Which devices are prohibited from motor vehicles?
- Red flashing lights
- Radar interference devices
- Muffler cutouts
- All of the above ✓
Answer: D. All of the above
All of the above: front flashing red lights, radar interference devices, and muffler cutouts are prohibited equipment.
Why this is the answer
The Texas handbook's list of equipment you must not have includes a muffler cutout, a radar interference device meant to disrupt speed-measuring radar or laser, and flashing red lights on the front except on emergency vehicles, school buses, and church buses. Since each device named in the choices appears on that banned list, the answer covering all three is correct.
Why the other answers are wrong
- A. Red flashing lights — Front flashing red lights are banned except for emergency vehicles, school buses, and church buses, but choosing only that item leaves out the muffler cutout and radar interference device.
- B. Radar interference devices — A radar interference device is one banned item, but choosing it alone ignores the front flashing red lights and the muffler cutout.
- C. Muffler cutouts — A muffler cutout is one banned item, but choosing it alone ignores the front flashing red lights and the radar interference device.
Remember it
When the handbook's banned-equipment list names each item in the choices, pick the choice that covers them all.