Resistance is defined as the opposition to current flow and is measured in:?
A. ?Volts
B. Resistance
C. ?Ampere's
D. Ohm's
Answer: D
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Temperature-sensing tests use handheld _____ for external readings.
a. thermowells b. thermometers c. pyrometers d. ultrasonic probes
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When a chiller using R-11 is operating, the low pressure side of the system ____.
A. always shows a positive pressure B. is always in a vacuum C. contains a mixture of oil and air D. rejects oxygen and moisture
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Lower cutting speeds are used when machining:
A) Tough materials B) Hard materials C) Abrasive materials D) All of the above
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What is the main difference between the government and private contracts?
What will be an ideal response?
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