FCCライセンス Technician 6月 2 2024 SUBELEMENT T5A SUBELEMENT T5A T5A – Current and voltage: terminology and units, conductors and insulators, alternating and direct current 1 / 12 T5A01Electrical current is measured in which of the following units? A. Volts B. Watts C. Ohms D. Amperes 2 / 12 T5A02Electrical power is measured in which of the following units? A. Volts B. Watts C. Watt-hours D. Amperes 3 / 12 T5A03What is the name for the flow of electrons in an electric circuit? A. Voltage B. Resistance C. Capacitance D. Current 4 / 12 T5A04What are the units of electrical resistance? A. Siemens B. Mhos C. Ohms D. Coulombs 5 / 12 T5A05What is the electrical term for the force that causes electron flow? A. Voltage B. Ampere-hours C. Capacitance D. Inductance 6 / 12 T5A06What is the unit of frequency? A. Hertz B. Henry C. Farad D. Tesla 7 / 12 T5A07Why are metals generally good conductors of electricity? A. They have relatively high density B. They have many free electrons C. They have many free protons D. All these choices are correct 8 / 12 T5A08Which of the following is a good electrical insulator? A. Copper B. Glass C. Aluminum D. Mercury 9 / 12 T5A09Which of the following describes alternating current? A. Current that alternates between a positive direction and zero B. Current that alternates between a negative direction and zero C. Current that alternates between positive and negative directions D. All these answers are correct 10 / 12 T5A10Which term describes the rate at which electrical energy is used? A. Resistance B. Current C. Power D. Voltage 11 / 12 T5A11What type of current flow is opposed by resistance? A. Direct current B. Alternating current C. RF current D. All these choices are correct 12 / 12 T5A12What describes the number of times per second that an alternating current makes a complete cycle? A. Pulse rate B. Speed C. Wavelength D. Frequency Your score isThe average score is 70% 0% Restart quiz Ed 0 コメント
