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TEXAS CVO KNOWLEDGE EXAM (TEXAS
RULES) SR 2024-2025 |75 QUESTIONS WITH CORRECT
DETAILED ANSWERS GRADED A
When turning right with a long vehicle or combination truck-trailer, if it is impossible to stay in the proper lane, you should: - correct ANSWER.....Approach the corner about 4 feet from the curb or right edge of the roadway, then if necessary complete the turn in the center of the street entered.
5. Motor vehicles must be equipped with turn indicator lamps of devices
if: - correct ANSWER.....The body or load extends 24 inches or more to the left of the corner.
6. The greatest length allowed by state law for any combination truck or
trạ iler is: - correct ANSWER.....65 feet.
7. The youngest age for licensing commercial operators is: - correct
ANSWER.....18 years.
8. All school buses, buses, taxis, and other vehicle hauling passengers for
hire or lease must carry a chemical type fire extinguisher of at least: - correct ANSWER.....One quart capacity.
9. Every bus or truck must be equipped on the rear with: - correct
ANSWER.....Two stop lights.
10. The number of trailers that may be pulled by one vehicle on the
open highway is determined by: - correct ANSWER.....Length limits.
11. Which of the following vehicles must have mud flaps when operated
on public roads: - correct ANSWER.....All vehicles with four or more tires on the rear axle except single truck tractors and pole trailers.
12. The top speed limit for heavy trucks on the open highway in the
daytime is: - correct ANSWER.....60 mph.
13. Clearance lights on the front of a vehicle must be: - correct
ANSWER.....Amber.
14. When a truck breaks down on a highway in the daytime the driver
should set out: - correct ANSWER.....Red triangles.
15. The greatest width allowed by State law for a truck including the load
is: - correct ANSWER.....102 inches. (8 1/2 feet)
16. Which of the following vehicle are required by State law to stop at
railroad grade crossings, outside city limits where no traffic control device is in operation? - correct ANSWER.....Buses carrying passengers for hire.
17. Signal turn indicators are required on motor vehicles when the body or
load of the vehicle extends to the left of the center of the steering wheel: - correct ANSWER.....24 inches.
the daytime? - correct ANSWER.....Red.
26. The lease agreement, when a commercial vehicle has been leased to
another for operation must be filed with: - correct ANSWER.....The Department of Public Safety.
27. School bus drivers must be at least: - correct ANSWER..... 18 years.
28. When it is necessary to put flares around the truck, one must be
placed beside the truck, the other two must be placed: - correct ANSWER.....100 feet to the front and rear of the vehicle.
29. When towing another vehicle with a chain or cable what color flag
must be attached to the chain: - correct ANSWER.....White.
30. Unless exempt by law, all rented or leased commercial vehicles
must: - correct ANSWER.....Have a sign on each side showing for whom the vehicle is being operated.
31. The top speed limit for a pick-up truck on U.S. or State
Highway in the daytime is: - correct ANSWER.....70 mph.
32. When going downhill with a heavy vehicle, it is unlawful to: - correct
ANSWER.....Coast.
33. The first thing the driver of a disabled truck or bus should do is: -
correct ANSWER.....Set out flares, fuses or reflectors.
34. Trailers and semi-trailers must have brakes that can be applied by
the driver when the gross weight reaches: - correct ANSWER.....4, pounds.
35. The purpose of requiring registration papers on trucks at all times is
to show: - correct ANSWER.....Weight of truck empty and how much it is registered to haul.
39. Clearance lamps mounted on the rear or on the side near the rear of a
vehicle must be what color? - correct ANSWER.....Red.
40. The greatest length allowed by State Law for any combination truck
and trailer is: - correct ANSWER.....65 feet.
41. The top speed limit for heavy trucks on the open highway at night is:
- correct ANSWER.....55 mph.
42. The greatest height allowed by State Law for a vehicle
including its load is: - correct ANSWER.....14 feet.
43. Before going down a steep grade with a heavy vehicle you should:
- correct ANSWER.....Shift to a lower gear.
44. The first thing the driver of a disabled truck or bus should do is: -
correct ANSWER.....Set out flares, fuses or reflectors.
45. Signal turn indicators are required on motor vehicles when the body or
load of the vehicle extends to the left of the center of the steering wheel: - correct ANSWER.....24 inches.
46. When one truck is following another truck or vehicle it must keep
far enough back for: - correct ANSWER.....One vehicle to enter safely between them.
47. When one vehicle is towing another the distance between the two
must not be greater than: - correct ANSWER.....15 feet.
48. The greatest weight allowed by State Law for any vehicle carrying
a load is: - correct ANSWER.....80,000 pounds.
more in width or feet or more in overall length. - correct ANSWER.....80; 30
54. Which of the following vehicles are not required to have mud- flaps? -
correct ANSWER.....Pole trailers.
55. The greatest length allowed by State Law for a single vehicle is: -
correct ANSWER.....45 feet.
56. Drivers of heavy trucks must have in their possession or on the truck:
- correct ANSWER.....A commercial or chauffer's license and registration papers for the truck.
57. The numbers of trailers that may ordinarily be pulled by one vehicle
on the open highway is determined by: - correct ANSWER.....Length
limits.
58. It is unlawful for the driver of which of the following motor vehicles to
change gears while actually crossing the tracks of an uncontrolled railroad grade crossing outside a business or residential district? - correct ANSWER.....Motor bus.
59. When mud flaps are required on trucks or trailers. They must reach
how close to the surface: - correct ANSWER.....8 inches.
60. The top speed for heavy trucks on the open highway in the daytime
is: - correct ANSWER.....60 mph.
61. Unless by special permission no vehicle may carry a load extending
more than: (Front) - correct ANSWER.....3 feet beyond the front.
designed to operate at a maximum speed of - correct ANSWER..... 25 mph or less.
67. In addition to vehicular hazard warning lights, every farm tractor and
self-propelled unit of farm equipment or implement manufactured or assembled after January 1, 1972 shall be equipped with: - correct ANSWER.....Two head lamps, one tail-light and two red reflectors
68. You may be required to unload to the limit required by the law if the
gross weight of your vehicle is found to exceed the maximum gross weight allowed by law and a tolerance of: - correct ANSWER.....5%.
69. Trucks manufactured or assembled prior to the made year 1960 are
required to have at least: - correct ANSWER.....One tail- light.
Every motor vehicle, trailer, semi-trailer, pole trailer, and combination of such vehicles equipped with brakes shall have the braking system so arranged that brakes are oppressed by: - correct ANSWER.....One control device.
71. Surge or intra brake systems may be used on trailers and semi-
trailers with gross weight of: - correct ANSWER.....15,000 pounds or less.
72. Generally if the trailer and the combination is 3,000 pounds or less, the
combination must able to stop within feet when traveing 20 mph - correct ANSWER.....40.
73. On vehicles requiring reflectors, these reflectors must be
Every trailer must have how many reflectors on the rear: - correct ANSWER.....Two
