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In: Mechanical Engineering

Hook gauge is a low cost that can detect a very small changes in liquid level...

Hook gauge is a low cost that can detect a very small changes in liquid level in open tank. A small changes in liquid will give a large change in metric. Which indirect liquid level measurement below is able to achieve the same output as hook gauge with a low cost? Briefly explain how the measurement works.
a) Capacitance level gauge
b) Hydrostatic pressure gauge
c) Bubbler
d) Ultrasonic level gauge

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