Washington DC DMV Permit Practice Test 2026：第7套练习测试

Washington DC DMV Permit Practice Test 练习测试第7套（共8套）：再练25道题，附答案和解释。

驾驶
哥伦比亚特区
205道题
核对于2026年10月10日

第1题，共25题
What does this sign mean?
- The center lane is only for left turns by traffic from both directions
- The center lane is a passing lane
- The left lane must turn left
- Two lanes may turn left
显示答案
答案: A. The center lane is only for left turns by traffic from both directions
Use the shared center lane only to slow down and turn left. Never use it to pass or to travel a long way.
第2题，共25题
Only one kind of sign has this shape. What is the shape called?
- Diamond
- Octagon (8 sides)
- Hexagon (6 sides)
- Pentagon (5 sides)
显示答案
答案: B. Octagon (8 sides)
The eight-sided octagon is used only for STOP signs, so you can recognize it even from behind or when it is covered with snow.
第3题，共25题
Car A wants to turn left on a green light. Car B is coming from the other direction, going straight. Which car should go first?
- Car B
- Car A, if its turn signal is on
- Car A
- Whichever car is faster
显示答案
答案: A. Car B
When turning left, you must yield to oncoming traffic that is close enough to be a danger.
第4题，共25题
Your car starts to skid on a slippery road. What should you do?
- Steer hard the opposite way
- Speed up
- Slam on the brakes
- Ease off the gas and steer in the direction you want the front of the car to go
显示答案
答案: D. Ease off the gas and steer in the direction you want the front of the car to go
Take your foot off the gas, do not brake hard, and steer smoothly where you want to go.
第5题，共25题
At a stop sign with a white stop line painted across your lane, where should you stop?
- Before the stop line
- Inside the crosswalk
- With your front wheels past the line
- Past the line, at the edge of the cross street
显示答案
答案: A. Before the stop line
A stop line shows where you must stop. If there is no stop line, stop before the crosswalk.
第6题，共25题
What does this sign mean?
- The left lane is closed ahead
- If you are in the left lane, you must turn left
- Left turns are not allowed
- You may turn left from any lane
显示答案
答案: B. If you are in the left lane, you must turn left
Get into the correct lane early. If you are in the left lane, you have to turn left at the intersection.
第7题，共25题
Which numbered marking means that drivers from both directions may not pass?
- Marking 5
- Marking 3
- Marking 2
- Marking 4
显示答案
答案: B. Marking 3
A double solid yellow line (marking 3) means no passing in either direction.
第8题，共25题
At this four-way stop, the numbers show the order in which the cars stopped. Which car may go first?
- Car 2
- Car 3
- Car 1
- Car 4
显示答案
答案: C. Car 1
At an all-way stop, the first vehicle to come to a full stop is the first to go.
第9题，共25题
What does this sign mean?
- Traffic joining from the side gets its own lane, so it does not need to merge
- Two-way traffic ahead
- The road narrows ahead
- You must merge left now
显示答案
答案: A. Traffic joining from the side gets its own lane, so it does not need to merge
The entering traffic gets a new lane. Still watch for drivers who change lanes.
第10题，共25题
What does this sign mean?
- The bridge ahead is narrower than the road
- The bridge ahead is closed
- A drawbridge is ahead
- The road ends at a river
显示答案
答案: A. The bridge ahead is narrower than the road
There is less room on the bridge. Slow down, keep right and watch for oncoming traffic.
第11题，共25题
What does this sign mean?
- One sharp curve to the right is ahead
- A series of curves is ahead
- The road is slippery ahead
- Lanes shift ahead
显示答案
答案: B. A series of curves is ahead
The road has three or more curves in a row. Slow down and stay in your lane.
第12题，共25题
Which of these is an illegal place to park?
- In a marked space next to the curb
- On a residential street with no signs
- In an open space in a parking lot
- In a crosswalk
显示答案
答案: D. In a crosswalk
You may never park in a marked or unmarked crosswalk, because it blocks people who are crossing.
第13题，共25题
Car A and Car B stop at this four-way stop at the same time. Which car should go first?
- Both cars may go at once
- Car B
- Whichever car starts moving first
- Car A
显示答案
答案: B. Car B
When two drivers stop at the same time, the driver on the left yields to the driver on the right. Car B is on Car A's right, so Car B goes first.
第14题，共25题
You feel sleepy while driving. What is the safest choice?
