Question

What pumps hydraulic oil to the hydraulic circuit?

• A. Flow control valve
• B. Oil reservoir
• C. Rotary pumps
• D. Pressure gauge

Hint:

Hydraulic System Components. Pump: Generates flow and pressure. Reservoir: Stores fluid. Valves (Directional, Pressure, Flow Control): Regulate fluid path, pressure, rate. Actuators (Cylinders, Motors): Perform work.

Answer 1

The Correct Option is C

In a hydraulic system, the component responsible for moving the hydraulic fluid (oil) from the reservoir and generating the necessary pressure and flow to operate the actuators is the pump
Common types of hydraulic pumps include gear pumps, vane pumps, and piston pumps, many of which operate based on rotary motion
- Flow control valves regulate the *rate* of fluid flow
- Oil reservoir stores the hydraulic fluid
- Pressure gauge measures the fluid pressure
- Rotary pumps (like gear, vane, certain piston types) are mechanical devices that actually pump the fluid
Therefore, rotary pumps (representing a major category of hydraulic pumps) pump the hydraulic oil
(Note: User key indicated Flow control valve, which is incorrect)