Oklahoma Locksmith Practice Exam 2025 – Comprehensive All-in-One Guide to Exam Success!

The first step a technician should take when measuring direct current with a multimeter is to disconnect the power to the circuit. This is a critical safety procedure. By powering down the circuit, the technician ensures that there is no risk of electric shock or short-circuiting the multimeter, which could damage the device or lead to inaccurate readings.

In practice, this also allows for a safer environment to connect the multimeter leads correctly, ensuring that measurements can be taken without risk. Properly turning off the power avoids hazards associated with working on live circuits and guarantees that the technician can manage the equipment carefully and accurately.

Once the circuit is de-energized, the technician can proceed to connect the multimeter leads correctly to measure the current flow. The subsequent steps would often involve setting the multimeter to the appropriate range and verifying the connections, but the primary concern is always safety first by ensuring power is disconnected.