When are headlights not permitted to be switched on?

Answer: A — When the road is straight and well-lit

Headlights are not permitted to be switched on when the road is straight and well-lit because in these conditions, the ambient light is sufficient for visibility, and using headlights can create glare for other drivers, particularly when there’s no need for extra illumination. In well-lit areas, using high beams can blind oncoming traffic, leading to dangerous situations. In situations such as rainy conditions or when approaching trains, using headlights is crucial for visibility and safety, as it alerts other road users and ensures that drivers can see the road clearly. Similarly, in rural areas where lighting might be insufficient, headlights are necessary for safe navigation. Ensuring that headlights are used appropriately according to the environment is vital for maintaining safety on the roads.