Agricultural Engineering 2025 – 400 Free Practice Questions to Pass the Exam

The adjustable orifice with agitator is commonly used in a row crop drill planter. This type of equipment is designed to plant seeds in rows at specific intervals, ensuring uniform distribution and optimal spacing for crop growth. The adjustable orifice allows for precise control over seed flow and placement, which is crucial for maximizing crop yields and minimizing seed waste.

The inclusion of an agitator helps to prevent seed clumping or bridging, ensuring that seeds flow smoothly through the planter's mechanism. This is particularly important in row crop planting where precise depth and spacing can significantly affect the growth and health of the plants.

In contrast, other types of planters, such as hill drop planters, broadcasters, and transplanters, each have specific mechanisms suited to their operational goals. A hill drop planter typically releases seeds in groups or "hills," a broadcaster spreads seeds over a wide area without regard for spacing, and a transplanter is designed for moving seedlings rather than directly planting seeds in rows. These varying functions require different designs and mechanisms that do not incorporate an adjustable orifice with agitators in the same way as row crop drill planters do.