When loading a tandem dump truck from the side, which technique is generally most efficient for minimizing cycle time and achieving an even load distribution?

Question: When loading a tandem dump truck from the side, which technique is generally most efficient for minimizing cycle time and achieving an even load distribution?

Answer options:

• Spotting the truck at 90 degrees to the excavator and loading from front to back of the truck box.
• Placing the truck parallel to the excavator and loading from one end of the box to the other. ✅ Spotting the truck at a 45-degree angle to the excavator's swing path, allowing short swing cycles.
• Loading only the rear half of the truck first, then repositioning the truck for the front half.

Correct answer: Spotting the truck at a 45-degree angle to the excavator's swing path, allowing short swing cycles.

Explanation: Spotting the truck at a 45-degree angle to the excavator allows for shorter swing cycles and better visibility for the operator, which optimizes loading efficiency and helps distribute the material evenly. Loading at 90 degrees requires longer swings, and loading parallel can limit access and visibility, increasing cycle times. Loading in two separate halves requires unnecessary truck repositioning.