FREE NY CDL Doubles Triples Practice Test (2024)

1. A trailer jackknife is more likely to happen when the trailer is:

2. If your ABS malfunctions:

the parking brakes will not work.
you still have normal brake functions.
the service brake will not work.
you should immediately come to a complete stop.

3. You should be especially alert for drunk drivers:

4. Doubles:

are less likely to rollover than straight trucks.
are easier to drive than straight trucks.
require more reaction time than straight trucks.
None of the above.

5. If you must stop on a one-way or divided highway, place your warning devices:

10 feet, 100 feet, and 200 feet toward the approaching traffic.
10 feet, 50 feet, and 150 feet toward the approaching traffic.
100 feet, 200 feet, and 300 feet toward the approaching traffic.
50 feet, 100 feet, and 150 feet toward the approaching traffic.

6. Exhaust system parts should NOT:

rub against tires.
rub against fuel system parts.
be loose.
All of the above.

7. Emergency brakes must be held on by:

8. What should you do if you doubt you have safe space to pass under a low bridge?

Assume that the height posted at the bridges is correct.
If no warnings are posted, assume there is enough clearance under the bridge and proceed slowly.
Increase the weight of your vehicle to clearing under the bridge.
Go slowly, and take another route if you are not sure you can make it.

9. In a dual air brake system, if one air system is very low on pressure:

either the front or rear brakes will not be operating fully.
the effect won't be noticeable for the first 50 miles.
you should pump the brakes to restore pressure.
you should drive and brake as you always have.

10. If the fifth-wheel locking lever is not locked after the jaws close around the kingpin:

the parking brakes are on and the wheels are chocked.
the parking brakes are on and your vehicle is safe to drive.
cargo is properly blocked.
the coupling is not right and you should not drive until you get it fixed.

NEW YORK DOUBLES TRIPLES PRACTICE CDL TEST