Certified Fire Protection Specialist (CFPS) — Question 42

Electrical equipment used in Class I, Division I hazardous locations is often referred to as:

Answer options

• A. intrinsically safe
• B. explosion resistant.
• C. propagation resistant.
• D. explosion proof.

Correct answer: D

Explanation

The correct answer is 'explosion proof' because this designation specifically refers to equipment that can withstand internal explosions without igniting surrounding hazardous materials. The other options, while related to safety, do not accurately describe the standard for Class I, Division I locations.