CDL Doubles and Triples Practice Test Results

Question 1
86% answer correctly
During your pre-trip inspection of your double rig you inspect the converter dolly. Its air tank drain valves should be __________ and the pintle hook should be __________.
Closed, free
Open, latched
Closed, latched
Open, free
Question 2
41% answer correctly
How can you check to make sure that trailer height is correct before coupling?
Use both side view mirrors
All of these are correct
Use a landmark like a nearby tree
Raise the landing gear completely
Question 3
65% answer correctly
When making a lane change, check your mirrors:
When starting the lane change
All of these are correct
After completing the lane change
Before signaling the lane change