Which of the following tools can help locate a short circuit?

A test light is an effective tool for locating short circuits because it can illuminate when there is electrical continuity in a circuit. By connecting the test light across different points in the circuit, a technician can determine whether power is reaching various components. If the test light turns on at one point and not at another, it indicates where power is being interrupted—helping to isolate the short circuit area.

The test light works by using a simple electrical circuit that includes a bulb, and its brightness can indicate the presence of voltage. In the case of a short circuit, the test light will react differently compared to normal conditions, allowing the technician to pinpoint issues in the wiring or connections.

Other tools, such as an ocular gauge, analog voltmeter, or fuel pressure gauge, do not serve this specific purpose effectively. The ocular gauge is typically used for visual inspection of components, while an analog voltmeter measures voltage rather than tracing the flow of current. A fuel pressure gauge is completely unrelated to electrical circuits and is used specifically for measuring fuel pressure. Thus, among the options given, the test light stands out as the most relevant tool for locating short circuits.