The device shown in the illustrated is known...

🔍 Key Concepts

• Look closely at the spool inside the valve body and count how many distinct operating positions it appears to have. • Notice the actuator type on the left side of the valve (lever and plunger) and whether you see any springs returning the spool to center. • Compare what you see to the difference between rotary valves (turning motion) and sliding-spool directional control valves (back‑and‑forth motion).

💭 Think About

• Does the internal spool look like it rotates in a circle, or slides linearly left and right? How does that help you remove one of the choices? • Can you see any central or end springs that would automatically push the spool back to a center position when the lever is released? If not, what kind of holding mechanism might be present? • Based on the visible lands and grooves on the spool, how many flow paths (positions) do you think the valve can select?

✅ Before You Answer

• Eliminate any answer that requires a rotary motion if the illustration clearly shows a sliding spool. • Check carefully for springs in the center section of the valve versus small detent mechanisms (like balls and grooves) near the ends. • Before choosing, be sure your pick matches both the number of spool positions and the method used to hold or return the handle (spring‑centered vs. detented).

The device shown in the illustrated is known as a/an __________. See illustration GS-0035.

three-position, detented, directional control valve

four-position, spring-centered, directional control valve

rotary, directional control valve

offset solenoid, directional control valve

🔍 Key Concepts

💭 Think About

✅ Before You Answer