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17 Cards in this Set
- Front
- Back
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3 factors that determine stopping distance
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perception distance - 3/4 sec 60 feet at 55mph
reaction distance 3/4 sec 60 feet at 55mph braking distance |
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cone placement on two land road with traffic in both directions or undivided highway
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place warning devices within ten feet of the front or rear corners to mark the location of the vehicle and 100 feet behind and ahead of the vehicle, on the shoulder or in the lane in which you stopped.
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Cone placement on a hill
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Back beyond any hill, curve, or other obstruction that prevents other drivers from seeing the vehicle within 500 feet.
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cone placement on one way or divided highway
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place warning devices 10 feet, 100 feet, and 200 feet toward the approaching traffic
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examples of slippery roads
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shaded areas, bridges, black ice, melting ice
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When does low pressure warning device activate for braking system?
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between 55 to 75 psi or one half the compressor governor cut-out pressure on older vehicles. The warning is usually a red light. A buzzer may also come on
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static leak test
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– 2 psi for single vehicles.
– 3 psi for a combination of two vehicles. – 5 psi for a combination of three or more vehicles. |
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applied leakage test
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After the system settles again, time for one minute. The air pressure should not drop more than:
– 3 psi for single vehicles. – 4 psi for a combination of two vehicles. – 6 psi for a combination of three or more vehicles. |
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Air Compressor Governor Cut-Out Pressure Test
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The air compressor governor must cut-out prior to the needle reaching 130 psi. Where the needle stops rising is the governor cut-out pressure.
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Air Compressor Governor Cut-In Pressure Test
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Watch the air pressure gauge between pumps to identify when the compressor cuts in (needle starts to rise). This should occur no lower than 85 psi.
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Check that the spring brakes come on automatically
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Chock the wheels. Release all parking brakes and shut the engine off. Pump the brake pedal to reduce the air tank pressure. The trailer air supply valve knob should pop out when the air pressure falls to the manufacturer’s specifications (usually in a range between 20 to 45 psi)
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Rate of air buildup
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the pressure should build from 85 to 100 psi within 45 seconds in dual air systems.
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test service brake
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apply the brakes firmly using the brake pedal. Any pulling to one side, unusual feel, or delayed stopping action should be checked.
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test parking brake
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apply during a slow roll
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DMV violation point counts?
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Major violations and disqualification actions,
55 years • Out-of-service violations and disqualification actions, 15 years • Collisions, serious violations and disqualification actions, 10 years • Railroad grade crossings and disqualification actions, 4 years • Minor convictions, 3 years |
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DMV you are considered a negligent operator if you have the following points per period:
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4 points in 12 months
6 points in 24 months 8 points in 36 months |
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You must notify your employer within ___
days of all traffic violations (except parking). |
30 days. This is true no matter what type of vehicle
you were driving. |
