CDL - Commercial Motor Vehicle Test Questions and Answers

CDL - Commercial Motor Vehicle Test Questions and Answers Which of the following motor vehicles must stop at all railroad grade crossings outside a business or residential district Motor Bus The maximum number of trailers that may be lawfully towed by one vehicle is Two To find out the details about registering your particular vehicle you should consult County Tax Assessor-Collector When towing another vehicle with a chain, rope or cable, what color flag must be attached to the chain, rope or cable? White No combination of vehicles, other than a truck tractor-trailer combination, may exceed: 65 feet When going downhill with a commercial vehicle, it is unlawful to Coast Turn signal indicators are required on all motor vehicles manufactured after the model year 1959 All school buses, buses, taxis, and other vehicles hauling passengers for hire or lease must carry a chemical type fire extinguisher of at least: One Quart Capacity Registration papers are required to be in the possession of the driver or on the vehicle when operating All Trucks Clearance lights are required by state law for trucks or buses if the width is 80 inches or more The maximum number of trailers that may be towed by a commercial motor vehicle with an unloaded weight in excess of 2,500 pounds is. Two trailers The greatest length allowed by state law for a single motor vehicle other than a truck tractor is 45 feet It is unlawful to operate any motor vehicle on a highway with Flanges or lugs on the wheels Trailers and semitrailers must ordinarily have brakes that can be applied by the driver when the gross weight of the trailer exceeds: 4500 lbs When backing a large truck you should Have someone guide you When one truck is following another truck it must stay back far enough for how many vehicles to enter safely between them One Vehicle When stopped on the side of a divided highway, flags or reflectors must be placed: one 10 feet behind the vehicle, one 100 feet behind and one 200 feet behind the vehicle The greatest weight allowed by state law for any vehicle including its load is 80,000 pounds Every trailer must have how many reflectors in the rear two During times when lighted lamps are not required, the driver should set out: Two approved red flags The color of clearance lamps on the front of the vehicle must be Amber Which of the following vehicles are required by state law to stop at railroad grade crossings outside city limits where no traffic control device is in operation Buses carrying passengers for hire Every bus or truck manufactured after model year 1959 must be equipped on the rear with? two stoplights The maximum height from the ground for mounted reflectors on vehicles greater than 80 inches wide is 60 inches Clearance lamps mounted on the rear or on the side near the rear of a vehicle must be what color? Red When a load extends more than four feet over the rear of a vehicle, what color flag must be attached to the extreme end of the extension while driving in day time? Red A slow-moving vehicle emblem must be displayed only by: vehicles designed to be operated at speeds of 25 mph or less No passenger vehicle may be coupled with more than one trailer The greatest height ordinarily allowed by state law for a vehicle including its load is: 14 feet When one vehicle is towing another, the distance between the two must not be greater than 15 feet Every farm tractor manufactured after January 1, 1972 complies with state lighting laws by Having two head lamps All trailers or semitrailers must be equipped with clearance lamps, side marker lamps, and side reflectors if their width is: 80 inches or more When turning right with a long vehicle or combination truck-trailer, if it is impossible to stay in the proper lane, you should: 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 The first thing the driver of a disabled truck or bus should do is set out flares, reflectors or flags Vehicles transporting loose material (sand, dirt, gravel, etc.) that is capable of spilling or blowing from the vehicle must: meet loading and / or covering regulations to prevent spilling or blowing When mud flaps are required on trucks or trailers, they must reach how close to the surface of the highway? 8 inches To operate on the highway a motor vehicle or trailer having metal tires and weighing 5,000 pounds or more, you must: get a special permit from the Texas Department of Transportation To haul a load or move equipment that is wider, heavier, or longer than the law permits, you must: Obtain a permit from the Texas Department of Transportation Which of the following vehicles are not required to have mud flaps? Pole trailers Before going down a steep grade with a commercial vehicle you should Shift to a lower gear One purpose of requiring registration papers on trucks at all times is to show weight of the truck empty and how much it is registered to haul The length requirements of state law for vehicles or combinations of vehicles, including extensions of the front and rear, do not apply: within city limits When is it necessary to place flares around a truck on a two-way road with a clear view, one must be placed beside the truck, the other two must be placed: 100 feet to the front and rear of the vehicle Which of the following vehicles must have mud flaps when operated on public roads? All vehicles with four or more tires on the rear axle except single truck tractors and pole trailers