Esco Electrical Test Questions And Answers | 100% Correct Answers |Updated Quiz

What is current flow? - Answer-D.The flow of electrons in a circuit What is impedance? - Answer-A.Opposition to alternating current Like charges will - Answer-B.Repel each other Any material that will readily release electrons is called: - Answer-B.A conductor The symbol for current is: - Answer-B. I Electricity can produce: - Answer-D. All the above light heat magnetism The safety ground conductor is usually colored: - Answer-B.Green An electron has: - Answer-B.A negative charge Which of the following materials would be best suited for use as a semi-conductor? - Answer-D.Silicon Which of the following meters must use internal power to check a load or circuit? - Answer-A.Ohmmeter What would be the result if a 24 volt, 20 ohm contactor coil was wired in series with a 24 volt, 200 ohm control relay? - Answer-B.Only the control relay would operateThree defrost heaters, each 15 ohms, are wired in parallel to a 120 volt power supply. How many Watts are consumed? - Answer-C. 2880 When testing a capacitor with an analog or digital ohmmeter, the meter should: - Answer-B.Measure low resistance then return to a high reading How much resistance must be placed in a 120 volt circuit to limit the current to 2 amps? - Answer-A.60 ohms What is resistance? - Answer-A.Opposition to electron flow In electrical wiring, a black colored wire indicates: - Answer-A. A hot conductor How many watts are used by a heater operating on 460 volts and drawing 5 amps? - Answer-D .2300 How are fuses sized? - Answer-D .Both A and B What is generally considered the maximum allowable supply voltage variation - Answer-A.5% Capacitors are rated in: - Answer-D .Both B and C