Probable Effect Concentration Quotients (PECQS) Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Probable Effect Concentration Quotients Test with a variety of questions. Improve your understanding with detailed hints and explanations to ensure a confident test experience!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

In which of the following configurations must conductors be securely and rigidly supported?

In negative pressure systems
In horizontal runs only
When mounted on the same surface
In vertical runs only

The correct answer is: When mounted on the same surface

The correct answer identifies that conductors must be securely and rigidly supported when mounted on the same surface. This ensures that all conductors maintain proper alignment and are less likely to experience mechanical stress or movement that could lead to wear or electrical hazards. When conductors are mounted on the same surface, they often share a common path and may be subjected to similar environmental conditions, making it essential to provide adequate support to prevent sagging or improper spacing that could affect their function and safety. Additionally, securely supporting conductors prevents them from coming into contact with one another or with other materials that could lead to short circuits or other safety concerns. Understanding the physical layout and support of conductors is essential for maintaining electrical code compliance and ensuring a safe installation. This applies regardless of the conductor's orientation or the pressure systems involved.