6 Flashcards
Term “comercial motor vehicle” means…
Self propelled or towed vehicle with a gross weight under 48000 pounds.
Beam Indicator
1948
Air drum brakes shoe linings
No less than 1/4 inch
Hydraulic disc shoe linings
1/16 or less a the shoe center
Electric drum brakes linings
Less than 1/8 for air disc brakes
Check for Low air pressure warning device after
March 1, 1975
Low pressure warning device should operate at
55 psi and below
Reject if air reservoir pressure drop of more that 3 psi in 1 min for a single vehicle
True
Master cylinder reject if less than 1/4 full
True
Clearance lamps are required on all…
Busses, trucks, trailers and semitrailers 80 inch or more overall
Clearance lamps in the front or sides shall display
Amber
Clearance lamps on the rear shall display…
Red
Clearance lamps shall be visible under normal conditions at a distance of…
500 feet from the vehicle on which is mounted
On buses trucks trailers and semitrailers 80 inch or more in overall width
2 clearance lamps in front and 2 in rear
Lower coupler fifth wheel reject if
Horizontal movement between the upper and lower halves exceeds 1/2 inch
Check for exhaust emissions system beginning the year…
1968
Check for catalytic converters from the year
1984
Horn should be able to emit a sound audible for a distance of 200 feet or more
True
How many identification lamps should a bus, truck or truck-tractor has
3
What color should identification lamps be?
Amber
How many identification lights should be on the rear
3 Red
Mirrors shall reflect the driver a view of 200 ft to rear
True
Check for reflective tape from the December 1 1993
Trailers and semitrailers (80 inch wide and 10,001 pounds)
Reflector tape should be visible at least?
100-600 feet
Reflector an comercial vehicles should be mounted at a height of not…
Less than 15 or higher than 60 inch above the ground
Steering lash on 16” manual/power steering wheel
2 inch - 4.5 inch
Streaming lash on 18” manual/power Steering wheel
2 1/4 inch 4 3/4
Check for stop lamps from the year
1960
Stop lamps shall be visible from a distance not Less than…
300 ft to rear in normal sunlight
Number of stop lamps required for comercial vehicle
2 stop lights
Every motor vehicle trailer semitrailer shall be equipped with at least 2 tail lamps
True
Tail lamps shall display a red light from a distance of
1000 feet to rear
Tire steering axle with less than 4/32 inch tread will pass inspection?
No
Turn signal shall be visible from
Not less tha 500 ft to the front and rear
Reject for any crack in windshield over
1/4 inch wide or larger than 3/4 inch diameter
Rubber on wipers is torn more than 1 inch
Fail
