CDL Practice Tests For Weight Distribution Page 1

Weight Distribution Practice Questions

Click On The Picture To Begin

Good Luck!

What are the four basic weight limits?
  • single tire, bridge formula, tri-axle, gross vehicle
  • double spacing, single axle, bridge forumula, overweight
  • single axle, tandem axle, bridge formula, and gross vehicle
  • single axle, tandem axle, single tire, eight tire
Click here to look up the answer

From The CDL Manual

There are four basic weight limits: single axle, tandem axle, bridge formula, and gross vehicle.
Next
What is the Federal standard for the weight limit on a single axle?
  • 20,000 pounds
  • 22,000 pounds
  • 15,000 pounds
  • 12,000 pounds
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From The CDL Manual

  • 20,000 pounds single axle weight
  • 34,000 pounds tandem axle weight
  • 80,000 pounds gross vehicle weight
  • Bridge Formula Calculations
Prev
Next
What is the Federal Standard for maximum weight on a tandem axle vehicle?
  • 34,000 pounds
  • 27,000 pounds
  • 37,000 pounds
  • 30,000 pounds
Click here to look up the answer

From The CDL Manual

  • 20,000 pounds single axle weight
  • 34,000 pounds tandem axle weight
  • 80,000 pounds gross vehicle weight
  • Bridge Formula Calculations
Prev
Next
What are the Federal standards for the gross vehicle weight of a 5 axle commercial vehicle?
  • 60,000 pounds
  • 22,000 pounds
  • 80,000 pounds
  • 65,000 pounds
Click here to look up the answer

From The CDL Manual

  • 20,000 pounds single axle weight
  • 34,000 pounds tandem axle weight
  • 80,000 pounds gross vehicle weight
  • Bridge Formula Calculations
Prev
Next
What can be the result of too much weight on the back of the trailer?
  • A "pendulum effect" causing the rear of the trailer to sway back and forth while driving down the highway or jackknife going around a curve
  • The steering will feel "heavy" and sluggish
  • You won't be able to fuel up properly without being overweight
  • The steer tires won't grip properly
Click here to look up the answer

From The CDL Manual

Too much weight toward the back of the trailer can lead to a "pendulum effect", causing the rear of the trailer to sway back and forth while driving down the highway or jackknife going around a curve

TruckingTruth's Advice:

Balancing the weight of your truck properly across the axles is a legal requirement because there are so many safety factors involved.
Prev
Next
In the following picture, what are axles 2 and 3 commonly referred to as?
  • "drives" or "drive axles"
  • "drives" or "trailer drives"
  • "tandems" or "front trailer tandems"
  • "duals" or "tractor set"
Click here to look up the answer

From The CDL Manual

#2 and #3 together are your tractor drive tandem axles (commonly referred to as "drives" or "drive axles")

TruckingTruth's Advice:

You'll normally hear drivers refer to these two axles as your "drives". They'll say, "The other day I scaled out and my 'drives' were over by 800 pounds".
Prev
Next
In the following picture, what are axles 4 and 5 commonly referred to as?
  • "tandems" or "trailer tandems"
  • "trailer drives" or "back tandems"
  • "trailer set" or "back tandems"
  • "back set" or "rear tandems"
Click here to look up the answer

From The CDL Manual

#4 and #5 together are your trailer tandem axles (commonly referred to as "tandems" or "trailer tandems")

TruckingTruth's Advice:

You'll generally hear drivers refer to these axles as simply "tandems". They'll say "The load I had yesterday was loaded incorrectly and I was overweight on my 'tandems' ".
Prev
Next
Which of the following techniques will not change the weight distribution across your axles?
  • Sliding your trailer tandems forward or backward
  • Changing the weight distribution of the cargo along the length of the trailer
  • Adding or burning off fuel
  • Raising the center of gravity height of the load
Click here to look up the answer

From The CDL Manual

There are several ways to distribute or redistributing the overall weight of the vehicle across the different sets of axles. You will affect weight distribution by:

  • Changing the weight distribution of the cargo along the length of the trailer, or moving the cargo around after the truck has been loaded. This will distribute the weight mainly between your drive axles and trailer tandems
  • Sliding your trailer tandems forward or backward will redistribute the weight mainly between your drive axles and trailer tandems
  • Sliding your 5th wheel will redistribute the weight mainly between your steer axle and your drive axles
  • Adding or burning off fuel will mainly change the amount of weight on your steer axle and somewhat on your drive axles also, depending upon the placement of your fuel tanks.

TruckingTruth's Advice:

If you move the center of gravity either toward the front or rear of the trailer, it will change the weight distribution across the axles. But raising or lowering the center of gravity of the load will not change its weight distribution across the axles.
Prev
Next
Sliding your trailer tandems forward or backward will redistribute the weight mainly between which two sets of axles?
  • Drive axles and trailer tandems
  • Steer axle and drive axles
  • None of these answers are correct
  • Steer axle and trailer tandems
Click here to look up the answer

From The CDL Manual

Sliding your trailer tandems forward or backward will redistribute the weight mainly between your drive axles and trailer tandems

TruckingTruth's Advice:

You may find a slight change in the weight of your steer axle after sliding your tandems, but it won't be very much and it's rarely much of a concern.
Prev
Next
Sliding your 5th wheel will redistribute the weight mainly between which two sets of axles?
  • Steer axle and trailer tandems
  • Trailer tandems and rear axles
  • Steer axle and drive axles
  • Drive axles and trailer tandems
Click here to look up the answer

From The CDL Manual

Sliding your 5th wheel will redistribute the weight mainly between your steer axle and your drive axles

TruckingTruth's Advice:

Sliding the 5th wheel will generally have little or no effect on the weight of your trailer tandems
Prev
Finish
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