Combination Test 3

ALL QUIZZES
Traffic Control Intersections and Turns Passing Parallel Parking Alcohol and Other Drugs Special Driving Conditions Sharing the Road Road Signs You Must Know Knowledge Test 1 Knowledge Test 2 Knowledge Test 3 Knowledge Test 4 Knowledge Test 5 Knowledge Test 6 Knowledge Test 7 Knowledge Test 8 Knowledge Test 9 Knowledge Test 10 Knowledge Test 11 Knowledge Test 12 Air Brakes Test 1 Air Brakes Test 2 Air Brakes Test 3 Air Brakes Test 4 Air Brakes Test 5 Air Brakes Test 6 Haz Mat Test 1 Haz Mat Test 2 Haz Mat Test 3 Haz Mat Test 4 Haz Mat Test 5 Haz Mat Test 6 Haz Mat Test 7 Passenger Test 1 Passenger Test 2 Passenger Test 3 Passenger Test 4 Passenger Test 5 Passenger Test 6 Tanker Test 1 Tanker Test 2 Tanker Test 3 Tanker Test 4 Tanker Test 5 Doub/Trips Test 1 Doub/Trips Test 2 Doub/Trips Test 3 Combination Test 1 Combination Test 2 Combination Test 3 Car Quiz 1 Car Quiz 2 Car Quiz 3 Car Quiz 4 Car Quiz 5 Car Quiz 6 Car Quiz 7 Car Quiz 8 Car Quiz 9 Car Quiz 10 Car Quiz 11 Car Quiz 12
Q1

You are coupling a tractor to a semi trailer and have backed up but are not under it. What should you hook up before backing under?

Q2

You have coupled with a semi trailer. In what position should you put the front trailer supports before driving away?

Q3

Air lines on a combination vehicle are often colored to keep them from getting mixed up. The emergency line is ____; the service line is ____.

Q4

Which of these statements is true?

Q5

You are coupling a tractor and semi trailer and have connected the air lines. Before backing under the trailer, you should:

Q6

The hand valve should be used:

Q7

The air leakage rate for a combination vehicle (engine off, brakes off) should be no more than ____ psi per minute.

Q8

The fifth wheel locking lever is not locked after the jaws close around the kingpin. This means that:

Q9

You are driving a combination vehicle when the trailer breaks away, pulling apart both air lines. You would expect the trailer brakes to come on and:

Q10

Semi trailers made before 1975 that are equipped with air brakes: