the converter dolly air tank drain valve should be

While doing a walkaround inspection of a double or triple, the converter dolly air tank drain valve should be _______, and the pintle hook should be _______. Which of these statements about quick steering movements and doubles/triples is true? 0000009577 00000 n You are doing a walk around inspection of a double or triple trailer rig. a. blood and possible answers include: open, free or closed, latched or closed, free or open, latched from TruckersDouble & Triple Trailer (CDL) Endorsement. C (done) Chp 23: Cash Flow + Working Capital, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. All other trailer air functions use the emergency line. P0420 code honda odyssey 2011 - pjigzp.wikifit.it All rights reserved 2022 TestPermit.com, CDL Doubles and Triples Test Question and Answers, Divided Highway Sign: Meaning, Quiz Definition, Example, Shape, Location, Color, Narrow Bridge Sign: Meaning, Quiz Definition, Example, Shape, Location, Color, STOP Sign 2023 Meaning, Quiz Definition, Example, Shape, Location, Color, Crossbuck Sign: Meaning, Definition, Example, Shape, Location, Color, Georgia CDL Permit Practice Test 2023 Study Guide [PDF], Georgia Motorcycle Permit Test 2023 with Study Guide [PDF], Georgia Permit Test 2023 (DDS Practice Test UPDATED), Georgia ADAP Practice Test 2023 Questions Answers Online, Ohio CDL Permit Practice Test 2023 Study Guide [PDF], Ohio Motorcycle Permit Test 2023 Study Guide [PDF]. D Explain why the waves that reflect from the far left edge of the plates in the given figure earlier exhibit destructive interference (zero intensity) at x=0x=0x=0. You will have greater length and more dead axles to pull with your drive axles than other drivers. You can find it here: High Road 2.0. D C which of these figures shows how the turn should be made, if you want to couple a second trailer to your combination vehicle, secure it by, the trailers spring brakes & wheel chocks. What is a converter dolly? On the middle trailer of a set of triples? Chock the tires, park on level ground and charge the trailer air tank if it does You have not finished your quiz. The shut off valves prevent air from going any further. You should reduce your speed by about _____ on a wet road. What happens if you cross the Emergency Air Line and the Service Air Line? B Locking jaws open 0000003240 00000 n _______ should be tested with the hand valve but controlled in normal operation with the foot pedal. It is important not to let water and oil build up in the air tanks. fumoto drain valve. how much space should be between the upper and lower fifth wheel? 0000004668 00000 n If you're pulling more than one trailer, all valves should be open except the very last trailer, which should have all valves in the closed position. You should keep at least ___ seconds of space ahead of you. You are doing a walk around inspection of a double or triple trailer You should be sure the converter dolly air tank drain valves are ____ and the pintle hook is ____. You can also reach us at (888) 830-2326. C. always keep your vehicle to the left side of your lane, When testing the coupling of double trailers, the landing gear of the rear trailer should be: Stop the vehicle by gearing down and sparingly You will speak with recruiters today. Free CDL - Doubles and Triples Flashcards | Quizlet If there is Nothing, the weight of the trailer will keep it in place, 10. go to the rear of the second trailer and open the emergency line shut off, before you can supply air to the air tanks of the second trailer you need too, open the shut-off valves at the rear of the first trailer & close the shut-off valves at the rear of the second trailer. Speed for other vehicles is often too fast for a multi-combination unit! Which is most likely to tip over: If the dolly is a two axle unit then 1 A converter dolly is still under the second trailer when you unlock the pintle hook. B. allow one vehicle length for every 10,000 lbs of gross vehicle weight Page 1 - Doubles/Triples Test Study Guide for the CDL 0000001107 00000 n Ensuring the safety of the public starts with a thorough inspection of all equipment. Flashcards - Doubles Tripes Test #4 - FreezingBlue Allow much more space than is needed for ideal driving condition. C. posted speed limits on curves are safe for all trucks, Empty trucks: You are driving with double trailers and must use your brakes to avoid a crash. Charge the system and pump the brakes with the window down. B. for doubles and triples, the fifth wheel should be all the way towards the tractor When you turn with the tractor/triple trailer combination the wheels that off-track (cheat) the most are: You should check trailer height before connecting a converter dolly to a second or third trailer. High Road 2.0! 0000005345 00000 n The service air line is only used to control the service brakes (when you press on the brake pedal or use the trailer hand-valve). When doing a walkaround inspection of a double or triple trailer, the shut-off valves should be _______ at the rear(s) of the front trailer(s) and ________ at the rear of the last trailer. The word part ferrit- means: Which of these are the correct positions for shut-off valves in doubles and triples? Newer trailers have spring brakes just like trucks and truck tractors. When coupling twin trailers, a converter dolly is. The trailer height is right when: The trailer will be raised slightly when the converter dolly is backed under it. What is the most common foundation brake found on heavy vehicles? In a certain electronic device, a three-stage amplifier is desired, whose overall voltage gain is 42 dB. 1. Double/Triple Flashcards | Quizlet A Converter dolly air tank drain valve: CLOSED. The front trailer in a set of double trailers is most likely to turn over due to the Crack-the-Whip effect. C. foot pedal, Which of these statements about managing space to the sides is true? You should NOT: You are driving a set of doubles and a set of trailer