Esco Electrical Test Questions with Complete Solutions 100% Verified 2024/2025 What is current flow? - Correct Answer D.The flow of electrons in a circuit What is impedance? - Correct Answer A.Opposition to alternating current Like charges will - Correct Answer B.Repel each other Any material that will readily release electrons is called: - Correct Answer B.A conductor
The symbol for current is: - Correct Answer B. I
Electricity can produce: - Correct Answer D. All the above
light heat magnetism
The safety ground conductor is usually colored: - Correct Answer B.Green
An electron has: - Correct Answer B.A negative charge
Which of the following materials would be best suited for use as a semi-conductor? - Correct Answer D.Silicon Which of the following meters must use internal power to check a load or circuit? - Correct 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? - Correct Answer B.Only the control relay would operate 1 / 2
Three defrost heaters, each 15 ohms, are wired in parallel to a 120 volt power supply. How many Watts are consumed? - Correct Answer C. 2880 When testing a capacitor with an analog or digital ohmmeter, the meter should: - Correct 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? - Correct Answer A.60 ohms What is resistance? - Correct Answer A.Opposition to electron flow In electrical wiring, a black colored wire indicates: - Correct Answer A. A hot conductor How many watts are used by a heater operating on 460 volts and drawing 5 amps? - Correct Answer
D .2300
How are fuses sized? - Correct Answer D .Both A and B What is generally considered the maximum allowable supply voltage variation - Correct Answer A.5%
Capacitors are rated in: - Correct Answer D .Both B and C
What is the term used to describe the output side of a transformer? - Correct Answer D .Secondary side One horsepower is equal to ______ watts. - Correct Answer B. 746 A parallel circuit contains an 18 ohm and a 9 ohm resistor. What is the total resistance? - Correct Answer A.6 ohms In a series circuit, the voltage drop across each load will: - Correct Answer D .Add up to equal the source voltage
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