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An ______ listens for the noise of gas leakage:

1) Ultrasonic leak tester
2) Fluorescent leak detector
3) Helium leak detector
4) Vacuum leak detector

Answer :

Final answer:

An ultrasonic leak tester is designed to detect the noise created by gas leakage through its ability to identify ultrasonic frequencies produced by turbulent gas escaping into the atmosphere.

Explanation:

An ultrasonic leak tester is a device designed to listen for the noise of gas leakage. Ultrasonic leak detection works on the principle that the leakage of gas through a small orifice into the atmosphere creates ultrasonic sounds due to the turbulence as the gases mix. Detecting these ultrasonic frequencies which are beyond the range of human hearing enables the identification of a gas leak. The application of ultrasonic leak testers is diverse, including industrial settings where maintaining the integrity of gas systems is critical.

Factors like the pressure of the gas, the size of the leak, and the background noise levels can influence the effectiveness of the detection process. Modern ultrasonic leak detectors are highly sensitive and can pinpoint even small leaks, which are crucial for systems operating under high-vacuum conditions or requiring pure gas environments, such as those used in medical applications, research labs, or industrial processes.

Gauges, like those used for measuring the pressure in gas cylinders or the tire pressure, provide a different means of monitoring systems but do not directly detect gas leaks. High-sensitivity devices like ionization gauges are used to monitor gases in enclosed systems, and gaseous ionization detectors work based on the ionization of gas atoms. However, for the specific task of detecting the noise of gas leakage, an ultrasonic leak tester is the tool that applies.

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