A Heat Pump Has a Coefficient of Performance of 4

question 39

Multiple Choice

A heat pump has a coefficient of performance of 4. If the heat pump absorbs 20 cal of heat from the cold outdoors in each cycle, the heat expelled (in cal) to the warm indoors is

• A) 34
• B) 27
• C) 36
• D) 40
• E) 80

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Definitions:

Accounting Rate of Return

A financial metric used to assess the profitability of an investment, calculated by dividing the average annual accounting profit by the initial investment cost.

Cash Payback Method

An investment appraisal technique that calculates the time needed to recoup the cost of an investment through cash flows.

Present Values

The present value is the current worth of a future sum of money or stream of cash flows given a specified rate of return.

Capital Rationing

The process of limiting the number of new projects or investments undertaken by a company due to budget constraints.