CDL Practice Test Quiz Latest Updated with Complete Solutions

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CDL Practice Test Quiz Latest Updated with Complete Solutions A railroad crossing is ahead of you and you are hauling hazardous material. When you stop for the crossing, you can stop as far away as ... ____ feet from the nearest rail. Correct Answer-50 Who is responsible for safely transporting a hazardous material shipment without delay and keeping the shipping papers in the right place? Correct Answer-the driver You find an overheated tire during an enroute inspection. If you are hauling hazardous materials, you must: Correct Answer-Remove the tire and place it a safe distance from the vehicle. The intent of hazardous materials regulations is to ensure safety, to contain the material, and: Correct Answer-to communicate the risk The total transport index of all radioactive material packages in a single vehicle must not exceed ____. Correct Answer-50 You are going to be hauling hazardous materials over a route you do not know well. When should you check the route and get the permits needed for the trip: Correct Answer-before starting the trip Which three hazard classes should not be loaded into a trailer that has a heater / air conditioner unit. Correct Answer-flammable liquids flammable gas explosives What is the only exception to certification by a shipper? Correct Answer-Correct When the shipper is a private carrier of his own product. A truck carrying explosives has crashed with another vehicle. You should not pull them apart until. Correct Answer-correct The explosives have been placed at least 200 feet away from the vehicles and occupied buildings. When handling packages of explosives, you must: Correct Answer-Correct Never use hooks or other metal tools When driving with more than one trailer, which trailer should be the first one behind the tractor? Correct Answer-correct Answer: The heaviest trailer You are driving a 100 foot twin trailer combination at 50 mph. The road is dry and the visibility is good. You should keep at least ____ seconds of space ahead of you. Correct Answer-Correct Answer: 11 With the hand valve on, you should test the trailer brakes by opening the service line valve at the rear of the rig. When you do this, you should hear: Correct Answer-Correct Answer: Air escape from the open valve You are driving with double trailers and must use your brakes to avoid a crash. For emergency braking you should: Correct Answer-Correct Answer: Use controlled or stab braking Converter dollies: Correct Answer-Correct Answer: Often do not have spring brakes The crack the whip effect that troubles trucks with trailers. Which is most likely to tip over: Correct Answer-Correct Answer: The rear trailer of a triple You are doing a walk around inspection of a double or triple trailer rig. You should be sure the converter dolly air tank drain valves are ____ and the pintle hook is ____. Correct Answer-closed, latched When does the "driver's manual" advise disconnecting the steering axle brakes to help keep the rig straight? Correct Answer-Correct Answer: Never If a converter dolly is still under the second trailer and you unlock the pintle hook, what will probably happen? Correct Answer-Correct Answer: The dolly tow bar may fly up You are driving with double trailers and must use your brakes to avoid a crash. For emergency braking you should: Correct Answer-: Use controlled or stab braking You are visually checking the coupling of a converter dolly to the rear trailer. How much space should be between the upper and lower fifth wheel? Correct Answer-none [Show More]

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