DOT Weight and Size Limit Regulations

Question 1

What is the maximum gross vehicle weight (GVW) allowed on the Interstate highway system without a special permit?

Accepted Answer

80,000 lbs

Answer

73,280 lbs

Answer

85,000 lbs

Answer

90,000 lbs

Question 2

What is the federal maximum single axle weight limit on Interstate highways?

Accepted Answer

20,000 lbs

Answer

18,000 lbs

Answer

19,500 lbs

Answer

22,000 lbs

Question 3

What is the federal maximum tandem axle weight limit on the Interstate highway system?

Accepted Answer

34,000 lbs

Answer

32,000 lbs

Answer

33,000 lbs

Answer

36,000 lbs

Question 4

What is the maximum vehicle width permitted on federal-aid highways under federal regulations?

Accepted Answer

102 inches

Answer

96 inches

Answer

100 inches

Answer

108 inches

Question 5

Bridge Formula B is primarily used by DOT inspectors to:

Accepted Answer

Calculate maximum allowable axle-group weight based on axle spacing

Answer

Determine speed limits on bridges

Answer

Measure minimum bridge clearance heights

Answer

Rate bridge structural load capacity

Question 6

A commercial vehicle weighing 80,001 lbs GVW on the Interstate requires which of the following before it may legally operate?

Accepted Answer

A special oversize/overweight permit

Answer

A FMCSA safety rating waiver

Answer

A USDOT number upgrade

Answer

A revised bill of lading only

Question 7

Which federal agency has primary authority over size and weight regulations on federal-aid highways?

Accepted Answer

FHWA

Answer

FMCSA

Answer

NHTSA

Answer

TSA