1 Electrical Safety 2 Basic Electricity 3 Electric Circuits 4 Electric Meters 5 Components, Symbols, And Circuitry Of Air-conditioning Wiring Diagrams 6 Reading Schematic Diagrams 7 Alternating Current, Power Distribution, And Voltage Systems 8 Basic Electric Motors 9 Components For Electric Motors 10 Contactors, Relays, And Overloads 11 Thermostats, Pressure Switches, And Other Electric Control Devices 12 Electronic Control Devices 13 Heating Control Devices 14 Troubleshooting Electric Control Devices 15 Residential Air-conditioning Control Systems 16 Installation Of Heating, Cooling, And Refrigeration Systems 17 Commercial And Industrial Air-conditioning Control Systems 18 Troubleshooting Modern Refrigeration, Heating, And Air-conditioning Control Circuitry And Systems Chapter2: Basic Electricity
Chapter Questions Section: Chapter Questions
Problem 1RQ: All physical objects are composed of __________. a. substances b. matter c. neutrons d. ketons Problem 2RQ: What is an atom? Problem 3RQ: Which of the following is a part of the atom? a. electron b. proton c. neutron d. all of the above Problem 4RQ: What is static electricity? Problem 5RQ: Name three ways electricity can be produced. Problem 6RQ: What part do protons and electrons play in the production of electricity? Problem 7RQ: Which of the following is the simplest atom that exists? a. carbon b. hydrogen c. oxygen d. sulfur Problem 8RQ: What are the four most important characteristics of an electric circuit? Problem 9RQ: What is electromotive force? Problem 10RQ: Electromotive force is commonly measured in _____. a. amperes b. ohms c. volts d. watts Problem 11RQ: What is current? Problem 12RQ: How is current measured? a. amperes b. ohms c. volts d. watts Problem 13RQ: What is resistance? Problem 14RQ: How is resistance commonly measured? a. amperes b. ohms c. volts d. watts Problem 15RQ: What is electrical power? Problem 16RQ: How is electrical power commonly measured? a. amperes b. ohms c. volts d. watts Problem 17RQ: Where do electrons exist in an atom, and what is their charge? Problem 18RQ: True or False: All atoms tend to lose electrons. Problem 19RQ: State the law of electric charges. Problem 20RQ: What is a proton? Where does it normally exist in an atom, and what is its charge? Problem 21RQ: Describe briefly the method a dry cell battery uses to produce voltage. Problem 22RQ: What is a conductor? Problem 23RQ: Which of the following is the best conductor? a. wood b. thermoplastic c. copper d. cast iron Problem 24RQ: What is an insulator? Problem 25RQ: Which of the following is the best insulator? a. wood b. thermoplastic c. copper d. cast iron Problem 26RQ: Why do metals make the best conductors? Problem 27RQ: How do electric utility companies charge customers for electricity? Problem 28RQ: What is the meaning of SEER when used in conjunction with an air-conditioning unit? Problem 29RQ: State Ohms law. Problem 30RQ: True or False: Ohms law applies to all types of electrical circuits. Problem 31RQ: What is the ampere draw of a 5000-watt electric heater used on 120 volts? a. 42 ampere b. 45 ampere... Problem 32RQ: What is the resistance of the heating element of an electric iron if the ampere draw is 8 amperes... Problem 33RQ: What is the voltage of a small electric heater if the heater is drawing 12 amperes and has a... Problem 34RQ: What is the Btu/hour output of an electric heater rated at 15 kilowatts? a. 51.15 Btu/hour b. 51,150... Problem 35RQ: What is the kilowatt output of an electric heater that has an ampere draw of 50 amperes if the... Problem 24RQ: What is an insulator?
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