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Questions and Answers
What is the primary function of a direct drain valve in a tank?
What is the primary function of a direct drain valve in a tank?
- To release pressure from the tank
- To drain the contents when installed at the lowest point (correct)
- To filter impurities from the fuel
- To regulate the flow of fuel within the tank
Which statement best describes an indirect drain valve?
Which statement best describes an indirect drain valve?
- It is the most common type of valve used in fuel tanks.
- It requires a drain line to transfer fluid from the tank to the valve. (correct)
- It can operate without a drain line connected to it.
- It is always positioned at the lowest point of the tank.
What distinguishes a direct drain valve from an indirect drain valve?
What distinguishes a direct drain valve from an indirect drain valve?
- The direct drain valve allows for automatic operation, while the indirect does not.
- The direct drain valve requires no maintenance, whereas the indirect drain valve does.
- The direct drain valve is located at the lowest point of the tank while the indirect drain valve is not. (correct)
- The direct drain valve is larger than the indirect drain valve.
Which scenario is most likely to require the use of an indirect drain valve?
Which scenario is most likely to require the use of an indirect drain valve?
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What might be a consequence of installing a direct drain valve incorrectly?
What might be a consequence of installing a direct drain valve incorrectly?
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Study Notes
Direct Drain Valves
- Installed at the lowest point of a tank
- Allow for direct drainage of the tank
Indirect Drain Valves
- Installed at a point higher than the lowest point in the tank
- Drain line connects the lowest point of the tank to the valve housing
- Used when design or safety requirements prevent direct installation of a drain valve at the tank's lowest point
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