Which statement best describes a drop-out test for a thermocouple pilotstat coil?

• A. The test to measure the millivolt at which the pilotstat coil fails to hold the valve open
• B. The test to measure the millivoltage under no-load open-circuit conditions
• C. The test to measure the voltage when the circuit is complete and under load
• D. The test to determine the coil's resistance at ambient temperature

Answer: (C)