CDL PRACTICE TEST (AZ) - GENERAL KNOWLEDGE TEST

21. Tire load is defined as:
the maximum safe weight a tire can carry at a specified pressure.
the minimum safe weight a tire can carry at a specified pressure.
the weight transmitted to the ground by 1 tire.
22. When going down long, steep downgrades, you should:
downshifting and then use the brakes.
try not to use the brakes.
only use the brakes.
23. When driving past parked vehicles, you should:
turn on your taillights.
sound your horn.
watch for clues that the parked vehicle is about to move.
24. If ABS is not working:
you should stay off the brake.
the brakes will lock up.
a yellow malfunction lamp will light up on the control panel.
25. Vehicles must be equipped with emergency equipment, including:
spare electrical fuses.
horn.
2 battery-operated flashlights.
26. If the low air pressure warning light comes on, you should:
stop immediately.
continue to drive normally.
call for help.
27. You are driving a 30-foot vehicle at 35 mph. You should allow at least ______ of following distance between your vehicle and the vehicle in front of you.
3 seconds
2 seconds
4 seconds
28. In coming down a long, steep downgrade, which of the following is NOT a factor you should consider to select an appropriate safe speed?
Steepness of the grade
Road conditions
Your schedule
29. When inspecting mirrors and windshields for dirt, cracks, illegal stickers, and other obstructions to seeing clearly, you should:
write all necessary adjustments in your pre-trip inspection.
leave it as is and write any instructions or notes on the vehicle inspection guide.
clean and adjust as necessary.
30. In which of the following situations should you check your mirrors more often?
When driving on a single lane road.
When changing lanes or merging.
When driving on a narrow road.
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