Commercial Driving Hazardous Conditions

Question 1

What is hydroplaning and at what speed does it typically begin?

Accepted Answer

When tires ride on a layer of water rather than the road surface, typically starting around 30 mph on wet roads

Answer

Driving in a plane during rain

Answer

Driving too slowly in rain

Answer

Only happens at speeds above 70 mph

Question 2

What should a commercial driver do when encountering black ice?

Accepted Answer

Ease off the accelerator, avoid sudden braking or steering, and reduce speed gradually

Answer

Brake hard to stop

Answer

Accelerate to maintain momentum

Answer

Turn the steering wheel rapidly

Question 3

What is the recommended action when driving in heavy fog?

Accepted Answer

Use low beams or fog lights, reduce speed significantly, and increase following distance

Answer

Use high beams for better visibility

Answer

Maintain normal speed using four-way flashers

Answer

Follow the taillights of the vehicle ahead closely

Question 4

What is the proper response to a front tire blowout?

Accepted Answer

Grip the steering wheel firmly, stay off the brakes, and gently steer to maintain your lane while gradually slowing

Answer

Brake immediately

Answer

Accelerate to maintain control

Answer

Turn sharply away from the blown tire side

Question 5

When should a commercial driver pull over and stop driving due to weather?

Accepted Answer

When conditions reduce visibility below a safe distance or make maintaining vehicle control dangerous

Answer

Never, deliveries must be made on time

Answer

Only during hurricanes or tornadoes

Answer

Only when dispatched tells them to stop

Question 6

What is the danger of driving through standing water on the road?

Accepted Answer

The vehicle could hydroplane, the water depth may be deceiving, and brakes may become wet and less effective

Answer

It washes the vehicle

Answer

Standing water is never dangerous for commercial vehicles

Answer

It only damages the paint