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Questions and Answers
How does the float in a fuel quantity indicator function when the fuel level is full?
How does the float in a fuel quantity indicator function when the fuel level is full?
- It creates maximum resistance, reducing current flow.
- It has no effect on the transmitter's resistance.
- It produces minimum resistance, allowing maximum current flow. (correct)
- It directly measures the fuel temperature.
What happens to the current flow in the fuel quantity indicator as the fuel level decreases?
What happens to the current flow in the fuel quantity indicator as the fuel level decreases?
- The current flow stops completely.
- The current flow decreases due to increased resistance. (correct)
- The current flow remains unchanged.
- The current flow increases as the resistance decreases.
What role does the variable resistance transmitter play in the fuel quantity indicator system?
What role does the variable resistance transmitter play in the fuel quantity indicator system?
- It creates a fixed resistance irrespective of fuel level.
- It regulates fuel flow to the engine.
- It varies resistance based on the float position. (correct)
- It measures the temperature of the fuel.
What does maximum pointer deflection on the fuel quantity indicator indicate?
What does maximum pointer deflection on the fuel quantity indicator indicate?
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Which statement accurately describes the relationship between fuel level and the pointer deflection in the indicator?
Which statement accurately describes the relationship between fuel level and the pointer deflection in the indicator?
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Study Notes
Magnetic Type Fuel Quantity Indicators
- Utilized alongside float-operated variable resistance transmitters in fuel tanks.
- Full float position generates minimal resistance, which allows maximum current to flow.
- Maximum current flow results in maximum deflection of the fuel quantity indicator's pointer.
- As fuel level decreases, transmitter resistance increases.
- Increased transmitter resistance leads to reduced current flow in the fuel quantity indicator.
- Smaller current flow corresponds to smaller pointer deflection, indicating lower fuel levels.
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