Delaware: Highway driving and merging Practice Test
Entering and leaving highways, merging, and the space you need to cross or join traffic.
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Questions are original and based on the official manual "Delaware Driver Manual" (July 2026), Delaware Division of Motor Vehicles (DMV).
All 9 questions in this practice test
Take the test above first, then use this list to study. Tap “Show answer” to see the correct answer and explanation.
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What is a divided highway according to the manual?
- A highway whose lanes are separated only by a painted double yellow line
- A highway split into roadways by a space, barrier or section built to impede traffic
- A State or Interstate highway designed only for through traffic
- A road whose center is shared with railroad tracks along its whole length
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Correct answer: A highway split into roadways by a space, barrier or section built to impede traffic
A divided highway is divided into two or more roadways by an intervening space, physical barrier, or clearly indicated dividing section so constructed as to impede vehicular traffic.
Source: Delaware Driver Manual (July 2026), page 11 · Open this page in the manual (Manual page 11)
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What is an express highway according to the manual?
- A State or Interstate highway designed for through traffic
- Any highway with more than two lanes in each direction
- A highway divided only by a painted median strip
- A road in a city or a suburban district
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Correct answer: A State or Interstate highway designed for through traffic
The manual defines an express highway as a State or Interstate highway especially designed for through traffic.
Source: Delaware Driver Manual (July 2026), page 12 · Open this page in the manual (Manual page 12)
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What is the "Zipper Merge" (late merge)?
- A method of exiting a highway from the far left lane
- A way to pass slow vehicles on a two-lane road
- A technique for entering a roundabout
- A method of merging traffic into a reduced number of lanes
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Correct answer: A method of merging traffic into a reduced number of lanes
The manual defines the late merge or zipper method as a convention for merging traffic into a reduced number of lanes.
Source: Delaware Driver Manual (July 2026), page 77 · Open this page in the manual (Manual page 77)
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In a zipper merge, what are drivers in the merging lanes expected to do?
- Use both lanes to the lane reduction point and merge there, alternating turns
- Merge as soon as they see the sign, in the first lane that is open
- Use only the lane that continues, leaving the closing lane empty
- Merge at the point where the faster lane drivers choose to let them in
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Correct answer: Use both lanes to the lane reduction point and merge there, alternating turns
Drivers use both lanes to advance to the lane reduction point and merge there, alternating turns.
Source: Delaware Driver Manual (July 2026), page 77 · Open this page in the manual (Manual page 77)
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At what speed should you try to enter traffic when you merge?
- Slower than traffic, to be safe
- The same speed that traffic is moving
- Faster than traffic, to get ahead
- The posted minimum speed on the ramp
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Correct answer: The same speed that traffic is moving
The manual says to try to enter at the same speed that traffic is moving.
Source: Delaware Driver Manual (July 2026), page 124 · Open this page in the manual (Manual page 124)
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What should you use a ramp for on a high-speed roadway?
- To stop and wait for a gap in the traffic
- To slow down well before you merge in
- To pass other vehicles while on the ramp
- To reach the speed of other vehicles
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Correct answer: To reach the speed of other vehicles
The manual says to use the ramp to reach the speed of other vehicles before you pull onto the road.
Source: Delaware Driver Manual (July 2026), page 124 · Open this page in the manual (Manual page 124)
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Why should you not drive to the end of an entrance ramp and stop?
- There is not enough room to get up to traffic speed
- Ramps are one-way and stopping is a violation
- Stopping on a ramp wears out your brakes
- Ramps have no shoulder to pull onto
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Correct answer: There is not enough room to get up to traffic speed
Stopping at the end of the ramp leaves too little room to reach traffic speed, and drivers behind you do not expect you to stop.
Source: Delaware Driver Manual (July 2026), page 124 · Open this page in the manual (Manual page 124)
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If you must wait for space to enter a roadway from a ramp, what should you do?
- Stop at the start of the ramp and wait
- Speed up and force your way into traffic
- Slow down on the ramp to leave room to speed up
- Stop at the end of the ramp
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Correct answer: Slow down on the ramp to leave room to speed up
Slowing down on the ramp leaves some room to speed up before you merge.
Source: Delaware Driver Manual (July 2026), page 124 · Open this page in the manual (Manual page 124)
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When leaving a road that has exit ramps, when should you begin to slow down?
- Well before the exit ramp, on the main road
- When you move onto the exit ramp
- As soon as you see the exit sign
- As you pass the last mile marker
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Correct answer: When you move onto the exit ramp
The manual says to keep up with traffic on the main road and not slow down until you move onto the exit ramp.
Source: Delaware Driver Manual (July 2026), page 124 · Open this page in the manual (Manual page 124)