Final answer:
Increasing the pump pressure in a spraying device will increase the velocity of the fluid, allowing it to reach higher elevations and also potentially increasing the probability of fluid drift due to wind.
Step-by-step explanation:
The question asks about the effect of increasing the pump pressure on spray discharge. According to the continuity equation and principles of fluid dynamics, increasing the pressure exerted by a pump will lead to an increase in the fluid velocity, assuming the density of the fluid remains constant. If we consider a spraying device such as a hose or a fountain, increasing the pressure will indeed cause the fluid to exit at a higher velocity, and due to this increased velocity, the fluid will reach a higher elevation before gravity slows it down and causes it to fall. This effect aligns with the principles that describe how kinetic energy is converted into potential energy as the height of the fluid column increases. Consequently, increasing pump pressure will likely increase the height that the spray will go (Option B) and may also increase the probability of drift (Option D) as the fine droplets are more likely to be carried away by wind.