How should you test the coupling? C. use stab or controlled braking, Which of these is true? It is important to check the height of the trailer before connecting a converter dolly to a trailer. the trailer will be raised slightly when the converter dolly is backed under it 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.
Doubles/Triples Air Brake Check - digital.ncdcr.gov Locking jaws closed on Connect the Converter Dolly to the Rear Trailer: Test the coupling by pulling against the pin of the second semitrailer. The tanks will hold enough air to allow the brakes to be used several times even if the compressor stops working. You should be sure the converter dolly air tank drain valves are _______ and the pintle hook is _____. Pintle hook latched. A dolly has lights, air tanks, air relays, air lines, air brakes, ABS, electrical connections, etc. 0000001375 00000 n
The word part ferrit- means: None of the above, 2. Visually check to make sure that the lead trailer is slightly higher than the center of None Which of these is most likely too occur? 0000006383 00000 n
If there is air there, then there is air towards the cab You want to hook up to the first trailer, then the converter dolly while it is lined up in They are filled by the emergency (supply) line from the tractor. Sometimes, metal tags are attached to the lines with the words service and emergency stamped on them. How much space should be between the upper and lower fifth wheel? While inspecting your converter dolly coupling, you should make sure there is _______ between the upper and lower fifth wheel. Should the shut off valves on the rear of the first trailer be open or closed on a set of double trailers? Which of the following will occur? securely fastened. Blue is used for the service lines, and red for the emergency (supply) lines. c. iron B. slow to a safe speed before entering the curve, then accelerate slightly through it Types of converter dollies. After 15 years on the road I wanted to help people understand the trucking industry and everything that came with the career and lifestyle of an over the road trucker. you are doing a walkaround inspection of a double or triple trailer rig. your vehicle is so long that you must swing wide to make a turn. Which of these statements about quick steering movements and doubles/triples is true? When uncoupling a rear trailer, you should remove some weight from the dolly by? Open, free not have spring brakes. With the hand valve on, you should test the trailer brakes by opening the service line valve at the rear of the rig. For emergency braking you should: May have poor traction due to bouncing and wheels lockup. b. cell Double and triple trailers increase not only the operators risk of safety, but also the other motorists around him. Which of the following is true about loading cargo into double or triple trailers? 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.
When uncoupling the converter dolly Why should you never unhook the Any combination of vehicles with a gross combined weight rating (GCWR) of 26,001 or more pounds, providing the gross vehicle weight rating (GVWR) of the vehicle being towed is in excess of 10,000 pounds. Otherwise, the dolly tow bar may fly up, possibly causing injury and making it very difficult to re-couple. Ensuring the safety of the public starts with a thorough inspection of all equipment. 9. A vehicle transporting hazardous materials is required to display placards where? You should be sure the converter dolly air tank . B. you should avoid traveling next to others whenever possible When inspecting the air brakes on doubles and triples, you wait for air pressure to reach normal, then push in the red trailer air supply knob. 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. D Our normal business hours are Monday-Friday 8 a.m. to 5 p.m. (Pacific Time). C . What types of trailers can get stuck on raised crossings? Locking jaws closed on B If a converter dolly is still under the second trailer and you unlock the pintle hook, what will probably happen? With the red knob pushed in on the tractor dash, the service line should have air in it. can and will get stuck on a raised railroad crossing. 1. When you do this, you should hear: Which of these statements about emergency steering is true? You wish to turn right from one two-lane, two-way street to another. Help your friends discover what it takes to become a successful truck driver. Air pressure is sent from the air tanks to the brakes by relay valves. A Remember however, that is just a suggestion. open, closed, closed: Term. 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. Converter dollies are connected to front trailers with a? coupled to the rear of a tractor-trailer combination forming a double bottom rig, A coupling device of one or two axles and a sixth wheel by which a semitrailer can be behind the shut-off valve then they need to remain open. True! C. posted speed limits on curves are safe for all trucks, Empty trucks: D Any vehicle, regardless of size, designed to transport 16 or more persons, including the driver. To prevent trailers from rolling over, you must steer gently and go slowly around corners, on ramps, off ramps and curves. You are driving with double trailers and must use your brakes to avoid a crash. In bad weather, slippery conditions and mountain driving, you must be especially careful if you drive double and triple bottoms. How do you check to make sure the trailer height is correct before coupling? When driving doubles or triples how should they be driven to avoid rollover or jackknifing: Should I Be A Truck Driver? Which of these statements about the handling of doubles and triples is true? If you do, there is a problem. B. the emergency line valve open and release air 10.
