Trailer types and configurations
What is the best way to describe a Semi-Trailer?
What is a trailer partially supported by another vehicle.
How are kingpins typically attached to the trailer?
What is welded to the upper coupler.
What are landing gears?
Retractable legs attached to the front of a semi trailer when not resting on a 5th wheel.
What is the industry standard fifth-wheel height?
What is 48 inches.
What type of trailer would be used to haul an Excavator?
What is a Lowboy/bed.
What is the Evaporator.
What grade of fasteners is required for all 5th wheels and hitching devices?
What is Grade 8.
What are two of the commonly used fifth-wheel plate in North America?
What is a Holland, Fontaine and Jost
What type of trailer would be used to haul processed lumber from a mill?
What is a Flatdeck/bed.
What should you do if you notice excessive movement between the kingpin and the fifth wheel?
What is do a proper adjustment.
What lubricant should be used to grease a 5th wheel.
Water resistant lithium based grease.
How many speeds does a typical landing gear have?
What is two.
What trailer combination has a second 5th wheel attached to the lead trailer?
What is a B train.
What fuel is used in a supplemental fuel heater.
What is diesel fuel.
Which fifth wheel is designed to articulate on two planes, transverse and longitudinal?
What is compensating.
What is a detachable front-axle assembly called?
What type of logging trailer can be used for long logs or short logs?
What is a hayrack.
What refrigerant is used in most commonly in Reefer units?
What is R-22
What causes a high hitch position?
The kingpin sitting on top of the locks with the locks fully engaged.
What is required in a "B-train" assembly?
What is a converter Dolly.
What combination type has a converter dolly with a drawbar connecting to the lead trailer?
What is an A train.
What is the maximum allowable wear on a pintle hook?
What is 4.8mm or 3/16ths of an inch
What is the minimum size AWG wiring that should be used on a trailer light circuit.
What is 18 guage.
Where is a jeep used?
Between a tractor and a trailer.
What is the most stable trailer configuration?
What is a B train.
How much oil do you add when you replace a component in the AC system?
Add 2oz per component replaced.
What is the maximum weight on a Ball Hitch?
What is 12 000lbs or 5455kg.
What type of hitching device has a no slack fit?
What is a Ball Hitch.
What type of fifth wheel would you use to prevent damage to a liquid tanker trailer?
What is a semi oscillating fifth wheel.
What is the maximum load on a singe axle a class 8 truck is allowed to carry?
What is 20000lbs or 9072kg.
Define Draw Bar Capacity, also known as "D" Capacity.
The maximum horizontal pulling force that can be applied to a 5th wheel.
How much weight must the safety chains/cables be able to hold to remain in service?
What is at least the weight of the primary coupling device.