CST Vehicle Scale Systems & Applications

Question 1

What is the federal maximum gross vehicle weight (GVW) limit for vehicles operating on U.S. interstate highways?

Accepted Answer

80,000 lbs

Answer

60,000 lbs

Answer

70,000 lbs

Answer

90,000 lbs

Question 2

What type of foundation is most commonly required for a properly installed pit-mounted truck scale?

Accepted Answer

Reinforced concrete with drainage provisions

Answer

Wooden frame with concrete anchors

Answer

Asphalt pad with steel supports

Answer

Gravel base with moisture barrier

Question 3

What is the primary purpose of a summing board (junction box) in a multi-load-cell vehicle scale?

Accepted Answer

To combine and balance individual load cell signals into one output

Answer

To amplify the output signal from each load cell

Answer

To provide power distribution to all load cells

Answer

To convert analog signals to digital format

Question 4

What is the minimum deck length typically required for a single-draft weighing of a standard 18-wheel tractor-trailer?

Accepted Answer

70 feet

Answer

40 feet

Answer

50 feet

Answer

60 feet

Question 5

What is the primary purpose of approach ramps on a truck scale installation?

Accepted Answer

To ensure vehicles travel in a controlled, level manner onto the deck preventing shock loading

Answer

To provide visual alignment guidance for drivers

Answer

To provide additional weighing capacity beyond the main deck

Answer

To protect the scale pit from rainwater runoff

Question 6

Which type of load cell configuration is most commonly used in modern truck scales?

Accepted Answer

Double-ended shear beam

Answer

Single-ended shear beam

Answer

S-type tension/compression load cell

Answer

Ring torsion load cell

Question 7

What does NTEP stand for, and what is its significance for vehicle scales used in commercial trade?

Accepted Answer

National Type Evaluation Program; certifies that a scale design meets NIST Handbook 44 requirements for legal-for-trade use

Answer

National Technical Equipment Program; a voluntary accuracy standard

Answer

National Testing and Equipment Protocol; federal safety compliance program

Answer

National Trade Equipment Program; standardizes scale pricing structures