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Questions and Answers
What is the main role of pressure switches in a hydraulic system?
Which statement about engine-driven pumps is accurate?
What function does the engine pump fire shutoff valve serve?
How is the engine pump fire shutoff valve activated?
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What is usually indicated by low pump pressure output?
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Study Notes
Hydraulic Power Sources
- Engine-driven pumps (EDP) are the primary source of hydraulic power.
- Electric and air-driven pumps are also used.
- EDPs are variable displacement pumps permanently connected to the engine.
Low Pump Pressure Detection
- Low pump pressure indicates pump failure.
- Pressure switches on the output side of system pumps detect low pressure.
- Pressure switches send an indication to the cockpit when low pressure is detected.
Engine Fire Shutoff Valve
- To stop the flow of hydraulic fluid to the EDP in case of engine fire, a shutoff valve is installed between the reservoir and the EDP.
- The shutoff valve is operated by an electric motor.
- The valve is activated by fire push buttons or fire handles on the cockpit fire panel.
- Each shutoff valve has a valve position indicator for clear visibility.
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Description
Test your knowledge on hydraulic power sources, low pump pressure detection, and engine fire shutoff valves. This quiz covers engine-driven pumps, pressure switches, and safety mechanisms related to hydraulic systems. Ideal for students and professionals in aviation and hydraulic engineering.