Answer :
Final answer:
Systems charged only with nitrogen can use Ultrasonic leak detectors and Soap bubble solution leak detectors to identify leaks. These types of detectors work independent of the type of gas involved, making them applicable to nitrogen.
Explanation:
The detectors that can be used with systems that are only charged with nitrogen are A) Ultrasonic leak detectors and D) Soap bubble solution leak detectors.
Ultrasonic leak detectors work by detecting the high-frequency sounds produced by gas or air escaping from a system. These detectors can locate leaks, regardless of the type of gas involved, including nitrogen.
On the other hand, Soap bubble solution leak detectors are a simple and effective method for locating leaks. When the soap solution is applied to an area where a leak may exist, the escaping nitrogen gas will produce bubbles, indicating the site of the leak.
Infrared and halide leak detectors are used for specific types of gases, and as such would not be applicable for a system charged purely with nitrogen.
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