Which statement regarding ammeter/voltmeter is correct?

The statement that accurately represents the function of an ammeter and voltmeter working together is that they indicate both the amount of current being drawn from the battery and the amount being supplied to the battery. An ammeter measures the current flowing through the circuit, which is crucial for understanding how much electrical load is being used by equipment. Meanwhile, a voltmeter measures the voltage across the battery and the circuit components, providing insight into the electrical potential being supplied.

Together, these instruments provide a comprehensive view of the electrical system's performance. By observing both the current drawn and the charging current supplied to the battery, an aerial engineer can assess the health of the electrical system, ensuring that it operates within safe parameters and identifying any potential inefficiencies or malfunctions.

Other statements focus on either the current being drawn, the charging process, or monitoring loads individually, but do not encompass the full functionality that both an ammeter and a voltmeter provide when assessing the electrical system. This holistic approach is essential for maintaining optimal performance in aerial applications where electrical systems are critical.