Nozzle tips that are used evenly spaced on booms include:

• A. Regular flat fan
• B. Regular flat fan and Whirl chamber
• C. Whirl chamber
• D. Raindrop

Answer: (B)

When you place nozzle tips evenly along a spray boom, you want patterns that overlap smoothly to give uniform coverage across the entire width. Regular flat fan nozzles produce a steady, flat spray pattern that overlaps well with neighboring tips, making it easy to achieve even coverage as you pass over the target area. Whirl chamber nozzles create a swirling pattern that also distributes spray evenly across the boom width while offering some drift control, which helps maintain consistent application along the whole swath. Raindrop nozzles, on the other hand, tend to produce very fine droplets with higher drift potential and less predictable overlap between evenly spaced tips, leading to uneven coverage. So the best combination for even spacing on booms is regular flat fan and whirl chamber.