What does the 195 in 4B195 denote?

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Master the TFM03 Extinguisher Type K Exam. Learn through detailed flashcards and multiple choice questions, with comprehensive hints and explanations. Prepare effectively for your certification!

Multiple Choice

What does the 195 in 4B195 denote?

Explanation:
The number after the class designation shows the cylinder’s operating pressure in psi. Here, 195 means the extinguisher is designed to operate at 195 psi when charged and ready for use. The hydrostatic test pressure is a separate, higher specification used during testing to prove the cylinder can withstand pressure, and would be listed elsewhere. A temperature rating would be shown as a temperature value, not a pressure, and a model number would be a different identifier. So the 195 denotes the normal operating pressure of the cylinder in psi.

The number after the class designation shows the cylinder’s operating pressure in psi. Here, 195 means the extinguisher is designed to operate at 195 psi when charged and ready for use. The hydrostatic test pressure is a separate, higher specification used during testing to prove the cylinder can withstand pressure, and would be listed elsewhere. A temperature rating would be shown as a temperature value, not a pressure, and a model number would be a different identifier. So the 195 denotes the normal operating pressure of the cylinder in psi.

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