What color must a Texas commercial vehicle’s front clearance lamps and front-side marker lamps show?
Correct answer: Amber
The same section specifies amber for the covered reflectors and center markers.
Source: Texas Transportation Code §547.353(a) ↗
What color must clearance lamps and side marker lamps mounted at or near the rear show under Texas law?
Correct answer: Red
Do not confuse rear marker color with front or center marker color.
Source: Texas Transportation Code §547.353(b) ↗
Under the ordinary Texas special-lighting mounting rule, at what height should a reflector be installed when the low-structure exception does not apply?
Correct answer: 24 to 60 inches
If the permanent structure is below 24 inches, the statute instead specifies as high as practicable on that structure.
Source: Texas Transportation Code §547.354(a) ↗
A semitrailer is 32 feet long. Which additional side equipment does the Texas 30-foot rule require?
Correct answer: A centrally mounted marker lamp and reflector on each side
The rule specifies central markers and reflectors on both sides; the applicable hazard-lamp requirement also remains.
Source: Texas Transportation Code §547.352(3) ↗
For an ordinary motor vehicle in the Texas slow-moving definition, what is its maximum design-speed threshold?
Correct answer: 25 mph or less
This refers to design capability, not simply a faster vehicle being driven slowly. Special vehicle provisions can also apply.
Source: Texas Transportation Code §547.001(7) ↗
May a slow-moving-vehicle emblem be used on a stationary gate as a general warning marker in Texas?
Correct answer: No
Texas restricts the emblem to its intended slow-moving-vehicle use, rather than stationary objects.
Source: Texas Transportation Code §547.005(a) ↗
How must a required slow-moving-vehicle emblem be oriented and maintained?
Correct answer: Base down at the rear, clean and reflective
Mount it so its visibility is not impaired. A dirty or obstructed emblem does not provide the intended warning.
Source: Texas Transportation Code §547.703(a) ↗
Outside a business or residential district, your truck follows another truck. If conditions permit, what extra purpose must the gap serve?
Correct answer: Let a passing vehicle safely enter the space
This truck-following provision complements the general duty to keep enough clear distance to stop safely.
Source: Texas Transportation Code §545.062(b) ↗
Traffic approaches in the opposing lane while a bicycle occupies your passing path. What does the Texas commercial safety guidance recommend?
Correct answer: Slow and follow until there is room to change lanes and pass safely
Large vehicles can disturb a two-wheeler with airflow. Wait for a safe lane-changing pass rather than crowding the rider.
Source: Texas DL-7C March2026,14.6(3),PDF185 ↗
If you must back across a sidewalk into a street, which extra checks does the Texas commercial chapter describe?
Correct answer: Stop at the sidewalk for people, then check traffic again at the curb
Avoid backing into the street when a safer arrangement is possible. When unavoidable, separately check the pedestrian area and roadway.
Source: Texas DL-7C March2026,14.6(2)(h),PDF185 ↗
