CDL Passenger Endorsement Practice Test 2026：第2套练习测试

CDL Passenger Endorsement Practice Test 练习测试第2套（共2套）：再练35道题，附答案和解释。

商用车辆
美国
60道题
核对于2026年10月10日

第1题，共35题
How many diamond-shaped hazard labels are used for hazardous materials?
- Nine
- Five
- Three
- Twelve
显示答案
答案: A. Nine
There are nine diamond-shaped hazard labels, one for each hazard class. Learn to spot them on riders' packages.
第2题，共35题
A rider wants to bring a car battery and a can of gasoline onto the bus. What should you do?
- Do not allow them on
- Allow them on short trips
- Let them on if they keep them on their lap
- Let them put them in the aisle
显示答案
答案: A. Do not allow them on
Do not let riders carry common hazards such as car batteries or gasoline.
第3题，共35题
Where may standing riders NOT stand on a bus?
- Forward of the rear of the driver's seat
- Near the rear door
- In the middle of the aisle, holding a rail
- Behind the standee line
显示答案
答案: A. Forward of the rear of the driver's seat
No rider may stand forward of the rear of the driver's seat.
第4题，共35题
What is a standee line?
- A 2-inch floor line that standing riders must stay behind
- A painted line on the road at each bus stop
- The line of riders waiting at the door to board
- A painted line outside where riders wait to board
显示答案
答案: A. A 2-inch floor line that standing riders must stay behind
Buses that allow standing must have a 2-inch line on the floor or other marking. All standees must stay behind it.
第5题，共35题
When you arrive at a stop, what should you announce to riders?
- Only the name of the next stop on the route
- Where you are, why you stopped, departure time and bus number
- Only the weather and the temperature outside
- Nothing; riders should ask if they need to know
显示答案
答案: B. Where you are, why you stopped, departure time and bus number
Announce where you are, why you stopped, when you leave and the bus number.
第6题，共35题
What should you remind riders about as they leave the bus?
- To hurry so the bus stays on time
- To use the emergency exit to save time
- To leave a tip for the driver
- To take their carry-ons and watch their step
显示答案
答案: D. To take their carry-ons and watch their step
Remind riders to take carry-on items. If the aisle is lower than the seats, warn them about the step-down.
第7题，共35题
Why should charter drivers keep riders off the bus until departure time?
- To help prevent theft or vandalism
- To keep the bus cool
- To save fuel
- It is required by all states
显示答案
答案: A. To help prevent theft or vandalism
Not letting riders board early helps prevent theft or vandalism of the bus.
第8题，共35题
When should you explain the rules about smoking, drinking and radios to riders?
- At the start of the trip
- Only when someone breaks a rule
- At the end of the trip
- Never; riders know them
显示答案
答案: A. At the start of the trip
Explaining rules at the start helps avoid trouble later.
第9题，共35题
At a stop, when should you start moving again?
- As soon as the doors close
- When riders are seated or braced
- While riders are still boarding
- When the next bus arrives
显示答案
答案: B. When riders are seated or braced
Wait until riders are seated or holding on before starting. Start and stop as smoothly as possible.
第10题，共35题
A rider is drunk and disruptive. Where should you let them off?
- Anywhere, right away, to protect the others
- At a safe, well-lit place, such as the next stop
- On a dark highway shoulder, away from traffic
- Between stops in an empty area, to calm down
显示答案
答案: B. At a safe, well-lit place, such as the next stop
You must protect the rider and others. Do not discharge a rider where it would be unsafe for them.
第11题，共35题
Where do many bus crashes happen?
- In bus garages
- At intersections
- On long straight highways
- In parking lots at night
显示答案
答案: B. At intersections
Intersections are a common place for bus crashes. Use caution even when a signal or sign controls traffic.
第12题，共35题
Bus mirrors often get scraped at stops. How can you prevent this?
