What is the requirement for tread groove depth on the front tires of any bus truck or truck tractor?
4/32 of an inch
(b) Any tire on the front wheels of a bus, truck, or truck tractor shall have a tread groove pattern depth of at least 4/32 of an inch when measured at any point on a major tread groove.
Which of the following is a tire condition that is prohibited?
Federal motor carrier safety regulations prohibit a vehicle from being operated in interstate commerce on any tire that: (1) has a body ply or belt material exposed through the tread or sidewall, (2) has any tread or sidewall separation, (3) is flat or has an audible leak, or (4) has a cut that exposes the ply or belt …
What is the minimum tread depth allowed by DOT for steer tires?
Per code section 393.75 (c), “tires shall have a tread groove pattern depth of at least 2/32 of an inch when measured in a major tread groove.” It also states that measurements can’t be taken “where tie bars, humps, or fillets are located.” DOT steer tire regulations state that depth is at least 4/32 of an inch.
How many psi should a semi tire have?
It’s usually 120, 130 or 140 psi. Most highway tractors will have rims rated for a maximum of 120 psi cold inflation pressure.
Can you drive 2 32 tires?
New tires typically come with 10/32” or 11/32” tread depths, and some truck, SUV and winter tires may have deeper tread depths than other models. The U.S. Department of Transportation recommends replacing tires when they reach 2/32”, and many states legally require tires to be replaced at this depth.
How many 32nds are new tires?
In the United States, tire tread depth is measured in 32nds of an inch. New tires typically come with 10/32” or 11/32” tread depths, and some truck, SUV and winter tires may have deeper tread depths than other models.
Why do truckers thump their tires?
A quick and easy way to check tire pressure is by thumping your tires. Some trucks have many tires and tire thumping is the fastest method for checking tire pressure before hitting the road.
Can you put recaps on steer tires?
Title 49, Part 393.75 (d) of the Federal Motor Carrier Safety Regulations states that no bus shall be operated with regrooved, recapped, or retreaded tires on the front wheels.
Are bald tires better on ice?
It takes a longer distance to stop if the car tires are bald. Considering that it already takes longer for a car to stop on snowy or icy winter roads, a bald tire makes stopping even more difficult. Bald tires increase the risk of hydroplaning on icy and snowy roads.
Does temperature affect PSI?
Just as colder weather can cause PSI to drop, excessive heat can cause your tire pressure to temporarily increase. For every 10 degrees of increased temperature, your tires can be expected to increase by 1-2 pounds of pressure.
What is 49 CFR?
Title 49 of the Code of Federal Regulations. CFR Title 49 – Transportation is one of fifty titles comprising the United States Code of Federal Regulations (CFR). Title 49 is the principal set of rules and regulations (sometimes called administrative law) issued by the Departments of Transportation and Homeland Security, federal agencies of the United States regarding transportation and transportation related security.
What is Title 49?
Title 49 of the United States Code is a code that regards the role of transportation in the United States of America. The title was enacted by Pub.L. 95–473, § 1, October 17, 1978, 92 Stat. 1337; Pub.L. 97–449, § 1, January 12, 1983, 96 Stat. 2413; and Pub.L. 103–272, July 5, 1994, 108 Stat. 745 (subtitles II, III, and V-X)
What is Title 49 Transportation?
This is an operations position responsible for performing clerical duties within the transportation department including maintaining all regulatory compliance as required by the Department of Transportation (DOT). Gather, organize and process driver daily paperwork, logs, manifest, vehicle inspection, etc.
What medications disqualify a CMV driver?
Xanax