The Hall-effect sensor detects __________.
A. metallic objects
B. nonmetallic objects
C. magnetic fields
Answer: C
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What PPE should be worn during normal and abnormal heat exchanger operations?
A. Goggles B. Breathing protection C. Face shields D. All of the above
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The vertical portion of a stair is called
What will be an ideal response?
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Agriculture consumes almost ____% of the water used annually in the United States
a. 30 b. 50 c. 70 d. 90
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Automatic leveling headlamps uses a ____ that adjusts the headlamp reflector up or down for proper headlamp aiming.
A. stepper motor B. spirit level C. switch D. thumb wheel
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