An R-134a Expansion Valve System That Is Properly Charged Has

question 4

Multiple Choice

An R-134a expansion valve system that is properly charged has the following gauge readings,high-side 150 psig and low-side 42 psig and the ambient air temperature is 85°F.Which of the following is the most likely cause?

• A) A restricted receiver drier
• B) An out of adjustment temperature blend door
• C) A restricted condenser
• D) A stuck open expansion valve

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Definitions:

Economies of Scope

Cost advantages that enterprises obtain due to efficient resource utilization in producing a variety of products rather than specializing in a single product.

Learning by Doing

The process of gaining skill or knowledge from direct experience or practice.

Economies of Scale

The cost advantages that enterprises obtain due to their scale of operation, which often leads to a reduced cost per unit of output.

Diseconomies of Scope

A situation in which a single firm producing multiple products has higher costs than if each product were produced by a separate firm.