Missouri Driver License: Sharing the Road and Highway Driving

30 questions with the correct answer and an explanation for each. Topic: Sharing the Road and Highway Driving. Free, no account needed.

1. A driver wants to pass a motorcyclist on a two-lane road but the lane is narrow. What should the driver do?

Squeeze by slowly, since motorcycles are narrow
Sound the horn and pass at normal speed
Share the lane briefly, staying to one side
Wait for a clear stretch and give the motorcycle the full lane width

Answer: D — Wait for a clear stretch and give the motorcycle the full lane width

A motorcycle needs the full lane width, so a driver should never squeeze by and should wait for room to pass fully.

2. What does Missouri law require of a motorcycle rider on public streets?

A helmet and a valid license with motorcycle endorsement
A helmet, but any driver license suffices
A motorcycle endorsement but no helmet
Bright clothing only

Answer: A — A helmet and a valid license with motorcycle endorsement

Missouri law requires a helmet and a license with a motorcycle endorsement (or motorcycle license) to ride on public streets.

3. A motorcyclist is passing a row of parked cars. How much clearance should be left to guard against opening doors or a swerve?

Three to four feet
Five to six feet
One to two feet
As close as possible to stay in the lane

Answer: A — Three to four feet

Riders are advised to leave three to four feet when passing parked or moving vehicles.

4. About how much can a fully loaded tractor-trailer weigh?

Up to 120,000 pounds
Up to 40,000 pounds
Up to 80,000 pounds
Up to 60,000 pounds

Answer: C — Up to 80,000 pounds

A tractor-trailer may weigh up to 80,000 pounds.

5. A driver cannot see a truck driver's face in the truck's side mirrors. What does that mean?

The truck driver can still see the car clearly
It only matters at night
The car is in the truck's No-Zone and the truck driver cannot see it
The car should speed up to pass immediately

Answer: C — The car is in the truck's No-Zone and the truck driver cannot see it

If you cannot see the truck driver in the mirrors, the driver cannot see you — you're in the No-Zone blind spot.

6. A car and a fully loaded tractor-trailer are both traveling 55 mph and must stop. About how far does the car need compared to the truck?

Both need about the same distance, around 150 feet
The car needs 300 feet; the truck needs 500 feet
The car needs about 130 to 140 feet; the truck may need almost 400 feet
The car needs almost 400 feet; the truck needs only 200 feet

Answer: C — The car needs about 130 to 140 feet; the truck may need almost 400 feet

At 55 mph a car stops in about 130 to 140 feet, while a loaded tractor-trailer may need almost 400 feet.

7. A pedestrian using a guide dog is about to cross in front of a driver's vehicle. What must the driver do?

Slow down and proceed carefully if the way looks clear
Yield only if the pedestrian is in a marked crosswalk
Come to a complete stop
Sound the horn to alert the pedestrian, then proceed

Answer: C — Come to a complete stop

Drivers must come to a complete stop for a pedestrian guided by a dog or carrying a white cane.

8. A pedestrian is partway across an intersection when the "Don't Walk" signal starts flashing. What should the pedestrian do?

Stop where they are and wait
Finish crossing to the other side
Run to the nearest curb, whichever is closer
Turn around and go back immediately

Answer: B — Finish crossing to the other side

If the flashing "Don't Walk" starts while already crossing, a pedestrian should finish crossing.

9. Where do most collisions involving bicycles and mopeds occur?

In parking lots
On bridges
At intersections
On rural highways

Answer: C — At intersections

Most collisions with bicycles and mopeds happen at intersections, where they're easy to overlook.

10. A driver preparing to turn right onto a main road checks for oncoming traffic by looking left. What else should the driver do to avoid hitting a cyclist?

Nothing else is necessary
Also look right, including the sidewalk, for wrong-way riders
Sound the horn before turning
Only check the rearview mirror

Answer: B — Also look right, including the sidewalk, for wrong-way riders

Crashes with wrong-way riders often happen when a driver looks only left, so drivers should also look right, including the sidewalk.

