CDL PRACTICE EXAM QUESTIONS AND ANSWERS.
engine - CORRECT ANSWER the lubrication system lubricates, and cleans the:
drive train - CORRECT ANSWER the_______ is a series of connected mechanical parts which take the power generated by the engine and applies it to the tractor's drive wheels.
...
engine - CORRECT ANSWER the lubrication system lubricates, and cleans the:
drive train - CORRECT ANSWER the_______ is a series of connected mechanical parts which take the
power generated by the engine and applies it to the tractor's drive wheels.
slow down or stop - CORRECT ANSWER a defect in the braking system can interfere with a vehicle's
ability to:
coupling system - CORRECT ANSWER this system is what connects the tractor and trailer
broken spring hangers, damaged torque rods, damaged u-bolts. - CORRECT ANSWER when looking over
the suspension system, you need to check for cracked, loose. or:
engine & turbocharger - CORRECT ANSWER if your exhaust temperature is to high, what can get
damaged?
check the 5th wheel for cracks, breaks, security, grease. check the kingpin for excessive cracks, bending,
wear. - CORRECT ANSWER when checking the coupling system, you need to:
securing the suspension system at points spread throughout the frame. - CORRECT ANSWER the
suspension system allows the axles to move up and down in response to ground changes without
seriously affecting the load, _______ allows the stress of the road shocks to be distributed evenly
throughout the frame.
pay attention to your senses; sight, sound, smell, feel of the vehicle can indicate a potential problem.
report vehicle defects & deficiencies that you cannot fix, to your company. - CORRECT ANSWER to keep
vehicle systems in good operating conditions:
, filter - CORRECT ANSWER as part of an oil change, the condition of the _______ should be assessed. this
item can help prolong the life of the engine by removing contaminants as oil passes through.
conduct a thorough pre-trip inspection. - CORRECT ANSWER in order to put a commercial motor vehicle
on the road, you must first:
verify the parking brakes have been set. - CORRECT ANSWER before you inspect the engine
compartment and front axle components:
4/32 inch - CORRECT ANSWER what is the minimum tread depth for the steer-tire?
the break shoes have at least a quarter- inch lining. - CORRECT ANSWER when inspecting the brake
assembly, you should ensure:
whenever a change of duty status is made, every three hours, or 150 miles, whichever comes first. -
CORRECT ANSWER after the initial 50-mile check, how often must you conduct additional on the road
inspections of the cargo securement & securement deviices?
if you load is sealed and you have been ordered not to open it. if you vehicle is loaded in a way that
makes cargo inspection impossible - CORRECT ANSWER what is the only circumstance you are not
required to inspect you cargo and load securing devices?
at the end of every workday - CORRECT ANSWER when is it appropriate to conduct a post trip
inspection?
the same items as the pre-trip inspection except for things affected by heat. - CORRECT ANSWER what
item should post- trip inspection include?
whenever a defect or deficiency is discovered or reported - CORRECT ANSWER when do the regulations
require drivers of property-carrying CMV's to complete and sign a DVIR?
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