Which of the following systems uses compression pumps and condensers to cool the air?
A) Evaporative system B) Mechanical compression system
C) Thermoelectric system D) Absorption system
B
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Why does an electric motor require overcurrent protection?
What will be an ideal response?
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Which organization grades engine oils by viscosity?
A. SAE B. API C. TMC D. ATA
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How long must a torque wrench be so that a technician applying 50 pounds of force can create 125 lb?ft of torque?
What will be an ideal response?
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Circuit breakers trip because:
A) They reach the end of their programmed operation cycle. B) They sense someone receiving an electrical shock. C) They sense too much current. D) They sense an over voltage condition.
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