Proximity detectors usually use a ________ switch in conjunction with a magnet

A) normally closed B) solenoid C) reed D) optical


C

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Which of the following is a personal safety hazard associated with compressors?

A. High pressure B. High temperatures C. Slipping due to leaks D. All of the above

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The subsequent problems deal with the circuit below where:R1=5k?, R2=10k?, R3=5k?, R4=10k?, R5=10k?, V1=5V, and V2=10V.What is the voltage across R2?

A. 2/3 V B. 10/3 V C. 1/3 V D. 1/2 V E. 5/3 V

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What is the most accurate method of checking the degree of antifreeze protection of an ethylene glycol (EG) coolant mixture?

A. Litmus paper B. Refractometer C. Thermometer D. Hydrometer

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The ____________________ view of population and resources is that the world population will eventually cause severe shortages of some resources.

Fill in the blank(s) with the appropriate word(s).

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