If it is desired to perform a thermo graphic analysis of a piece of equipment with a suspected possible fault and compare the thermal signature with similar fault-free equipment, what is the name of the thermography performed?

Correct Answer: Option B — Comparative thermography.

Comparative thermography involves measuring the thermal signature of a component and comparing it against an identical, fault-free unit under similar operating conditions. This technique effectively identifies anomalies, such as high-resistance electrical connections or localized overheating, by highlighting deviations from the established thermal profile of healthy equipment.