Driver's Ed Unit 4 Test

Headlights and Weather Conditions

• Headlights must be activated when windshield wipers are used, regardless of visibility.
• Daytime running lights alone are insufficient; taillights must also be on.
• Fines for non-compliance can reach $100 with fees.

Wet Roadways

• Initial 10-15 minutes of rain make roads extremely slippery due to oil rising from asphalt.
• Conditions worsen in high heat as more oil surfaces.
• Beware of shaded road areas in cold weather; they freeze quickly and dry slowly.

Hydroplaning

• Occurs when tires lose grip and glide on water.
• Can happen at speeds as low as 35 mph with just 1/10 inch of water.
• Worn tires increase the risk; driving slower reduces the chance of hydroplaning.

Fishtailing

• Describes a situation where the rear of the vehicle sways back and forth unpredictably.

Night Driving Risks

• Highest rates of car crashes occur during nighttime.
• Serious accidents often happen in twilight or darkness.
• Traffic fatality rates are three to four times greater at night compared to daytime.

Overdriving Headlights

• Leads to dangerous situations if driving too fast to stop within the beam's range.
• Pennsylvania law requires low beams at 500 feet from oncoming vehicles and 300 feet when following another vehicle.

Night Driving Requirements for Learner's Permit

• New drivers can't drive from 11 p.m. to 5 a.m., except for employment or volunteer work with documentation.
• Must complete at least 65 hours of driving practice, including a minimum of 10 hours at night.

High Beams Usage

• Switch from high beams to low beams when another vehicle approaches to avoid blinding the other driver and impairing visibility.

Dashboard Warning Signs

• Steering failure is indicated by a yellow steering wheel symbol.
• Brake failure is alerted by ABS light.
• Check engine issues are highlighted by the engine warning light.

Types of Vehicle Failures

• Tire failures can occur suddenly; sounds may precede a blowout.
• Brake failures mean difficulties in stopping; a warning light may indicate partial braking still available.
• Total steering failure is rare but serious; use your horn and hazard lights, and stop safely if it occurs.

Tire Blowouts

• Front tire blowouts lead to steering wheel vibrations and vehicle pulling to one side.
• Rear tire blowouts may cause one corner to drop and result in a back-and-forth wobble.

Sticking Accelerator

• In an event of a stuck accelerator, maintain control and safety by not panicking but following emergency procedures.