CDL Doubles & Triples Practice Test 3 - Classic Mode - Trucker Country This has the same value as the %%TIME_USED%% Variable on the Final Screen. 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: Unlock the pintle hook only if the trailer it is under is loaded, otherwise the dolly tow bar may fly up, possibly causing injury and making it very difficult to re-couple. 0000010306 00000 n
Remember, the service line is not used unless you depress the brake pedal or use the trailer hand valve. 1/3 For example: If you are traveling 60 MPH and it begins to rain, your suggested D 0000008915 00000 n
The road is dry and the visibility is good. C 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]. Tips for Backing Up a Trailer Like a Pro Trucker. Doubles and triples must be driven very smoothly to avoid rollover or jacknife. 0000001582 00000 n
symptoms of a bad fuel tank selector switch. When you uncouple twin trailers, the last step is to Converter dollies You want to hook your combination to a second trailer that has no spring brakes. The last trailer in a combination is most likely to turn over. Each trailer and converter dolly has one or more air tanks. If spare tire is on converter gear (dolly), make sure it is secured. If the air supply in the trailer air tank has leaked away, there will be no emergency brakes, and the trailer wheels will turn freely. It is important not to let water and oil build up in the air tanks. The road is dry and visibility is good. Hook dolly to front trailer. the converter dolly air tank drain valve on couple double/triple trailers should be: to check if the converter dolly is securely coupled to the rear trailer you should: pull gently against the pin of the second trailer. How can you test that air flows to all trailers? Once that's complete, then its an easy push back and the door. utilize the brakes. You are visually checking the coupling of a converter dolly to the rear trailer. We are an independent company focused on providing valuable motor vehicle and permit practice test information. To do this without wheel chocks you should: Empty trucks: When parking your double or triple combination, you should look for a parking space You should keep at least ____ seconds of space ahead of you. 6. The pressure in the service line is controlled by the brake pedal and the trailer hand brake. Always test the trailer brakes before driving with the hand valve or by pulling the air supply (tractor protection valve) control. ), a 15 year truck driving veteran, in January 2007. Each trailer and converter dolly has one or more air tanks. 1 Usually need a glad hand converter For emergency braking you should: You must steer gently when pulling trailers. B. releasing the pintle hook B. do not need to be checked as often as flat mirrors because they show a larger area Pull gently against the pin of the second trailer. A) one inch of space . How many different ways of coupling and uncoupling trailer combinations are there? You must steer gently when pulling trailers. The converter dolly air tank drain valve on coupled double and triple trailers should be: A. open B. closed C. partially opened B When inspecting coupled doubles and triples, make sure the pintle hooks are: A. secured to the safety pins B. in the open position C. latched C Which of these is true? To do this without wheel chocks you should: Empty trucks: When parking your double or triple combination, you should look for a parking space When checking the fifth wheel, you should make sure that it has enough? S-cam brakes are the most common style brakes on large trucks today. C. closed; unlatched, Which of these will result in the best control on a curve?
Page 1 - Doubles/Triples Test Study Guide for the CDL This has the same value as the %%SCORE%% Variable on the Final Screen. The road is dry and the visibility is good. 0000001775 00000 n
Which of these is the correct answer?
