The Threshold Limit Values-Short-Term Exposure Limit (TLV-STEL) Is the Maximum

question 1

Multiple Choice

The threshold limit values-short-term exposure limit (TLV-STEL) is the maximum acceptable exposure a person can tolerate, without apparent ill effects, for ____ minutes of exposure.

• A) 15
• B) 30
• C) 45
• D) 60

---

Definitions:

Surface Tension

The cohesive force at the surface of a liquid that allows it to resist an external force, due to the uneven attraction between molecules at the surface and those in the bulk of the liquid.

Adhesion

The force that holds molecules of different substances together, important in various biological and physical processes.

Cohesion

The action or property of like molecules sticking together, being mutually attractive.

Cohesion

The action or property of molecules of the same substance sticking together, playing a critical role in the movement of water in plants.