CA CDL Permit Test- Tanker with 100%
correct answers
When connecting a converter dolly to a second or third trailer, the trailer height should be: - correct
answer ✔✔Slightly lower than the center of the fifth wheel
(When connecting a converter dolly to a second or third trailer, the trailer height should be correct. It
should be slightly lower than the center of the fifth wheel.)
What should you do if the braking system cannot build up hydraulic pressure? - correct answer
✔✔Downshift
(If your hydraulic braking system will not build up the pressure needed to slow or stop your vehicle,
there are a few possible solutions. Try shifting into a lower gear, pumping the brakes, and/or using the
emergency brake.)
Mirror adjustment can only be checked properly if: - correct answer ✔✔The trailer is straight.
If transporting chlorine, what must be in the vehicle? - correct answer ✔✔A gas mask
(If transporting chlorine in cargo tanks, a driver must have an approved gas mask in their vehicle.)
An indicator that cargo contains hazardous materials is: - correct answer ✔✔The cargo is stored in
cylinder tanks.
How do ice cream trucks become hazardous to other drivers? - correct answer ✔✔Children often run
toward an ice cream truck without looking for other traffic.
(Ice cream trucks can create hazardous conditions for other drivers because they attract children.
Children often do not notice or pay attention to other vehicles on the roadway when running to or from
ice cream trucks.)
, A loss of air pressure in the emergency line will cause: - correct answer ✔✔The tractor protection valve
to close.
(The tractor protection valve keeps air in the trailer's braking system should the trailer break away or
develop a leak. A loss of air pressure in the emergency line will cause the tractor protection valve to
open and the emergency trailer brakes to activate.)
When coupling, after you've connected the air lines to the trailer, you should: - correct answer
✔✔Supply air to the trailer.
After coupling, there should be ____ between the upper and lower fifth wheel. - correct answer ✔✔No
space
(Before a trip, be sure to inspect all couplings. There should be no space between the upper and lower
fifth wheel.)
In a sudden turn, the ____ trailer is the most likely to turn over. - correct answer ✔✔Last
Your engine runs a pump used during the delivery of compressed gas. After delivery, you should turn off
the engine ____ unhooking the hoses - correct answer ✔✔Before
.
When driving under wet conditions, a lack of spray coming from the tires of other vehicles indicates that:
- correct answer ✔✔Ice has formed on the road.
(In wet conditions, a lack of spray coming from the tires of other vehicles indicates that ice has formed
on the road. Be especially cautious when traveling under wet conditions in freezing weather.)
Before a trip, you can make sure air flows to all trailers by: - correct answer ✔✔Listening for air at the
rear shut-off valve.
correct answers
When connecting a converter dolly to a second or third trailer, the trailer height should be: - correct
answer ✔✔Slightly lower than the center of the fifth wheel
(When connecting a converter dolly to a second or third trailer, the trailer height should be correct. It
should be slightly lower than the center of the fifth wheel.)
What should you do if the braking system cannot build up hydraulic pressure? - correct answer
✔✔Downshift
(If your hydraulic braking system will not build up the pressure needed to slow or stop your vehicle,
there are a few possible solutions. Try shifting into a lower gear, pumping the brakes, and/or using the
emergency brake.)
Mirror adjustment can only be checked properly if: - correct answer ✔✔The trailer is straight.
If transporting chlorine, what must be in the vehicle? - correct answer ✔✔A gas mask
(If transporting chlorine in cargo tanks, a driver must have an approved gas mask in their vehicle.)
An indicator that cargo contains hazardous materials is: - correct answer ✔✔The cargo is stored in
cylinder tanks.
How do ice cream trucks become hazardous to other drivers? - correct answer ✔✔Children often run
toward an ice cream truck without looking for other traffic.
(Ice cream trucks can create hazardous conditions for other drivers because they attract children.
Children often do not notice or pay attention to other vehicles on the roadway when running to or from
ice cream trucks.)
, A loss of air pressure in the emergency line will cause: - correct answer ✔✔The tractor protection valve
to close.
(The tractor protection valve keeps air in the trailer's braking system should the trailer break away or
develop a leak. A loss of air pressure in the emergency line will cause the tractor protection valve to
open and the emergency trailer brakes to activate.)
When coupling, after you've connected the air lines to the trailer, you should: - correct answer
✔✔Supply air to the trailer.
After coupling, there should be ____ between the upper and lower fifth wheel. - correct answer ✔✔No
space
(Before a trip, be sure to inspect all couplings. There should be no space between the upper and lower
fifth wheel.)
In a sudden turn, the ____ trailer is the most likely to turn over. - correct answer ✔✔Last
Your engine runs a pump used during the delivery of compressed gas. After delivery, you should turn off
the engine ____ unhooking the hoses - correct answer ✔✔Before
.
When driving under wet conditions, a lack of spray coming from the tires of other vehicles indicates that:
- correct answer ✔✔Ice has formed on the road.
(In wet conditions, a lack of spray coming from the tires of other vehicles indicates that ice has formed
on the road. Be especially cautious when traveling under wet conditions in freezing weather.)
Before a trip, you can make sure air flows to all trailers by: - correct answer ✔✔Listening for air at the
rear shut-off valve.