11. By law, a bicycle or moped's brakes must be able to stop the bike within how many feet from a speed of 10 mph?

15 feet
50 feet
10 feet
25 feet

Answer: D — 25 feet

The law requires brakes that stop the bike within 25 feet from 10 mph.

12. A vehicle has an automatic transmission, a motor no larger than 50cc producing less than three gross brake horsepower, and a top speed of 30 mph on level ground. What is it classified as?

A low-speed vehicle
An electric bicycle
A motorized bicycle (moped)
A motorcycle

Answer: C — A motorized bicycle (moped)

This matches the definition of a motorized bicycle: automatic transmission, motor no more than 50cc under three horsepower, top speed 30 mph.

13. An electric bicycle assists the rider only while pedaling, and the assistance stops once the bike reaches 28 mph. Which class is it?

Class 4
Class 2
Class 3
Class 1

Answer: C — Class 3

Class 3 electric bicycles assist only while pedaling and stop assisting at 28 mph.

14. What license does a person need to ride an electric bicycle?

A motorcycle license or endorsement
No operator or motorcycle license is required
A standard driver license only
A moped-specific permit

Answer: B — No operator or motorcycle license is required

Riding an electric bicycle requires no operator or motorcycle license.

15. An organized funeral procession is passing through intersections with its flashing lights on. How does it interact with traffic signals?

It must yield to all cross traffic at every intersection
It has the right-of-way at every intersection regardless of the signal, except for emergency vehicles or police direction
It only has right-of-way at intersections with a police escort present
It must stop at red lights like any other traffic

Answer: B — It has the right-of-way at every intersection regardless of the signal, except for emergency vehicles or police direction

An organized procession has the right-of-way at every intersection regardless of the signal, except for emergency vehicles or when police direct otherwise.

16. A driver comes up behind a funeral procession on a road with no passing lane. What should the driver do?

Drive between two of the procession's vehicles if there's space
Not pass the procession, since no passing lane is provided
Pass carefully when there's a safe gap
Join the procession to move faster through intersections

Answer: B — Not pass the procession, since no passing lane is provided

Drivers must not pass a procession except where a passing lane is provided.

17. A driver witnesses road rage from a cell phone and wants to report it after pulling over safely. What number should be dialed outside a metropolitan area?

Answer: A — *55

From a cell phone, drivers should leave the road to a safe spot and dial *55 (or 911 in a metropolitan area).

18. What is the potential penalty for littering from a vehicle?

Automatic license suspension
A warning only for a first offense
A fine of up to $1,000 and/or up to one year in jail
A fine of up to $100 with no jail time

Answer: C — A fine of up to $1,000 and/or up to one year in jail

Littering can carry a fine of up to $1,000 and/or up to one year in jail.

19. On a two-lane highway, when may a driver cross the center line?

Only to pass, when no vehicle is coming and there is no solid yellow line
Only at intersections
Any time traffic allows
Only when driving below the speed limit

Answer: A — Only to pass, when no vehicle is coming and there is no solid yellow line

On a two-lane highway, drivers should stay right and cross the center line only to pass when it's clear and no solid yellow line prohibits it.

20. On a highway with four or more lanes, when is it acceptable to leave the right lane?

Any time the driver prefers a different lane
To pass slower traffic, make room for an entering driver, or prepare for a legal left turn
Only when directed by another driver's signal
Only when passing slower traffic

Answer: B — To pass slower traffic, make room for an entering driver, or prepare for a legal left turn

On four-or-more-lane roads, drivers should keep right except to pass, make room for an entering driver, or prepare for a legal left turn.

21. On a four-lane highway, which lane should be used to pass another vehicle?

The left lane, except the right lane may be used to pass a vehicle turning left
The shoulder, if it's paved
Either lane, whichever is open
The right lane, unless the vehicle ahead is turning left

Answer: A — The left lane, except the right lane may be used to pass a vehicle turning left

The left lane should be used to pass; the right lane may only be used to pass a vehicle that is turning left.

