HAZMAT CDL PRACTICE TEST - COLORADO
11.
You should flash your brake lights to warn drivers behind you when:
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you see a hazard that will require slowing down.
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you see you'll need to slow down.
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you see a bus stops in the roadway ahead to unload passengers.
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All of the above.
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12.
If hazardous materials are spilling from your vehicle while you are driving, after parking the vehicle do NOT:
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stay there.
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try to find the source of the leak by smell.
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send someone else for help.
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secure the area.
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13.
When crossing railroad tracks, you should:
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shift gears while crossing the tracks.
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apply the parking brakes.
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stay in your lane.
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stop on the tracks.
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14.
HAZMAT placards are:
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speed signs
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regulatory signs
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optional signs
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warning signs
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15.
Hazardous materials include all of the following except:
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Explosives
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Livestock
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Oxidizers
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Corrosives
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16.
Placards are:
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signs put inside a vehicle used to warn others of hazardous materials.
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devices placed below a vehicle to improve traction.
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a type of safety equipment.
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signs placed on a vehicle to identify the hazard class of the cargo.
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17.
Passive railroad crossings:
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usually have a person directing traffic.
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should never be crossed using a CMV.
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do not have traffic control devices.
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have at least one traffic control device.
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18.
With low beams, drivers can see ahead about:
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250 feet
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100 feet
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150 feet
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15 feet
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19.
Most heavy vehicles require ________ change gears.
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triple shifting
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single clutching
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double shifting
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double clutching
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20.
When driving at night you should dim your lights when following another vehicle within:
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100 feet.
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500 feet.
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50 feet.
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1 mile.
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