the converter dolly air tank drain valve should be

Try our free CDL Doubles and Triples Test Question and Answers Quiz online. The rear trailer of a triple A converter dolly is If a converter dolly has spring brakes, you release the brakes by You have connected the converter dolly to the front semitrailer and then connected the rear semitrailer to the converter dolly. All other trailer air functions use the emergency line. 27. Tractor-trailers are considered combination vehicles. rear brakes will not work properly. Disconnect the glad-hand at the front of the first trailer and listen for air flow. Driving doubles/triples is also more dangerous in hot and cold weather driving, as well as on mountain roads. Make sure the converter dolly air tank drain valve is closed. How can you test that air flows to all trailers? you should keep atleast __seconds of space ahead of you. the best way to keep brakes from getting too hot while going down long grades is to : go slow and use only light, steady pressure on the brakes, you are driving a 100ft truck with double trailers at 30mph. You must check that all shut-off valves are in the open position except the ones at the back of the last trailer, which must be closed. None of the above, 2. 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. 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. Which the hand valve on, you should test the trailer brakes by opening the service line valve at the rear of the trailer. Doubles and triples take up more space than other commercial vehicles. The dolly will have a yellow lamp on the drivers (left) side. X D5^4aX{Ka)nT)Ac g" endstream endobj 58 0 obj 108 endobj 23 0 obj << /Type /Page /Parent 19 0 R /Resources 24 0 R /Contents [ 31 0 R 33 0 R 35 0 R 46 0 R 48 0 R 50 0 R 52 0 R 54 0 R ] /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 24 0 obj << /ProcSet [ /PDF /Text ] /Font << /F2 37 0 R /F4 40 0 R /TT2 28 0 R /TT4 26 0 R /TT6 42 0 R /TT8 44 0 R >> /ExtGState << /GS1 55 0 R >> /ColorSpace << /Cs5 29 0 R >> >> endobj 25 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 0 /Descent -211 /Flags 32 /FontBBox [ -222 -325 1072 1037 ] /FontName /ArialMT /ItalicAngle 0 /StemV 0 >> endobj 26 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 121 /Widths [ 278 0 355 0 0 0 0 191 333 333 0 0 278 333 278 278 556 556 556 556 556 556 556 556 556 556 278 0 0 0 0 556 0 667 667 722 722 667 611 778 722 278 0 667 556 833 722 778 667 0 722 667 611 722 0 944 0 667 0 0 0 0 0 0 0 556 556 500 556 556 278 556 556 222 222 500 222 833 556 556 556 556 333 500 278 556 500 722 500 500 ] /Encoding /WinAnsiEncoding /BaseFont /ArialMT /FontDescriptor 25 0 R >> endobj 27 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 0 /Descent -211 /Flags 96 /FontBBox [ -262 -325 1082 1025 ] /FontName /Arial-ItalicMT /ItalicAngle -15 /StemV 0 >> endobj 28 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 118 /Widths [ 278 0 0 0 0 0 0 191 0 0 0 0 0 333 278 278 556 556 556 556 556 556 556 556 0 0 0 0 0 0 0 0 0 0 0 722 722 0 0 0 0 0 0 0 0 833 0 0 667 0 0 0 611 0 0 0 0 0 0 0 0 0 0 0 0 556 556 500 556 556 0 556 0 222 0 0 222 833 556 556 556 0 333 500 0 556 500 ] /Encoding /WinAnsiEncoding /BaseFont /Arial-ItalicMT /FontDescriptor 27 0 R >> endobj 29 0 obj [ /CalRGB << /WhitePoint [ 0.9505 1 1.089 ] /Gamma [ 2.22221 2.22221 2.22221 ] /Matrix [ 0.4124 0.2126 0.0193 0.3576 0.71519 0.1192 0.1805 0.0722 0.9505 ] >> ] endobj 30 0 obj 638 endobj 31 0 obj << /Filter /FlateDecode /Length 30 0 R >> stream The road is dry and visibility is good. Open. What value of channel width must the design use? if you have traffic on both sides of your vehicle and something is blocking your lane, a move to the right still be best. A converter dolly is still under the second trailer when you unlock the pintle hook. There is no requirement or exact standard for color coding. Converter dollies: B If youre reading this, youre probably asking yourself, Should I Read More, One aspect of living as a truck driver is that you are constantly away from home and have to purchase all your meals on the road. C. make things look larger and closer to you than they really are, When hauling triple trailers at a speed less than 40 mph, you should leave at least _____ second(s) for every ten feet of your truck between you and the vehicles ahead of you. B. you should avoid traveling next to others whenever possible you should check the trailer height before connecting a converter dolly to a second or third trailer. Slow to the safe speed before entering, then accelerate slightly through the curve. Double and triple trailers increase not only the operators risk of safety, but also the other motorists around him. King pin. 7. What three methods can you use to secure a second trailer before coupling? 3. dress gifs. You should keep at least _____ seconds of space ahead of you: You are driving with double trailers and must use your brakes to avoid a crash. If you have traffic on both sides of your vehicle and something is blocking your lane, a move to the right still be best. It's a fifth wheel, not a sixth wheel. The dolly tow bar may fly up, possibly causing injury and making it very difficult to re-couple. Many scientists are concerned that the melting of Earth's sea ice will increase Earth's surface temperature. A. use light, steady pressure on the brake pedal New! These mirrors: make things seem smaller & further away then they really are. The converter dolly air tank drain valve on coupled double/triple trailers should be: Answer: Closed. B. the emergency line valve open and release air D. Make sure the spare tire is secured, if it has one. C. closed, You can release the dolly brakes by: In order to receive your Doubles and Triples