Doubles/Triples CDL Practice Questions
32 free Doubles/Triples CDL-style practice questions.
Which of these is NOT a good thing to do when driving on slippery roads?The best way to keep brakes from getting too hot while going down long grades is to:The best way to stop any skid is to:During normal operation, the brakes of the double/triple trailer are controlled by:You are doing a walk-around inspection of a double or triple trailer rig. You should be sure the converter dolly…You must drive through deep or flowing water; you should not:Which of these statements about the handling of doubles and triples is true?The converter dolly air tank drain valve on coupled double/triple trailers should be:How can you be sure you supplied air to a second trailer?Before you can supply air to the air tanks of a second trailer, you need to:Some large trucks have curved mirrors. These mirrors:You are driving a 100-foot truck with double trailers at 30 mph. The road is dry, and visibility is good.…The trailer air supply control should pop out when the air pressure falls into the pressure range of:You are driving a 100-foot truck with double trailers at 50 mph. The road is dry, and visibility is good.…Which of these statements about managing space to the sides is true?You are driving a set of doubles, and a set of trailer wheels goes into a skid. Which of these…Converter dollies:Empty trucks:When driving a truck with more than one trailer, which trailer should be first behind the truck?To check if the converter dolly is securely coupled to the rear trailer, you should:You are driving at night and you must dim your headlights for traffic. Good speed management says you should:You are visually checking the coupling of a converter dolly to the rear trailer. How much space should be between…Which of these statements about quick steering movements and doubles/triples is true?Which of these will result in the best control on curves?Crack-the-whip effect occurs when:If you want to couple a second trailer to your combination vehicle, secure it by using:When testing the coupling of the double trailer, the landing gears of the rear trailer should be:You want to hook your combination to a second trailer that has no spring brakes. To do this without wheel…You are driving on a slippery road during the day. What does the driver's manual say about how much space…You should check trailer height before connecting a converted dolly to a second or third trailer. The trailer height is…When you turn with the tractor/triple trailer combination, the wheels that off-track (cheat) the most are:What is likely to happen if the pintle hook is unlocked with the dolly still under the second trailer?