CDL Texas- Doubles/Triples Test with Complete Solutions
Which statement is true about driving doubles/triples? - ANSWER-A sudden steering movement can result in the rear trailer tipping over. Which combination of tractor-trailers suffers most from the crack-the-whip effect? - ANSWER-Triple combination. What's the correct following distance when pulling a 100 foot. double at 30 mph? - ANSWER-At least 10 seconds. What's the correct following distance when pulling a 100 foot triple combination at 50 mph? - ANSWER-At least 11 seconds. What is likely to happen when the trailer wheels of a double goes into a skid? - ANSWER-The trailer will jackknife. What are correct statements about quick steering movements with doubles and triples? - ANSWER-Doubles/triples tip over easily from quick steering. What are some good tips about seeing ahead when driving doubles or triples? - ANSWER-Allow more following distance AND Look far ahead so you can slow down gradually AND Looking ahead increases your safety. Safe drivers of doubles or triples should: - ANSWER-Use special care in bad weather and mountain driving AND Allow more following distance than when driving a car AND Look far ahead and drive smoothly. If you want to hook a combination to a second trailer that has no spring brakes and you don't have wheel chocks you should: - ANSWER-Supply air to the trailer air system (from the tractor), and disconnect the emergency line. If you want to hook a combination to a second trailer, how do you keep the trailer from moving? - ANSWER-By using the trailer emergency brakes OR By using the trailer spring brakes OR By using wheel chocks. Where should the heaviest trailer be placed when connecting two or more trailers to the tractor? - ANSWER-In the front, next to the tractor.
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- January 22, 2023
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