Technician a Says the Spool Valve Got Its Name Because

question 50

Multiple Choice

Technician A says the spool valve got its name because of its resemblance to the spool that thread or fishing line comes on. Technician B says that with a spool valve, the clearance between the land and the bore must be just great enough to prevent the valve from sticking as it moves back and forth.

• A) Technician A
• B) Technician B
• C) Both A and B
• D) Neither A nor B

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Definitions:

Irruptive Population

A sudden, sharp increase in an animal population size, often as a result of changes in food availability or other environmental factors.

Long-lived Species

Organisms that have a lifespan significantly longer than most other species within their ecological niche or environment.

Economies

Systems of production, distribution, and consumption of goods and services within a certain geographical area or globally.

Societies

Groups of individuals involved in persistent social interaction, or a large social grouping sharing the same geographical or virtual territory, typically subject to the same political authority and dominant cultural expectations.