22. Before passing on a four-lane road, a driver checks mirrors. What extra step catches blind spots the mirrors miss?

Rolling down the window to listen for traffic
Checking the rearview mirror twice
Flashing the headlights
A quick glance over the left shoulder

Answer: D — A quick glance over the left shoulder

A quick look over the left shoulder catches the blind spots that mirrors miss before passing.

23. After passing a vehicle, how does a driver know it's safe to move back into the right lane?

After counting to five
When the passed vehicle honks
As soon as the driver is even with the front bumper of the passed vehicle
When the passed vehicle appears in the rearview mirror, after checking the right shoulder and signaling

Answer: D — When the passed vehicle appears in the rearview mirror, after checking the right shoulder and signaling

A driver should wait until the passed vehicle appears in the rearview mirror, check over the right shoulder, and signal before returning to the right lane.

24. A driver insists on going faster than the flow of traffic, passing vehicle after vehicle. What is the main risk this creates, compared with keeping pace?

It mainly increases fuel consumption, not crash risk
It saves significant time with little added risk
It has no real drawback if the driver is skilled
It causes repeated passing maneuvers, each carrying a chance of a crash, for only a few minutes saved per hour

Answer: D — It causes repeated passing maneuvers, each carrying a chance of a crash, for only a few minutes saved per hour

Driving faster than traffic means repeated passing, each with crash risk, while speeding saves only a few minutes an hour.

25. On a multi-lane road, many vehicles are passing a driver on the right. What does this indicate, and what should the driver do?

Nothing; this is normal and no action is needed
The driver is going too fast; speed up to match traffic
The driver should move further left to avoid the passing vehicles
The driver is too slow; move to the right lane unless turning left soon

Answer: D — The driver is too slow; move to the right lane unless turning left soon

Being passed on the right by many vehicles means you're too slow and should move to the right lane unless you'll turn left soon.

26. A driver must make an emergency stop on the shoulder and turns on the flashers. What else can be used to signal the emergency stop?

Parking facing oncoming traffic
Parking with the trunk open
Leaving the headlights off
Raising the hood or tying a white cloth to the antenna

Answer: D — Raising the hood or tying a white cloth to the antenna

In an emergency a driver may stop on the shoulder with the flashers on, the hood raised or a white cloth on the antenna.

27. A driver breaks down on the highway and manages to get the vehicle onto the shoulder. What should NOT be done?

Call for help
Turn on the flashers
Set flares behind the vehicle
Change a tire while standing in the traffic lane

Answer: D — Change a tire while standing in the traffic lane

Drivers should never stand in the roadway or change a tire in a traffic lane.

28. A driver is merging onto a highway from an acceleration lane and has matched highway speed, but the gap they wanted starts closing. Who has the right-of-way?

The highway traffic; the merging driver must yield even if it means stopping
The merging driver, since highway traffic must make room
Whoever signals first
Neither; both must stop

Answer: A — The highway traffic; the merging driver must yield even if it means stopping

Highway drivers should make room, but the entering driver must yield to them even if that means stopping.

29. A driver realizes they've just missed their highway exit. What should they do?

Stop and back up carefully to the exit
Pull onto the shoulder and wait for a gap to reverse
Make a U-turn if the median allows
Continue to the next exit and come back

Answer: D — Continue to the next exit and come back

If you miss an exit, never stop, back up, or turn around; go on to the next exit and come back.

30. A driver on a long, monotonous stretch of highway starts to feel a trance-like drowsiness from the steady hum of wind and tires. What should they do to fight it?

Speed up to reach the destination sooner
Fix their gaze on the center line to stay focused
Move their eyes and actively watch traffic and signs, pulling off if they feel sleepy
Turn up the radio and keep driving at the same pace

Answer: C — Move their eyes and actively watch traffic and signs, pulling off if they feel sleepy

Highway hypnosis is fought by moving your eyes and watching traffic and signs, and pulling off if you feel sleepy.