CDT Traffic Laws & Regulations 3

Question 1

Under the Uniform Vehicle Code, what does a flashing yellow traffic signal indicate to a driver?

Accepted Answer

Proceed with caution

Answer

A flashing yellow signal warns drivers to slow down and proceed through the intersection with caution.

Question 2

A CDT candidate is reviewing a scenario where a driver fails to dim high beams when meeting oncoming traffic. Under most state laws, high beams must be dimmed within how many feet of an oncoming vehicle?

Accepted Answer

500 feet

Answer

Most state laws require drivers to switch from high beams to low beams within 500 feet of an oncoming vehicle to prevent blinding the other driver.

Question 3

Which of the following actions is REQUIRED when approaching a stationary emergency vehicle with flashing lights on a multi-lane highway under Move Over laws?

Accepted Answer

Move over one lane away from the vehicle if safely possible, or slow down significantly

Answer

All 50 states have Move Over laws requiring drivers to vacate the adjacent lane or reduce speed substantially when passing stationary emergency vehicles.

Question 4

When teaching lane changes on a freeway, a CDT instructor should emphasize that a driver must signal before changing lanes for at least how many seconds in most states?

Accepted Answer

3 seconds

Answer

Most state vehicle codes require a signal to be activated at least 3 seconds (or 100 feet on surface streets) before initiating a lane change.

Question 5

Under the FMCSA regulations, what is the maximum speed a CMV driver may operate a vehicle while transporting hazardous materials placarded Class 1 explosives on a two-lane road?

Accepted Answer

55 mph regardless of posted limit

Answer

FMCSA regulations (49 CFR 397.15) limit vehicles carrying explosives to a maximum of 55 mph on public roads regardless of the posted limit.

(CDT) Certified Driver Trainer Practice Test

(CDT) Certified Driver Trainer Practice Test

CDT Traffic Laws & Regulations 3