Firefighter Mechanical Aptitude · Question
What is the primary function of a check valve in a hydraulic circuit?
A check valve (or non-return valve) is a two-port valve that permits fluid to flow in one direction only. This is crucial for maintaining pressure or preventing
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Question: What is the primary function of a check valve in a hydraulic circuit?
Answer options: ✅ To allow fluid flow in only one direction.
- To regulate the pressure of the fluid.
- To filter contaminants from the fluid.
- To prevent air from entering the system.
Correct answer: To allow fluid flow in only one direction.
Explanation: A check valve (or non-return valve) is a two-port valve that permits fluid to flow in one direction only. This is crucial for maintaining pressure or preventing backflow in hydraulic systems.
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- Scenario 1: Which simple machine uses a fulcrum to multiply force or change the direction of force?
- Scenario 2: If a hydraulic jack has a small piston with an area of 5 cm² and a large piston with an area of 50
- Scenario 3: Which of the following would require the MOST force to move?
- Scenario 4: A rope is tied to a heavy box. Instead of pulling the box directly, a firefighter wraps the rope a
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