When Soap-Solution Testing the Operation of an FMVSS-121 Treadle Valve,what

question 22

Multiple Choice

When soap-solution testing the operation of an FMVSS-121 treadle valve,what is the maximum permissable leakage at the exhaust valve during an 80 psi (5.5 bar) service application?

• A) absolute zero
• B) 1-inch (25 mm)bubble in 3-seconds
• C) 1-inch (25 mm)bubble in 10-seconds
• D) 1-inch (25mm)bubble in 60-seconds

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Definitions:

Serous Membranes

are thin layers of tissue that cover internal organs and body cavities, secreting a fluid that lubricates and reduces friction.

Visceral Layer

The layer of a membrane that is in direct contact with organs, wrapping them in various body cavities.

Parietal

Relating to the parietal bones of the skull or the parietal lobe of the brain, involved in processing sensory information.

Directional Terminology

Terms used to describe the locations of structures or the direction of movements in the body relative to other structures.