Weather and Hazardous Conditions Flashcards

Washington law requires headlights on when visibility is less than how far, or between which times?

Answer: 1,000 feet, and from a half hour after sunset to a half hour before sunrise

Headlights are required when you cannot see persons or vehicles 1,000 feet ahead and during the half-hour windows around sunset and sunrise.

When 'chains required' signs are posted on a Washington mountain pass, what must drivers of passenger cars do?

Answer: Install chains or approved traction devices before proceeding

Chain requirement signs are enforceable, and vehicles must have chains or approved traction devices installed to continue.

On snow or ice, how should you slow down for a stop sign ahead?

Answer: Begin braking early with gentle, steady pressure

Braking early and gently prevents wheel lockup and gives you the extra distance ice demands.

If you have anti-lock brakes (ABS) and must stop quickly on a slippery road, you should:

Answer: Press the brake pedal firmly and hold it down

ABS automatically prevents wheel lockup, so firm continuous pressure lets the system work.

Why is driving at the posted speed limit sometimes illegal in bad weather?

Answer: The basic speed rule requires driving no faster than is safe for conditions

Washington's basic speed rule makes it illegal to drive faster than conditions safely allow, even below the posted limit.

During winter driving, why should you keep your gas tank at least half full?

Answer: It prevents fuel-line freeze and provides fuel if you become stranded

A fuller tank reduces condensation that can freeze in fuel lines and lets you run the engine for heat if stranded.

What should you do before driving if snow and ice cover your windows?

Answer: Clear all windows, mirrors, and lights completely before moving

You must have full visibility from every window and working lights before driving, not just a peephole.