Probable Effect Concentration Quotients (PECQS) Practice Test 2025 - Free PECQS Practice Questions and Study Guide

The statement regarding flexible cords needing to have enough tension to support heavy weights does not accurately represent their intended use. Flexible cords are designed primarily for flexible connections between devices rather than for supporting heavy loads or bearing tension. They are typically used for power supply to tools and appliances that may need to move or shift position without straining connected cables.

In practical scenarios, flexible cords should not be used in a manner that puts them under significant tension or loads, as this can lead to damage or safety hazards. Instead, their design allows for mobility and ease of connection, suggesting that they should lie freely without bearing substantial weight.

The other statements regarding flexible cords highlight important characteristics: they must be robust enough (hard-service type) to handle certain loads, they must indeed carry a minimum electrical load for proper functioning, and they should be easily replaceable in case of wear or damage, as flexibility is a core aspect of their functionality.