and the necessary safety precautions.
Your answers are largely accurate, reflecting the information in the transcript. Here are some minor refinements for enhanced precision:
Roads soften, reducing tire grip: This is correct, but adding "Road surfaces soften in hot weather, reducing tire grip" adds clarity. The transcript emphasizes the surface softening, not the road itself.
Fog lights: Your answer is good, but the transcript states that fog lights should be turned off if visibility improves above 100 meters. The caveat about not dazzling other drivers is a good addition based on general driving knowledge, but it's not explicitly stated in the transcript.
Vulnerable vehicles: Correct as stated.
Crosswind sign: Your description is accurate. Using "windsock" instead of "wind shock" is the correct term.