Spray Equipment And Calibration HARD 40 CFR § 171.103(d) Core Standards

An applicator drives a spray tractor over a 300-foot test course. The travel time is exactly 41 seconds. What is the tractor ground speed in Miles Per Hour (MPH)? (Use formula: MPH = [Distance in feet × 60] / [Time in seconds × 88])

Multiple Choice Options

A 3.5 MPH
B 5.0 MPH ✓ OFFICIAL VERIFIED CORRECT ANSWER
C 7.2 MPH
D 2.8 MPH
✓ LEGAL EXPLANATION & STATUTORY RATIONALE
40 CFR § 171.103(d) Core Standards
Official Manual Chapter: Chapter 10: Calibration Math & Application Equipment

Calculation: MPH = (Distance in ft × 60) / (Time in seconds × 88). Distance = 300 ft, Time = 41 s. MPH = (300 × 60) / (41 × 88) = 18,000 / 3,608 = 4.988 MPH, which rounds accurately to 5.0 MPH.

Official EPA Core Study Domain Spray Equipment And Calibration
Practice All Domain Questions →