HVAC Excellence - ELECTRICITY Exam Questions and Answers 100% Pass

HVAC Excellence - ELECTRICITY Exam Questions and Answers 100% Pass Current flow is: - Correct Answer ️️ -The flow of electrons in the circuit. Impedance is: - Correct Answer ️️ -Opposition to alternating current flow. Like charges; - Correct Answer ️️ -repel each other. Any material that will readily release electrons is called; - Correct Answer ️️ -A conductor The symbol for current is; - Correct Answer ️️ -I Which of the following materials would be best suited for use as a semi-conductor? - Correct Answer ️️ -silicon The safety ground conductor is usually color coded; - Correct Answer ️️ -green or bare. An electron has; - Correct Answer ️️ -a negative charge. Resistance is: - Correct Answer ️️ -Opposition to current flow. How many watts of power are used by a heater operating at 240 volts and drawing 5 amps? - Correct Answer ️️ -1200 watts Which of the following meters must use its internal power to check a load or circuit? - Correct Answer ️️ -Ohmmeter In electrical wiring, a black colored wire in an alternating current circuit usually indicates; - Correct Answer ️️ -the hot conductor. Fuses are sized by: - Correct Answer ️️ -Volts & 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? - Correct Answer ️️ -Only the control relay would operate. Three defrost heaters, each 15 ohms are wired in parallel to a 120 volt power supply. How many watts of power will be used? - Correct Answer ️️ -2880 Watts Which of the following is generally considered to be within the maximum allowable (plus or minus) supply voltage variation? - Correct Answer ️️ -5% Capacitors are rated in - Correct Answer ️️ -Microfarads & Volts. When testing a capacitor with an analog or digital ohmmeter, the meter should; - Correct Answer ️️ -measure low resistance then return to high reading. What is the term used to describe the output side of a transformer? - Correct Answer ️️ -Secondary side. One horsepower is equal to __________ watts. - Correct Answer ️️ -746 How much resistance must be placed in a 120 volt circuit in order to limit the current to 2 amps? - Correct Answer ️️ -60 Ohms A parallel circuit contains a 18 ohm and a 9 ohm resistor. The total resistance equals; - Correct Answer ️️ -6 ohms. In a series circuit, the voltage drop across each resistance (load)