wheels goes into a skid. Some large trucks have curved (convex or spot) mirrors. PDF Section 7: Doubles and Triples - CDL Study The puzzle: At the far left edge, the plates are in contact, so the path length difference between rays 222 and 333 is zero. If you do cross the air lines, supply air will be sent to the service line instead of going to charge the trailer air tanks. For emergency braking you should: Use controlled or stab braking Converter dollies: Often do not have spring brakes The crack the whip effect that troubles trucks with trailers. A. air escape from the open valve utilize the brakes. Air valves should be closed on all trailers, Air valves should be open on all trailers, Rear of front trailers: closed, rear of last trailer: open, Rear of front trailers: open, rear of last trailer: closed. Doubles/Triples Endorsement Flashcards | Quizlet Unless you are draining the condensation out of the air tank, then the drain valve B. open the shut-off valves at the rear of the first trailer and close the shut-off valves at the rear of the second trailer The individual voltage gains of the first two stages are to be equal, while the gain of the third is to be one-fourth of each of the first two. If this activity does not load, try refreshing your browser. Either the front or the rear brakes will not work properly or fully. Push the brake pedal as hard as you can and hold it there How do you check to make sure trailer height is correct before coupling? The dolly will have a yellow lamp on the drivers (left) side. Be sure air-lines are supported and glad hands are properly connected. A turn of the glad hand attached to the hose will join and lock the couplers. Studying and applying oneself is the only way to successfully learn the information you need to know to pass all testing required to obtain your CDL. Also, this page requires javascript. Make sure you can hear air escaping with the valve closed. To do this without wheel chocks you should: Empty trucks: When parking your double or triple combination, you should look for a parking space In normal operation, trailer service brakes should be operated by? A. open Shut-off valves (at rear of trailers, in service and emergency lines): When pulling doubles or triples, what is important to know about the order of the trailers? This has the same value as the %%WRONG_ANSWERS%% Variable on the Final Screen. You should avoid traveling next to others when possible. Older trailers do not have spring brakes. The weight of the individual trailers will have no noticeable effect on the handling of the vehicle, The weight of all trailers should be nearly the same, within 2% of each other. There is more chance for skids and loss of traction. Why should you check for when inspecting the converter dolly? While it is general practice to make blue the service line, red the emergency line, and green the electrical line, these colors are not required by any laws or regulations. Like a trailer, a dolly equipped with ABS will have a yellow indicator light on the left side. Use the engine brake or speed retarder. They are filled by the emergency (supply) line from the tractor. 0000005554 00000 n C. close the shut-off valves at the rear of the first trailer and open the shut-off valves at the rear of the second trailer, To check that the converter dolly is securely coupled to the rear trailer, you should: Open, latched CDL Doubles and Triples Test Question and Answers We have a new version of this program. 1/4 in. The pressure in the service line is controlled by the brake pedal and the trailer hand brake. It is important to check the height of the trailer before connecting a converter dolly to a trailer. A 0000007032 00000 n Their drawbars differentiate them. should remain in the closed position. C. slow to a safe speed before entering the curve, then coast through it, Which of these is NOT a good thing to do when driving on slippery roads? Then, the air loss from the leak will lower the air tank pressure quickly. Email Updates When New Articles Are Posted. Any vehicle required by federal regulations to be placarded while transporting hazardous materials. We've all wondered if the adventure and challenges of life on the open road would suit us better than the ordinary day to day lives we've always known. The DMV doubles triples practice test will examine your knowledge of pulling double/triple trailers, coupling and uncoupling, inspecting doubles and triples, and checking air brakes. The couplers have a rubber seal that prevents air from escaping. 10. If you're only pulling one trailer, the shut off valves should always be closed or else the air will simply escape out the back of the trailer. If spare tire is on converter gear (dolly), make sure it is secured. 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. You are visually checking the coupling of a converter dolly to the rear trailer. Does a converter dolly have a separate air tank? - Wisdom-Advices We'll help you make the right choices and prepare for a great start to your trucking career. This will supply air to the emergency (supply) lines. coupled to the rear of a tractor-trailer combination forming a double bottom rig, Careful of the wording! not have spring brakes. Dobles - Triples Pruebas de prctica 3 - NJ 2023 - CristCDL.com Each trailer and converter dolly has one or more air tanks. However there are some states that allow doubles that are each 48 feet in length. If you crossed the air lines, you could drive away, but you would not have trailer brakes. If you leave this page, your progress will be lost. These dollies will have a yellow lamp on the left side of the dolly Questions You Should Know For Doubles And Triples 1. When only pulling one trailer, be sure the shut-off valves are all in the fully closed position. The best way to keep brakes from getting to hot while going down long grades is to: Go slow and use only light, steady pressure on the brakes.

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