Two Engines Are Identical Except That Engine a Is Two

question 77

Multiple Choice

Two engines are identical except that engine A is two years old and engine B is new. If engine A does 15% less work than engine B under identical operating conditions, what is the ratio of the efficiencies of the two engines, e_A/e_B?

• A)0.10
• B)0.15
• C)0.85
• D)0.90
• E)1.0

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Definitions:

Embryonic

Pertaining to the earliest stage of development in living organisms after conception, before birth or hatching.

Germinal

Pertaining to the earliest stage of embryonic development, from conception to approximately two weeks, when the zygote begins to divide and grow.

Totipotent Stem Cells

Cells that have the potential to grow into a complete embryo and, ultimately, to become a normal, healthy infant.

Neural Cells

Are the basic building blocks of the nervous system, including neurons and glial cells, responsible for transmitting and processing information.