The UML Class Diagrams Show What Objects Contain and How

question 20

True/False

The UML Class Diagrams show what objects contain and how they are related - much like ERD diagrams in a structured design approach.

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Definitions:

Service Valve

A valve used in various mechanical and fluid systems for maintenance, repair, or diagnostic purposes, allowing for control of fluid flow.

Front-Seated

Typically refers to valves in refrigeration or HVAC systems that are in the open position when the valve stem is screwed in all the way.

Refrigerants

Fluids used in air conditioning and refrigeration systems to absorb and transport heat.

R-134a

A hydrofluorocarbon refrigerant used in air conditioning systems, known for its low impact on the ozone layer compared to previously used refrigerants.