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Which of these statements about emergency steering is true? If you have traffic on both sides of your vehicle and something is blocking your lane, a move to the right is still the best.
The converter dolly air tank valve on coupled double/triple trailers should be: Closed.
To check if the converter dolly is securely coupled to the rear trailer you should: Pull gently against the pin of the second trailer.
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? None.
Which of these is NOT a good thing to do when driving on slippery roads? Use the engine brake or the speed retarder.
When testing the coupling of the double trailer the landing gears of the rear trailer should be: Slightly raised.
You must drive through deep or flowing water. You should not: Keep gentle pressure on the brakes while going through the water and for a short distance after coming out.
When you turn with the tractor/triple trailer combination the wheels that offtrack (cheat) the most are: The wheels of the last trailer.
Before you can supply air to the air tanks of a second trailer you need to: Open the shut-off valves at the rear of the first trailer and close the shut-off valves at the rear of the second trailer.
What is likely to happen if the pintle hook is unlocked with the dolly still unders the second trailer? The dolly tow bar may fly up.
When does the driver manual say you should disable the steering axle brake? Never.
Which of the statements about quick steering movements and doubles/triples are true? Doubles/triples flip flop over from quick steering more easily than many vehicles.
Converter dollies: Often do not have spring brakes.
You want to hook your combination to a second trailer that has no spring brakes. To do this without wheel chocks you should: Supply air to the trailer with the tractor then disconnect the emergency line.
Which of these statements about managing space to the sides is true? You should avoid travelling next to others when possible.
When driving a truck with more than one trailer, which trailer should be first behind the truck? The heaviset.
You are driving at night and you must dim headlights for traffic. Good speed management says you should: Slow down.
Empty truck: May have poor traction due to bouncing and wheel lockup.
Which of these statements about the handling of doubles and triples is true? A sudden movement with thw steering wheel can result in a tipped over rear trailer.
You are doing a walkaround inspectionof a double or triple trailer irg. You should be sure the converter dolly air tank drain vaves are ______and the pintl hook is ______. Closed ; latched.
During normal operation the brakes of the double/triple trailer are controlled by: Foot pedal.
Which of these will result in the best control of curves? Slow to the safe speed before entering, then accelerate slightly through curves.
The best way to stop any skid is to: Restore traction to the tires.
With the hand valve on, you should test the trailer brakes by opening the service line valve at the rear of the trailer. When you do this, you should hear: 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: Use controlled or stab braking.
You are drivinga set of doubles and a set of trailer wheels goes into a skid. Which of these is most likely to occur? You will have a trailer jackknife.
You are driving on a slippery road during the day. What does the draver manual say about how much space you should keep ahead of your truck? Allow much more space than is needed for ideal driving conditions.
If you want to couple a second trailer to your combination vehicle, secure it by using: Thr trailer spring bakes and wheel chocks.
You are driving a 100-foot truck with double trailers at 50mph. The road is dry and visibilty is good. You should keep at least _____seconds space ahead of you? 11
Some large trucks have curved (convex or spot) mirrors. These mirrors: Make things seem smaller and further away than they really are.
How can you be sure you supplied air to a second trailer? Go to the rear of the second trailer and open the emergency line shut-off.
You should check trailer height before connecting a converter dolly to a second or third trailer. The trailer height is right when: 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 100-foot truck with double trailers at 30mph. The road is dry and visibility is good. You should keep at least _______ seconds of space ahead of you? 10
The crack-the-whip effect that troubles trucks with trailers is most likely to cause a tip over where: The rear trailer of the triple.
Created by: Honeynut718
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