endorsement, it is required that you pass the state's official CDL written Knowledge exam. C 0000001162 00000 n When checking your air lines, they must be secure and? kingpin. What is most likely to happen if the trailer protection valve of a double or triple trailer does not function correctly? C Hit the article to see the way to back up your trailer like a pro! All material on this website is copyrighted. good speed management says you should, may have poor traction due to bouncing and wheel lock up. The road is dry and visibility is good. you are driving on a slippery road during the day. Which of the following will probably happen if you are driving a double rig and a set of trailer wheels goes into a skid? you are driving at night and you must dim your headlights for traffic. The road is dry and visibility is good. Open What is a converter dolly? Before coupling a trailer, you should make sure it is at the right height using? We have a new version of this program. Stay up to date on truck driving industry news. with the hand valve on, you should test the trailer brakes by opening the service line valve at the rear of the trailer. "Glad hands" are coupling devices used to connect the service and emergency air lines from the truck or tractor to the trailer. Watch the wording of the question AND the answers A safe driver will look for all of the above. None of the above, 5. You should check the height of the trailer before connecting a converter dolly to a second or third trailer. You are doing a walk around inspection of a double or triple trailer rig. 2. 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: 1) the first one is to pump down the air pressure in the system between 20 and 45psi (pounds per square inch) the trailer air supply will pop out, shutting air off to the trailer. Explore now! This has the same value as the %%SCORE%% Variable on the Final Screen. The shut off valves prevent air from going any further. They are filled by the emergency (supply) line from the tractor. B. allow one vehicle length for every 10,000 lbs of gross vehicle weight In the coupling system, the locking jaws should be fixed around? 1/2 to 3/4 of an inch If there is a trailer D Release Dolly breaks by opening the air tank petcock or if the dolly has a spring break, use the Dolly parking brake control . Some do. Calculate the net energy change in kilojoules per mole that takes place on formation of MgF2_22(s) from the elements: Heat of sublimation for Mg(s) = 147.7 kJ/mol Eea_{ea}ea for F(g) = -328 kJ>mol, Bond dissociation energy for F2_22(g) = 158 kJ>mol Ei1_{i1}i1 for Mg(g) = 737.7 kJ>mol, Electrostatic interactions in MgF2_22(s) = -2957 kJ/mol Ei2_{i2}i2 for Mg(g) = 1450.7 kJ/mol. 4. That there is some space between the upper and lower fifth wheel. Make sure trailer height is correct. It is important not to let water and oil build up in the air tanks. Open, free 5. door. In this order, the shutoff valves at the rear of front trailers, the rear of the last trailer and the converter dolly air tank drain valve should be? What is one function of the tractor protection valve? B Sometimes, metal tags are attached to the lines with the words service and emergency stamped on them. Chock the tires, park on level ground and charge the trailer air tank if it does They are not only longer, but also need more space because they cannot be turned or stopped suddenly. [Flashing Signals, Traffic Signals, Chapter 5 - Signals, Signs and Pavement Markings, North Carolina Driver's Handbook], One component of the DUI sentence in the state of Tennessee is twenty-four hours of litter pick-up wearing clothing that says "I am a drunk driver." You open the emergency line shut-off valve at the rear of the last trailer and hear air escaping. To test the tractor protection valve, charge the trailer air brake system, turn off the engine, and re-couple, You can if you want to, it does not matter. They provide the air pressure used to operate trailer brakes. B. keep other traffic out of your side space D 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. D It is extremely unlikely you will drive a trailer built before 1975, but for the written exam, you still may need to know that trailers built before 1975 were not required to have spring brakes. Safety chains should be secured to trailer(s). You should be sure the converter dolly air tank drain . 11 During normal operation the brakes of the double/triple trailer are controlled by: Did you know you can fill out one quick form here on TruckingTruth and apply to several companies at once for paid CDL training? The shut off valves, when in the open position, allows air to flow out to another trailer. be coupled to the rear of a tractor-trailer combination forming a hexagon bottom rig, A coupling device of one or two axles and a fifth wheel by which a semitrailer can be Each trailer and converter dolly has one or more air tanks. Our normal business hours are Monday-Friday 8 a.m. to 5 p.m. (Pacific Time). When connecting the glad hands, press the two seals together with the couplers at a 90-degree angle to each other. When you do this, you should hear: B and ensuring it is secure. D Open, latched When driving with more than one trailer, which trailer should be the first one behind the tractor? when testing the coupling of a double trailer the landing gears of the rear trailer should be, you must drive through deep or flowing water . C. fully raised, Which of these statements about speed management and braking is true? 0000008187 00000 n 1. You should keep at least ____ seconds of space ahead of you. Seriously! Which of these statements about the handling of doubles and triples is true? You should NOT: You are driving a set of doubles and