HVAC Excellence - ELECTRICITY Exam 100% Updated!

Current flow is: - ANSWERThe flow of electrons in the circuit. Impedance is: - ANSWEROpposition to alternating current flow. Like charges; - ANSWERrepel each other. Any material that will readily release electrons is called; - ANSWERA conductor The symbol for current is; - ANSWERI Which of the following materials would be best suited for use as a semi-conductor? - ANSWERsilicon The safety ground conductor is usually color coded; - ANSWERgreen or bare. An electron has; - ANSWERa negative charge. Resistance is: - ANSWEROpposition to current flow. How many watts of power are used by a heater operating at 240 volts and drawing 5 amps? - ANSWER1200 watts Which of the following meters must use its internal power to check a load or circuit? - ANSWEROhmmeter In electrical wiring, a black colored wire in an alternating current circuit usually indicates; - ANSWERthe hot conductor. Fuses are sized by: - ANSWERVolts & Amps What would be the result, if a 24 volt, 20-ohm low voltage conta ctor coil were wired in series with a 24 volt, 200-ohm control relay coil? - ANSWEROnly the control relay would operate.