General Knowledge
Low slung units, single-axle tractors pulling a long trailer.
WHAT TYPE OF VEHICLES CAN GET STUCK ON A RAILROAD-HIGHWAY CROSSING?
Often do not have spring brakes
WHAT IS A TRAILER MADE BEFORE 1975 THAT IS EQUIPPED WITH AIR BRAKES?
A coupling device that allows formation of a double bottom rig.
WHAT IS A CONVERTER DOLLY?
This material is only restricted when shipped by air and/or water
AN “A/W” IN THE FIRST COLUMN OF THE HAZARDOUS MATERIALS TABLE MEANS?
Leaking
WHAT SHOULD WHEEL BEARING SEALS BE CHECKED FOR?
THE AIR LEAKAGE RATE FOR A COMBINATION VEHICLE (ENGINE OFF, BRAKES OFF) SHOULD BE NO MORE THAN ____ PSI PER MINUTE.
What is 3?
The back Trailer.
IN A SET OF DOUBLE TRAILERS THE BACK TRAILER IS MOST LIKELY TO TURN OVER DUE TO THE CRACK-THE-WHIP EFFECT
A bulk container permanently attached to the vehicle
WHICH OF THE FOLLOWING IS THE PROPER DEFINITION OF A CARGO TANK?
4/32 of an inch.
WHAT IS THE MINIMUM LEGAL TREAD DEPTH FOR A FRONT TIRE ON A COMMERCIAL VEHICLE?
WHAT ARE THE THREE RULES FOR USING YOUR TURN SIGNALS?
Open shut-off valves on both air lines at the rear of the last trailer
HOW CAN YOU TEST THAT AIR FLOWS TO ALL TRAILERS?
Opening the air tank petcock.
WHEN COUPLING TWIN TRAILERS, YOU SHOULD RELEASE THE DOLLY BRAKES BY?
When loading or unloading a tank with flammable liquids. Ground must be maintained until after closing the filling hole
WHEN IS IT NECESSARY TO GROUND THE TRAILER?
The distance traveled from the time your brain tells your foot to move from the accelerator to actually pushing on the brake pedal.
REACTION TIME OR DISTANCE IS?
Twice the speed = four times the stopping distance
WHAT IS DOUBLING YOUR SPEED HAS WHAT EFFECT ON BRAKING DISTANCE?
The shank
WHAT PART OF THE KINGPIN SHOULD THE LOCKING JAWS CLOSE AROUND?
The heaviest trailer.
WHEN DRIVING WITH MORE THAN ONE TRAILER, WHICH TRAILER SHOULD BE THE FIRST ONE BEHIND THE TRACTOR?
The power unit of placarded vehicles must has a fire extinguisher with a UL rating of 10 B:C or more
WHAT TYPE OF FIRE EXTINGUISHER MUST PLACARDED VEHICLES CARRY?
First Aid Kit.
WHICH OF THE FOLLOWING EMERGENCY ITEMS ARE YOU NOT REQUIRED TO HAVE AVAILABLE?
1. Only move them if they are in danger from fire or traffic. 2. Apply direct pressure to any wounds. 3. Keep the injured person warm.
WHAT IS WHEN CARING FOR AN INJURED PERSON?
Because of the danger of making the trailer skid.
WHY SHOULD YOU NOT USE THE TRAILER HAND VALVE WHILE DRIVING?
The dolly will have a yellow lamp on the left side.
HOW DO YOU KNOW IF YOUR CONVERTER DOLLY IS EQUIPPED WITH ANTILOCK BRAKES?
A guidebook for firefighters, police, and industry workers on how to protect themselves and the public from hazardous materials
WHAT IS THE EMERGENCY RESPONSE GUIDE (ERG)?
They help you avoid wheel lock up and maintain control while braking
HOW DO ANTILOCK BRAKES HELP YOU?