Increasing the pump pressure will produce smaller droplets which increases drift probability.

Increasing the pump pressure will produce smaller droplets which increases drift probability.

• A. True
• B. False
• C. It reduces drift
• D. No effect on drift

Answer: (A)

Droplet size and drift risk are tightly linked. When pump pressure is increased, the liquid is forced through the nozzle more forcefully and brakes apart into many smaller droplets. These tiny droplets have less inertia, so they are more easily carried by even light winds and stay suspended longer in the air, which raises the chance they will drift away from the target. They also evaporate more quickly due to their larger surface area relative to volume, which can contribute to off-target movement. Because of this relationship, higher pressure tends to increase drift probability, making the statement true. It’s worth noting the trade-off: finer droplets can improve coverage on the target but raise drift risk, so operators balance pressure with nozzle type, wind conditions, and drift-reduction practices.

Droplet size and drift risk are tightly linked. When pump pressure is increased, the liquid is forced through the nozzle more forcefully and brakes apart into many smaller droplets. These tiny droplets have less inertia, so they are more easily carried by even light winds and stay suspended longer in the air, which raises the chance they will drift away from the target. They also evaporate more quickly due to their larger surface area relative to volume, which can contribute to off-target movement. Because of this relationship, higher pressure tends to increase drift probability, making the statement true. It’s worth noting the trade-off: finer droplets can improve coverage on the target but raise drift risk, so operators balance pressure with nozzle type, wind conditions, and drift-reduction practices.