What device is designed to open and disconnect a circuit in the event of excessive current?

A. fuse
B. power supply
C. wire
D. potentiometer


Answer: A

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What is a major advantage of a valve rotator?

A. sharper interference angle may be used B. reduce carbon buildup on seat C. lower tension valve springs can be used D. exhaust valves run cooler

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Type A soil includes soil types such as _____.

a. crushed rock, silt, sandy loam, and unstable rock b. gravel, loamy soil, sand, and submerged soil c. clay, silty clay, sandy clay, and clay loam d. natural solid mineral matter that can be excavated with vertical sides and remain intact while exposed

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The vast majority of the eggs sold in the United States are white eggs

Indicate whether the statement is true or false

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All mechanical seals have a set of _____, one that rotates and one that is stationary

A) primary faces B) cartridges C) O-rings D) springs

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