CDL Double-Triple
Trailers Test

What do you check when doing a visual inspection of the coupling?

What is most likely to occur when driving a set of doubles and a set of trailer wheels goes into a skid?

Select the true statement in regards to quick steering movements and double trailers:

When driving with multiple trailers, which one should be right behind the tractor?

How do you check the air flow to the last trailer?

Select the action that is not recommended when driving on slipper roads:

The crack-the-whip effect is more likely to cause the front trailer to tip over.

In what position should the converter dolly air tank drain valves and pintle hook be in?

To be sure that air is supplied to the second trailer:

What do you need to do to supply air to the air tranks of the second trailer?

Your rig should be parked on__to uncouple double trailers.

How much space should there be between the lower and upper fifth wheel?

Do converter dollies have spring brakes?

What position should the heaviest trailer be in when pulling 3 trailers?

How do you secure a second trailer to your combination vehicle?

Select the true statement in regards to unhooking the pintle hook while the converter dolly is still under the trailer.

How should the pintle hook be when backing a dolly under the second trailer?

What should you hear when you have the hand valve on and are testing the trailer brakes by opening the service air line at the back of the trailer?

Select the true statement about convex ("spot") mirrors.

Select the true statement about empty trucks:

Select the true statement about converter dollies:

Which trailer is most likely to tip over due to the crack the whip effect?

Remember to_____when steering to avoid a crash while driving doubles.

Select the true statement about seeing ahead.

Select the true statement in regards to managing the space to the sides:

Double and triple trailers should be driven with care to avoid a rollover or jacknife.

The trailer height is correct for connecting a converter dolly to a second or third trailer when:

What method should be used to test that the air is flowing to all the trailers?

Where are shut off valves located on trailers that are doubles or triples?

You can be sure air is supplied to the second trailer by:

The driver's manual advises you to disconnect the steering axle brake to keep the rig straight:

What is the best way to prevent brakes form overheating while drive down a steep grade?

You should look into the back of the fifth wheel on a dolly to see if it is locked onto the kingpin.

What do yo uneed to do before supplying air to the air tanks of the second trailer?

Select the statement that is true in regards to quick steering movements and triple/double trailers:

Select the statement that is true in regards to what is required of a driver with a double or triple trailers:

Select the action that is not appropriate when driving on slippery roads:

Select the statement that is true in regards to managing space to the sides.

The main reason you should pull the dolly out from under a trailer before disconnecting it from the trailer in front is:

Start by___when coupling.