Rapid Fire AIT Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What is an example of a passive recovery technique?

Solar power generation

Wind energy conversion

Energy-efficient lighting

DWHR/GWHR

The correct example of a passive recovery technique is DWHR (Drain Water Heat Recovery) or GWHR (Grey Water Heat Recovery). These techniques are designed to capture and utilize waste heat from various sources, such as warm water that drains from showers or sinks. By using this reclaimed heat to preheat incoming cold water or for space heating, these systems improve overall energy efficiency without requiring active mechanical components.

In contrast, the other options—solar power generation, wind energy conversion, and energy-efficient lighting—primarily involve active systems or technologies that generate or utilize energy in real-time. They focus on converting or saving energy rather than passively harnessing wasted energy from existing sources.

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