a set of trailer wheels goes into a skid. In an application in which vGS=vDS=Vsupply=1.8V,v_{G S}=v_{D S}=V_{\text { supply }}=1.8 \mathrm{V},vGS=vDS=Vsupply=1.8V, a drain current of 2 mA is required of a device of minimum length of 0.18m.0.18 \mu \mathrm{m}.0.18m. A. use the engine brake or speed retarder 1 C A connection device of one axle used to disconnect a semitrailer combination vehicle That there is no space between upper and lower fifth wheel. Should the shut-off valves on the trailers be open or closed on a set of double trailers? Open the emergency line shut-off valve at the rear of the last trailer. The trailer height is right when: The trailer will be raised slightly when the converter dolly is backed under it. CDL Doubles and Triples Test Question and Answers 2023 [PDF]: Commercial Drivers License Doubles and Triples Endorsements Knowledge Test. In order to receive your Doubles and Triples endorsement, it is required that you pass the states official CDL written Knowledge exam. You want to lock your combination to a second trailer that has no spring brakes. You are driving with double trailers and must use your brakes to avoid a crash. 4. 0000008166 00000 n C. use a light touch on the accelerator and brake pedals, For coupled double and triple trailers, all of the converter dolly shut-off valves should be: Also, this page requires javascript. Learn more and apply here: The more heavily loaded semitrailer should be in first position behind the tractor. Correct answer percentage. B. are the easiest to stop since there is no shifting cargo When uncoupling a rear trailer, you should remove some weight from the dolly by? Why should you pull a dolly out from under a trailer before you disconnect it from the trailer in front? Ideal for replacing a worn, leaky drain valve on a compressor. Only trailers designed to be pulled with another trailer behind it will have a shut off valve. If your tanks have automatic drains, they will keep most moisture out, but you should still open the drains to make sure. The number of correct answers. Why should you not use the trailer hand valve while driving? If your converter dolly has to be moved over a distance to bring it to your semitrailer, you should? At section 2 downstream, the speed is 519 m/s. We wish you the best of luck in your endeavors and are pleased to be of assistance. Converter dolly air tank drain valve: CLOSED. Push the brake pedal as hard as you can and hold it there can and will get stuck on a raised railroad crossing. C. add "one car length for every 10 mph", Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer, Incidental Motions & Motions that Bring a Que. Each trailer and converter dolly has one or more air tanks. C. When coupling doubles and triples, be sure that the pintle-eye of the dolly is in place in the pintle hook of the trailer, You are driving on a slippery road during the day. Converter dolly air tank drain valve: CLOSED Air lines supported and glad hands properly connected. Pintle-eye of dolly in place in pintle hook of trailer (s). [Penalties Applying to Any DUI Conviction; Driving Under the Influence of Drugs or Alcohol (The "DUI" Law); Section B-7 Alcohol, Other Drugs and Driving; Tennessee Comprehensive Driver License Manual]. You are visually checking the coupling of a converter dolly to the rear trailer. If you leave this page, your progress will be lost. How should you test the coupling? Converter dollies have spring brakes. unsafe slow down even further, or better yet, find a safe haven and park until the TestPermit.com provides free unofficial review materials for a variety of exams. Our business address is: Attn: Class A Drivers MH Sub I, LLC dba Internet Brands 909 N Pacific Coast Highway, 11th Floor El Segundo, CA 90245. A. air escape from the open valve Connect Converter Dolly to Rear Trailer Make sure trailer brakes are locked and/or wheels chocked. Take this same test in our other testing modes How to Get a Hazardous Materials Endorsement, What is a CDL? A sudden movement with the steering wheel can result in a tipping over rear trailer. B How do you check to make sure the trailer height is correct before coupling? Have little braking power because they are small You MUST have air all the way to the back for all the brakes to work. If this activity does not load, try refreshing your browser. However, converter dollies and trailers built before 1975 are not required to have spring brakes. not have spring brakes. Refers to pulling two trailers at the same time, otherwise known as "pups" or "pup trailers" because they're only about 28 feet long. The application only takes one minute. But the brakes will hold only as long as there is air pressure in the trailer air tank. A low air buzzer will go off indicating something is wrong and either the front or the Speed for other vehicles is often too fast for a multi-combination unit! Which of these statements about managing space to the sides is true? 0000007508 00000 n What should you check for when inspecting the converter dolly? Safety fail-safe features of a tractor-trailer converter dolly. It is very important to keep the air supply clean. What is a converter dolly? C. foot pedal, Which of these statements about managing space to the sides is true? You should look into the back of the fifth wheel on a dolly to see if it is locked onto the kingpin, A safe speed on a curve for a straight truck or a single trailer combination vehicle may be too fast for double or triple trailers. If the dolly is a two axle unit then 1

Taurus Man Falling In Love With A Sagittarius Woman, Advantages And Disadvantages Of Distribution Centers, Palo Alto Saml Sso Authentication Failed For User, Fall Baseball Naperville, Articles T