CDL Class B Study Guide Test.
Why might your brakes start to fade going downhill? - CORRECT ANSWER Because they are overheating
Who is responsible for making sure all lights and mirrors are clean? - CORRECT ANSWER The vehicle driver
When is it safe to remove the radiator cap? - CORRECT A...
Why might your brakes start to fade going downhill? - CORRECT ANSWER Because they are overheating
Who is responsible for making sure all lights and mirrors are clean? - CORRECT ANSWER The vehicle
driver
When is it safe to remove the radiator cap? - CORRECT ANSWER When the cap is cool enough to touch
with a bare hand
When backing up, which side should you back towards? - CORRECT ANSWER The left-hand side
How many tiedowns should a cargo be held with? - CORRECT ANSWER At least one for every 10 feet of
cargo
What's the most important reason for making sure that you signal well before you make a turn? -
CORRECT ANSWER To dissuade other vehicles from trying to pass you
If you smell exhaust fumes in the cab, what should you do? - CORRECT ANSWER Stop immediately
When beginning a long downgrade, which of these is the only thing which should NOT be a factor in
choosing your speed? - CORRECT ANSWER How far you are ahead or behind your schedule
Which of these substances can impair your ability to drive safely? - CORRECT ANSWER Some cold
medicines
Where can you find the maximum weight loading for pressure for a tire? - CORRECT ANSWER Printed on
the tire
, Why do vehicles hauling hazardous materials need warning labels? - CORRECT ANSWER So emergency
services know what they are dealing with in an accident
Which of these conditions are the ones when you should downshift in advance? - CORRECT ANSWER
Before entering a curve and entering a downgrade
How often should you check your gauges (air pressure, temperature ect.)? - CORRECT ANSWER As often
as practicable
What should you do when caring for a conscious accident victim? - CORRECT ANSWER Keep them warm
What's the most important tool you have to monitor the condition of your vehicle when underway? -
CORRECT ANSWER Your eyesight, your hearing and sense of smell
What is the minimum tread depth for tires that are not front tires? - CORRECT ANSWER 2/32 of an inch
Approaching on and off ramps, you should remember... - CORRECT ANSWER That posted maximum
speed may not be suitable for your vehicle
When pulling away in snow or icy conditions, what technique should you employ? - CORRECT ANSWER
Very gradual, slow acceleration
If you experience a fire whilst your vehicle is moving, where is the only place you should pull over? -
CORRECT ANSWER An open area
Which of these is NOT a situation where you should use your low beam headlights? - CORRECT ANSWER
Driving through tree shadows
Which of these is the only thing which should NOT cause you concern when checking your tires? -
CORRECT ANSWER Tires from different manufactures
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