DGT Alcohol, Drugs & Impaired Driving 3

Question 1

What is an ignition interlock device (IID) and when is it commonly required?

Accepted Answer

A breath-test device wired to the ignition that prevents the car from starting if alcohol is detected

Answer

A GPS tracker installed after a speeding ticket

Answer

An alarm system installed after vehicle theft

Answer

A data recorder used by insurance companies

Question 2

Combining alcohol with prescription opioids before driving is especially dangerous because:

Accepted Answer

Both depress the central nervous system, multiplying impairment beyond either substance alone

Answer

Both substances are stimulants that overstimulate the driver

Answer

Opioids counteract alcohol's effect on vision

Answer

The combination only affects a driver's color perception

Question 3

Which organization sets the federal standard BAC limit of 0.04% for commercial motor vehicle drivers?

Accepted Answer

The Federal Motor Carrier Safety Administration (FMCSA)

Answer

The National Transportation Safety Board (NTSB)

Answer

The Department of Homeland Security (DHS)

Answer

The Environmental Protection Agency (EPA)

Question 4

A driver feels 'fine to drive' after several drinks. Why is this perception dangerous?

Accepted Answer

Alcohol impairs the ability to judge one's own level of impairment

Answer

Alcohol increases actual driving skill at moderate levels

Answer

This feeling is medically validated by lower BAC readings

Answer

Feeling fine means the body has already metabolized all alcohol

Question 5

Which of the following is NOT a physiological factor that influences how quickly BAC rises after drinking?

Accepted Answer

The color of the alcoholic beverage

Answer

Body weight

Answer

Gender

Answer

Whether food was consumed beforehand

Question 6

Under DUI law, 'per se' intoxication means:

Accepted Answer

A BAC at or above the legal limit is sufficient proof of impairment by itself, without additional evidence

Answer

Officers must observe erratic driving before making a DUI arrest

Answer

A driver must fail all field sobriety tests to be charged

Answer

Only a blood test — not a breathalyzer — constitutes legal proof

Question 7

Statistics show that impaired driving crashes peak during which time period?

Accepted Answer

Late night and early morning hours, especially on weekends

Answer

Monday through Wednesday morning rush hours

Answer

Early afternoon on weekdays

Answer

School zone hours on weekday mornings