cdl practice test 100% correct solved

cdl practice test 100% correct solved 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 Answer️️ -50 Who is responsible for safely transporting a hazardous material shipment without delay and keeping the shipping papers in the right place? - Correct Answer️️ -the driver You find an overheated tire during an enroute inspection. If you are hauling hazardous materials, you must: - Correct Answer️️ -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 Answer️️ -to communicate the risk The total transport index of all radioactive material packages in a single vehicle must not exceed ____. - Correct Answer️️ -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 Answer️️ -before starting the trip Which three hazard classes should not be loaded into a trailer that has a heater / air conditioner unit. - Correct Answer️️ -flammable liquids flammable gas explosives What is the only exception to certification by a shipper? - Correct Answer️️ -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 Answer️️ -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 Answer️️ -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 Answer️️ -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 Answer️️ -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 Answer️️ - 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 Answer️️ -Correct Answer: Use controlled or stab braking Converter dollies: - Correct Answer️️ -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 Answer️️ -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 Answer️️ -closed, latched When does the "driver's manual" advise disconnecting the steering axle brakes to help keep the rig straight? - Correct Answer️️ -Correct Answer: Never If a converter dolly is still under the second trailer and you unlock the pintle hook, what will probably happen? - Correct Answer️️ -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 Answer️️ -: 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 Answer️️ -none When should you check your mirrors while making a lane change? - Correct Answer️️ -...a. After signaling the change b. Right after starting the lane change after completing lane change Which of these statements about managing space to the sides is true? - Correct Answer️️ -...Correct Answer: You should avoid traveling next to others when possible Which of these statements about handling of doubles and triples is true? - Correct Answer️️ -...Correct Answer: A sudden movement with the steering wheel can result in a tipped over rear trailer How can you be sure you supplied air to a second trailer? - Correct Answer️️ - ...Correct Answer: Go to the rear of the second trailer and open the emergency line shut off You should check the height of the trailer before connecting a converter dolly to a second or third trailer. The trailer height is right when: - Correct Answer️️ -...a. The trailer will be raised slightly when the converter dolly is backed under it. You want to hook your combination to a second trailer that has no spr