APPSC AEE (CIVIL/MECHANICAL) 2019
⭕ (a) Only in one direction
⭕ (b) In both the directions
⭕ (c) To change the direction
⭕ (d) To stop
Explanation: A check valve is a non-return or one-way valve commonly used in hydraulic systems. It allows fluid to pass through in one direction only and prevents backflow when the fluid tries to reverse direction. As shown in the diagram below, flow is allowed in one direction, while it blocks flow in the opposite direction:
Function of Check Valve in Hydraulic Systems
This MCQ tests your understanding of fluid mechanics and hydraulic control devices. Check valves are essential for preventing fluid reversal in systems such as pipelines, hydraulic lines, and pump setups.
Where Are Check Valves Used?
- Hydraulic systems to control direction of flow
- Water distribution lines
- Pumps and compressors
- Backflow prevention in pipelines
Conclusion:
The correct answer is Only in one direction. Check valves are simple but critical components in fluid handling systems and often asked about in exams like APPSC AEE, SSC-JE, and GATE.
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