Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN: 9781337399128
Author: Russell E. Smith
Publisher: Cengage Learning
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Chapter 1, Problem 16RQ

An electrical device that will open an electrical circuit, preventing current flow to the circuit if a small leak to ground is detected, is called a _________.

  1. a. GFCI
  2. b. common circuit breaker
  3. c. fuse
  4. d. receptacle
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2.A. You can usually check for a leak in a vacuum system by looking at or feelingA. at the exhaust of the vacuum pump.B. at the vacuum gauge at the vacuum pump.C. for signs of dirt on the piping. 2.B. When you measure the voltage drop across a set of contacts, you'reA. checking the quality of the contact set.B. sensing how much current is flowing in the circuit.C. measuring the equivalent motor resistance. 2.C. A chain-drive system can be aligned easier than a belt-drive system since the chain-drive systemA. can have a string left on the sprockets after the alignment is complete.B. can have the chain removed while the final alignment is taking place.C. is less critical to misalignment.
The type of hazard whereby sparks are generated electrically is called: Explosion contact fires strain.
Give three(3 each) specific important safety precautions in handling the following gadgets/devices: 1. heater 2. Air conditioner 3. computer system
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General Industrial Safety; Author: Jim Pytel;https://www.youtube.com/watch?v=RXtF_vQRebM;License: Standard youtube license