- Drive faster past any obstacles
- Leave room for poles and tree limbs at stops
- Fold the mirrors in at every stop
- Stop in the traffic lane instead
显示答案
答案: B. Leave room for poles and tree limbs at stops
Remember the clearance your bus needs and watch for poles and tree limbs at stops.
第13题，共35题
You are pulling out from a bus stop. What should you NOT assume?
- That you need a large enough gap
- That traffic may be coming
- That the mirrors need checking
- That other drivers will brake for you
显示答案
答案: D. That other drivers will brake for you
Wait for a big enough gap. Never assume other drivers will brake to give you room.
第14题，共35题
Your bus leans outward on a banked curve. What does this mean?
- The suspension is broken
- The bus is too light
- You are going too fast
- The tires are overinflated
显示答案
答案: C. You are going too fast
If the bus leans toward the outside on a banked curve, slow down. Posted curve speeds may be too fast for buses.
第15题，共35题
Where must a bus carrying passengers stop at a railroad crossing?
- Right at the tracks
- At least 100 feet before the tracks
- Between 15 and 50 feet before the tracks
- It does not have to stop
显示答案
答案: C. Between 15 and 50 feet before the tracks
Every bus transporting passengers must stop within 50 feet of, and not closer than 15 feet to, the tracks.
第16题，共35题
What may you do at a railroad crossing to help you see or hear a train?
- Ask riders to talk louder
- Turn up the radio
- Turn on the high beams
- Open the forward door
显示答案
答案: D. Open the forward door
Listen and look both ways. Open the forward door if it helps you see or hear an approaching train.
第17题，共35题
After a train passes, what should you check before crossing?
- That the gates are still down
- Nothing; it is safe once one train passes
- That your riders are standing
- That no other train is coming on another track
显示答案
答案: D. That no other train is coming on another track
Make sure no other train is coming on other tracks before you cross.
第18题，共35题
What must you never do while crossing tracks in a bus with a manual transmission?
- Change gears
- Keep moving
- Use a low gear
- Look both ways
显示答案
答案: A. Change gears
Never change gears while crossing the tracks.
第19题，共35题
At which crossing may a bus slow down and look carefully instead of stopping?
- Where a police officer is directing traffic
- At any crossing late at night
- At any crossing with a crossbuck sign
- At crossings with flashing red lights
显示答案
答案: A. Where a police officer is directing traffic
You need not stop, but must slow and check, at streetcar crossings, where an officer or flagger directs traffic, at green signals, and at exempt or abandoned crossings.
第20题，共35题
A drawbridge has no signal light or attendant. What must a bus do?
- Stop at least 50 feet before it and check it is closed
- Sound the horn and drive across slowly
- Drive across without stopping if no boats are near
- Stop on the bridge itself to look for boats
显示答案
答案: A. Stop at least 50 feet before it and check it is closed
Stop at least 50 feet before the draw of the bridge and look to see that it is completely closed before crossing.
第21题，共35题
A drawbridge has a green light or an attendant directing traffic. What must a bus do?
- Stop on the bridge and look around
- Stop at least 50 feet before the draw
- Unload the riders before crossing
- Slow down and check that it is safe
显示答案
答案: D. Slow down and check that it is safe
With a traffic signal showing green or an attendant controlling traffic, you do not have to stop, but you must slow down.
第22题，共35题
Interstate carriers must have a written inspection report for each bus. When is it done?
- Only when a rider complains
- Once a month
- At the end of each day or shift
- Only after a crash
显示答案
答案: C. At the end of each day or shift
Inspect the bus at the end of each shift. The report lists defects that could affect safety or cause a breakdown, or says there are none.
第23题，共35题
What should you report after a trip, besides mechanical problems?
- Any tips that riders left for the driver
- The music that was played during the trip
- Rider damage to seats, handholds, exits and windows
- The names of all the riders on the trip
显示答案
答案: C. Rider damage to seats, handholds, exits and windows
Report rider damage so mechanics can repair it before the bus goes out again.
