CDL Combination Test (100% solved)

If you cross connect the two air lines the following will result correct answers You will not have air going to the trailer brakes You have coupled with a semi-trailer. In what position should you put the front trailer supports before driving away? correct answers Fully raised with the crank handle secured in its bracket Th trailer air supply control: correct answers Is a red, eight sided knob A device which connects the service and emergency air lines from the truck to the trailer is called.. correct answers Glad hands If one of the glad hands on your blue air line is missing a seal: correct answers You might end up with a service line air leak In order to supply air to the trailer, you must first: correct answers Stop engine so you can hear the brakes The hand valve should be used: correct answers To test the trailer brakes The air leakage rate for a combination vehicle (engine off, brakes on) should not be more than _______ psi per minute correct answers 4 When should you use the hand valve to park a combination vehicle? correct answers Never When you get ready to back under the semi-trailer you should line up correct answers Directly in front of the trailer If the service air line comes apart while you are driving a combination vehicle but the emergency line stays together, what will happen right away correct answers Nothing is likely to happen until you try to apply the brakes When uncoupling, if you park the trailer at an angle... correct answers You could do damage to the landing gear Which of these statements is true? correct answers "Bobtail" tractors can take longer to stop than a combination vehicle loaded to the maximum gross weight