General Driving Knowledge — Massachusetts
Massachusetts CDL practice test: 429 free practice questions (Based on the official driver handbook). The official format is not yet verified; check the official site before your test. General Driving Knowledge: 146 questions.
Questions that do not fit a single topic: lane use, turning, signalling and other rules of the road.
This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines.
| Topic / Metric | Value |
|---|---|
| Topic | General Driving Knowledge |
| License test | Massachusetts CDL permit (CLP) knowledge tests |
| Topic questions | 146 (34% of 429 total) |
| Review status | This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines. |
Official handbook
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Questions (146)
1. The emergency exit door:
- Can be opened if the bus becomes too hot while being driven.
- Can be opened while the bus is being driven if the bus is carrying cargo.
- Can be opened to provide a better view while the bus is being backed.
- Should never be open while the bus is being driven. ✓
Answer: D. Should never be open while the bus is being driven.
The emergency exit door should never be open while the bus is being driven. The handbook's passenger-safety section gives a flat rule: never drive with an open emergency exit door or window. It also says the Emergency Exit sign must be easy to see and that any red emergency door light must work and be turned on when you use your outside lights. The passage gives no exception for a hot bus, cargo, or backing. That is why the correct choice is to keep the emergency exit door closed whenever the bus is being driven.
2. Where must placards be placed?
- Only on the front of a vehicle
- On the front, back and both sides of a vehicle ✓
- Only on the driver’s side of a vehicle
- Only on the passenger's side of the vehicle
Answer: B. On the front, back and both sides of a vehicle
3. While driving:
- A driver does not need to inform others of their intentions.
- A driver should only use turn signals if a vehicle is next to them.
- A driver should not use a turn signal if their lane change will be obvious.
- A driver should always use turn signals to inform others of their intentions. ✓
Answer: D. A driver should always use turn signals to inform others of their intentions.
A driver should always use turn signals to inform others of their intentions. The handbook's communicating section says plainly that other drivers cannot know what you plan to do until you tell them, and that signaling your intentions matters for safety. It then lays out general rules for signaling, with no exception for easy or empty-road situations. The turn signal section adds that you activate signals when required, at the right times, and cancel them once the turn or lane change is finished. Putting those together, signaling is how you tell surrounding traffic what you are about to do, so you do it every time rather than guessing who is watching.
4. When unloading students at a school, the driver should:
- Secure the bus by turning off the ignition switch. ✓
- Keep the key in the ignition and leave the driver’s compartment.
- Read a book while students unload.
- Not be on the bus.
Answer: A. Secure the bus by turning off the ignition switch.
When unloading students, secure the bus by turning off the ignition switch. The handbook's unloading procedure starts with making a safe stop at the designated unloading area, then turning off the ignition switch, and removing the key if you leave the driver's compartment. It also says students stay seated until you tell them to exit. Shutting the engine off is part of securing the bus before anyone gets off, so the correct choice is the one that has you switch off the ignition. The other choices have you away from the wheel, out of the bus, or distracted instead of watching the students.
5. Which of the following is not an acceptable location to keep hazardous materials' shipping papers?
- In a pouch on the driver’s side door
- In a pouch on the passenger’s side door ✓
- Within reach of the driver while the seat belt is fastened
- On the driver’s seat while the driver is outside of the vehicle
Answer: B. In a pouch on the passenger’s side door
The unacceptable location is a pouch on the passenger’s side door. The handbook lists the places where hazardous materials shipping papers may be kept. While you are driving, they can be in a pouch on the driver’s door or within your reach with your seat belt fastened. When you are out of the vehicle, they can stay in the driver’s door pouch or on the driver’s seat. A passenger-side door pouch is not on that list. The papers need to be found quickly after a crash, so the allowed spots are tied to the driver’s side and the driver’s reach.
6. When traction is poor, a driver should accelerate slowly:
- Because it is best to always accelerate very slowly.
- So they do not lose control of their vehicle. ✓
- So the driver does not accelerate faster than the vehicle ahead.
- To be the last vehicle through an intersection.
Answer: B. So they do not lose control of their vehicle.
Accelerate slowly when traction is poor so you do not lose control of your vehicle. The handbook says to speed up very gradually when traction is poor, such as in rain or snow. Using too much power can make the drive wheels spin, and that can cause you to lose control. It also says that if the drive wheels begin to spin, you should take your foot off the accelerator. This supports the answer: slow acceleration helps you keep control when the road is slick.
7. During a static leakage test, the maximum leakage rate for a double combination vehicle is:
- 3 psi in one minute. ✓
- 6 psi in one minute.
- 8 psi in one minute.
- 4 psi in one minute.
Answer: A. 3 psi in one minute.
For a double combination vehicle, the maximum static air leakage rate is 3 psi in one minute. The handbook's static air leakage test starts with a fully charged system, the engine off, and the parking brake released, then has you watch the gauge for one minute. In that test, the loss should be less than two psi per minute for a single vehicle and less than three psi per minute for a combination vehicle. A double combination is still a combination vehicle, so the limit is 3 psi in one minute. The procedure where you hold the foot brake for a minute is a separate check with a different allowance.
8. Federal and state laws require:
- Drivers to regularly inspect their vehicles. ✓
- Drivers to inspect their vehicles, but only if they believe there may be a problem.
- Drivers to inspect their vehicles if planning to travel out-of-state.
- Drivers to inspect their vehicles, but only if they will be transporting hazardous materials.
Answer: A. Drivers to regularly inspect their vehicles.
Federal and state laws require drivers to regularly inspect their vehicles. Federal and state laws require drivers to inspect their vehicles. The handbook explains that an inspection can uncover a defect before it causes a breakdown or crash, and it says inspectors may also check your vehicle and put an unsafe one out of service until fixed. It also presents inspection as a pre-trip duty that helps determine whether the vehicle is safe to drive. That makes inspection a required part of operating the vehicle, not something you do only when you already suspect trouble or only in special situations.
9. Who is responsible for identifying the hazard class of materials being shipped?
- The shipper ✓
- The carrier
- The driver
- The mechanic
Answer: A. The shipper
The shipper is responsible for identifying the hazard class of materials being shipped. The handbook ties the basic description, shipping name, identification number, and required labels to the shipper. It says to compare the shipping paper with the markings and labels, and to make sure the shipper shows the correct basic description and verifies that the proper labels are on the packages. Since the labels reflect the hazard class, the shipper is the party responsible for identifying it on the shipment.
10. If transporting mass explosives:
- The vehicle must always be placarded. ✓
- The vehicle only needs to be placarded if carrying more than 200 pounds.
- The vehicle does not need to be placarded.
- Only rural roads should be used.
Answer: A. The vehicle must always be placarded.
Mass explosives must always be placarded, regardless of the amount being carried. The handbook divides placarding into two tables. Materials in Table 1 need placards at any quantity, while Table 2 materials generally need them only once the total reaches 1,001 pounds, except for bulk packaging. The Table 1 list includes 1.1 Mass Explosives. That means there is no weight cutoff for mass explosives; the vehicle is placarded even for a small shipment.
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Last checked: 2026-10-17 · Verified from official source
Updated: · Based on the official driver handbook