第24题，共35题
What extra items should mass transit drivers check after a trip?
- Rider signaling devices and brake-door interlocks
- The colors on the destination sign
- The paint on the outside of the bus
- The fare box, and nothing else
显示答案
答案: A. Rider signaling devices and brake-door interlocks
Mass transit drivers should also make sure signaling devices and brake-door interlocks work.
第25题，共35题
May you refuel a bus with riders on board inside a closed building?
- Yes, if no one smokes
- Yes, if the doors are open
- Yes, for short refuels
- No, never
显示答案
答案: D. No, never
Avoid fueling with riders aboard unless absolutely necessary, and never in a closed building.
第26题，共35题
While driving, what should you avoid doing with riders?
- Watching them in the inside mirror
- Talking with them or other distractions
- Announcing each stop clearly
- Greeting them when they board
显示答案
答案: B. Talking with them or other distractions
Don't talk with riders or do any other distracting activity while driving.
第27题，共35题
When may you tow or push a disabled bus with riders on board?
- Only on highways with a wide shoulder
- Any time, as long as the riders stay seated
- Only if getting off would be unsafe, and only to a safe spot
- Only at night, when traffic is light
显示答案
答案: C. Only if getting off would be unsafe, and only to a safe spot
Don't tow or push a disabled bus with riders aboard unless getting off would be unsafe. Move it only as far as the nearest safe spot.
第28题，共35题
What does a brake-door interlock do on some transit buses?
- Turns off the engine at every bus stop
- Locks all the doors while the bus is moving
- Opens the doors on its own at every stop
- Holds the bus still while the rear door is open
显示答案
答案: D. Holds the bus still while the rear door is open
The interlock holds the bus still while the rear door is open.
第29题，共35题
When does a brake-door interlock release?
- When the engine is turned off
- After 10 seconds
- When the rear door closes
- When the driver honks
显示答案
答案: C. When the rear door closes
The interlock releases when you close the rear door.
第30题，共35题
Can you use the brake-door interlock instead of the parking brake?
- Yes, at night
- Yes, on flat ground
- Yes, always
- No
显示答案
答案: D. No
Do not use the interlock system in place of the parking brake.
第31题，共35题
Many large buses warn of low air pressure earlier than the 60 psi minimum. At about what pressure does their warning often come on?
- 125 psi
- 20 to 45 psi
- 80 to 85 psi
- 60 psi exactly
显示答案
答案: C. 80 to 85 psi
Large buses often have low air warnings that come on at 80 to 85 psi.
第32题，共35题
Your bus is 40 feet long and you are traveling at 50 mph. What following distance should you keep?
- At least 5 seconds
- At least 8 seconds
- At least 2 seconds
- At least 4 seconds
显示答案
答案: A. At least 5 seconds
Leave 1 second per 10 feet of length (4 seconds) plus 1 second because you are above 40 mph.
第33题，共35题
When must the bus driver wear a seat belt?
- Only on highways and freeways
- Only when no riders are aboard
- Always, whenever the bus is moving
- Only at night or in bad weather
显示答案
答案: C. Always, whenever the bus is moving
The driver's seat must have a seat belt, and you should always use it.
第34题，共35题
During your inspection you find aisles and stairwells blocked with items. What should you do?
- Leave them; riders can step over
- Put more items there
- Only clear them at night
- Clear them before the trip
显示答案
答案: D. Clear them before the trip
Make sure aisles and stairwells are always clear so riders can move and get out safely.
第35题，共35题
While you scan the inside of the bus during a trip, what should you remind riders to do?
- Stand near the driver
- Move to the front seats
- Open the emergency exits for air
- Keep their arms and heads inside the bus
显示答案
答案: D. Keep their arms and heads inside the bus
Scan the interior as well as the road, and remind riders to keep arms and heads inside the bus.

相关测试