- Open the window and turn up the radio
- Chew gum and keep driving
- Drive faster to get home sooner
- Pull over in a safe place and rest or take a short nap
显示答案
答案: D. Pull over in a safe place and rest or take a short nap
Tricks like a cold window or loud music do not work. Stop and rest; only sleep cures drowsiness.
第15题，共25题
Where are a large truck's blind spots, or No-Zones?
- In front, behind and along both sides
- Trucks have no blind spots because the driver sits up high
- Only on the left side
- Only directly behind it
显示答案
答案: A. In front, behind and along both sides
Large trucks and buses have big blind spots on all four sides. Do not stay in them.
第16题，共25题
A car in the lane next to you has stopped at a crosswalk. What should you do?
- Honk and pass
- Change lanes and speed up
- Stop as well, because a pedestrian may be crossing
- Pass it carefully
显示答案
答案: C. Stop as well, because a pedestrian may be crossing
Never pass a vehicle that has stopped at a crosswalk. A pedestrian you cannot see may be crossing in front of it.
第17题，共25题
In almost every state, an adult driver age 21 or older is breaking the law if their blood alcohol concentration (BAC) is at or above what level?
- 0.12%
- 0.15%
- 0.20%
- 0.08%
显示答案
答案: D. 0.08%
It is illegal in every state except Utah to drive with a BAC of 0.08% or higher. Utah's limit is 0.05%, and stricter limits apply to younger and commercial drivers.
第18题，共25题
Zones 1 and 2 are this car's blind spots. Before you change lanes, how should you check them?
- Honk and move over slowly
- Turn your head and look over your shoulder
- Use only the inside rearview mirror
- Use only the side mirrors
显示答案
答案: B. Turn your head and look over your shoulder
Mirrors do not show every area beside you. Look over your shoulder to check the blind spot before you move.
第19题，共25题
A common cause of serious motorcycle crashes is a driver who:
- Turns left in front of an oncoming motorcycle
- Parks next to a motorcycle
- Follows a motorcycle at a safe distance
- Passes a motorcycle on a straight road
显示答案
答案: A. Turns left in front of an oncoming motorcycle
Drivers turning left often fail to see oncoming motorcycles. Look carefully for motorcycles before you turn.
第20题，共25题
What does this sign mean?
- The road is closed ahead
- A railroad crossing is ahead
- A radar speed check is ahead
- A rest area is ahead
显示答案
答案: B. A railroad crossing is ahead
This round yellow sign is placed before a railroad crossing. Slow down, look and listen, and be ready to stop.
第21题，共25题
You are driving out of a driveway or parking lot onto a street. Who must you yield to?
- Only pedestrians
- No one, if you use your turn signal
- Pedestrians on the sidewalk and all traffic on the street
- Only cars coming from your left
显示答案
答案: C. Pedestrians on the sidewalk and all traffic on the street
A driver entering a road from a driveway or private road must stop and yield to pedestrians and to traffic on the road.
第22题，共25题
If you double your speed, about how much longer does it take to stop once you brake?
- About the same distance
- About half as far
- About four times as far
- About twice as far
显示答案
答案: C. About four times as far
Braking distance grows with the square of speed, so doubling your speed makes it about four times longer.
第23题，共25题
Your car goes into deep water and starts to sink. What should you do?
- Stay buckled and wait for help
- Unbuckle and escape through a window
- Open a door right away
- Turn the engine off and on again
显示答案
答案: B. Unbuckle and escape through a window
Get out through a window. Opening a door can let water rush in and roll the car over.
第24题，共25题
What does it mean to overdrive your headlights?
- Driving with only parking lights on
- Driving so fast that you cannot stop within the distance your headlights show
- Using high beams near other cars
- Driving with one headlight out
显示答案
答案: B. Driving so fast that you cannot stop within the distance your headlights show
At night, drive at a speed that lets you stop within the area your headlights light up.
第25题，共25题
What do green signs like this one show?
- Rules you must obey
- Places to get gas and food
- Directions and distances to places
- Road work ahead
显示答案
答案: C. Directions and distances to places
Green guide signs show routes, directions and distances in miles.

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