Which combination of tools is commonly used to maintain cross slope during grading?

• A. Fire extinguisher and gloves
• B. Grade stakes, laser, or string lines
• C. Tape measure and level
• D. Paint and markers

Answer: (B)

Maintaining cross slope across a graded area requires a reliable reference line that runs across the width of the work so water will drain properly. Grade stakes, a laser, or string lines provide that reference: grade stakes mark the intended elevations at key spots, the laser projects a continuous slope line across the area at the correct cross-slope, and string lines give a clear physical line to guide the grading along the width. By using these together, the operator can compare the actual ground to the target cross slope and make adjustments as grading progresses, keeping the slope uniform from high side to low side.

Other tools shown aren’t suited for establishing cross slope across a wide area: safety gear doesn’t set the grade, and a tape measure plus level mainly support vertical or small-area checks rather than a wide, consistent cross-slope reference; paint and markers may mark lines but don’t provide a measurable, transferable slope reference.