Final answer:
B. Monitoring engine power and carburetor heat application. The method used to determine that carburetor ice has been eliminated is monitoring engine power and carburetor heat application.
Step-by-step explanation:
The method used to determine that carburetor ice has been eliminated is B. Monitoring engine power and carburetor heat application.
Carburetor ice can occur when the temperature drops and the moisture in the air condenses around the carburetor, forming ice. This can disrupt the flow of air and fuel into the engine, leading to a decrease in engine power. To eliminate carburetor ice, pilots can apply carburetor heat, which introduces warm air into the carburetor, melting any ice that has formed.
By monitoring the engine power and applying carburetor heat, pilots can ensure that any carburetor ice has been eliminated and the engine is performing optimally.