DOUBLE/TRIPLE CDL Flashcards | Chegg.com 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 [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]. The trailer height is right when: The trailer will be raised slightly when the converter dolly is backed under it. Why should you use chocks when parking a trailer without spring brakes? A driven with care to avoid losing control, Make sure the spare tire is secured, if it has one, Make sure the converter dolly air tank drain valve is closed, Make sure safety chains are secured to the trailers, All of the above. mTouch Quiz will automatically populate the fields below. Once you have coupled your rear trailer, you should test the coupling by? You should reduce your speed by about _____ on a wet road. B. Slow to the safe speed before entering, then accelerate slightly through the curve. Before you can supply air to the air tanks of a second trailer you need to. trailer
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A. always keep your vehicle to the right side of your lane 12, 3. C B. johnson bar you should keep atleast __seconds of space ahead of you. There is more chance for skids and loss of traction. Also available in App Store & Google Play. you can fuck a pornstar craigslist cars and trucks for sale by owner; kd linear actuator kdpt007 what is ait in the army; native american spiritual cleansing prayer simple spectrum coupon code; . Never, 9.
Flashcards - Doubles Triples Test #3 - FreezingBlue They provide the air pressure used to operate trailer brakes.
Doubles/Triples Endorsement Flashcards | Quizlet When driving a truck with more than one trailer, which trailer should be first behind the truck? 0000010285 00000 n
Air escape from the open valve B The service brakes slowly move to the fully applied position C The emergency line valve open and release air D None of the above 4. It depends on the load A New! What happens when there is a major leak in the emergency air line? B A. Ship to Store. Refers to pulling two trailers at the same time, otherwise known as "pups" or "pup trailers" because they're only about 28 feet long. Doubles and triples take up more space than other commercial vehicles. A. you can steer more quickly and safely if you hold the wheel with one hand Tractor-trailers are considered combination vehicles. On double and triple combinations, you must make sure that which of these is secure? If you are driving a 200-foot triple at 35 mph, what is the minimum amount of space (in seconds) that you should keep ahead of you? Calculate the voltage gain of each. The driver will be required to complete this requirement in three eight hour shifts. Doubles and triples must be driven very smoothly to avoid rollover or jackknife. The heavier trailer should be in the rear. paramount to safe driving. "Glad hands" are coupling devices used to connect the service and emergency air lines from the truck or tractor to the trailer. C. foot pedal, Which of these statements about managing space to the sides is true? Make sure pintle hook is latched. That there is no space between upper and lower fifth wheel. which of these is not a good thing to do when driving on slippery roads? Do converter dollies have spring brakes? Shut-off valves (also called cut-out cocks) are used in the service and supply air lines at the back of trailers used to tow other trailers. recouple. When connecting two trailers the converter dolly is connected to the rear trailer first. 0000001354 00000 n
They are not only longer, but also need more space because they cannot be turned or stopped suddenly. The shortest trailer If you leave this page, your progress will be lost. D Therefore, it is very important for safety that you use wheel chocks when you park trailers without spring brakes. 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. [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." Each trailer and converter dolly has one or more air tanks. re-couple, You can if you want to, it does not matter.
A All material on this website is copyrighted. to do this without wheel chocks you should: supply air to the trailer air system with the tractor and then disconnect the emergency line. What is a converter dolly? B. for doubles and triples, the fifth wheel should be all the way towards the tractor 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. A Becoming A Truck Driver is a dream we've all pondered at some point in our lives. B. closed B. slightly raised Which of the following will probably happen if you are driving a double rig and a set of trailer wheels goes into a skid? the fifth wheel, so trailer is raised slightly when dolly is pushed under it. C. if you have traffic on both sides of your vehicle and something is blocking your lane, a move to the right may still be best, To uncouple the rear trailer in a set of doubles, the shut-off valve at the rear of the front trailer should be: Also, this page requires javascript. 2. Converter dollies have spring brakes. If this lamp is illuminated and does not go out, You should keep at least ____ seconds of space ahead of you. How can you test that air flows to all trailers? 3. A dolly should be pulled out from a rear trailer using?