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Esco Electrical EXAM TESTBANK ALL
QUESTIONS AND CORRECT ANSWERS
LATEST UPDATE THIS YEAR
QUESTION: Electricity can produce: - ANSWER-D. All the above
light
heat
magnetism
QUESTION: The safety ground conductor is usually colored: - ANSWER-B.Green
QUESTION: An electron has: - ANSWER-B.A negative charge
QUESTION: Which of the following materials would be best suited for use as a semi-conductor?
- ANSWER-D.Silicon
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, Page 2 of 17
QUESTION: Which of the following meters must use internal power to check a load or circuit? -
ANSWER-A.Ohmmeter
QUESTION: 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 operate
QUESTION: Three defrost heaters, each 15 ohms, are wired in parallel to a 120 volt power
supply. How many Watts are consumed? - ANSWER-C. 2880
QUESTION: When testing a capacitor with an analog or digital ohmmeter, the meter should: -
ANSWER-B.Measure low resistance then return to a high reading
QUESTION: How much resistance must be placed in a 120 volt circuit to limit the current to 2
amps? - ANSWER-A.60 ohms
Q; What is current flow? - ANSWER-D.The flow of electrons in a circuit
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QUESTION: What is impedance? - ANSWER-A.Opposition to alternating current
QUESTION: Like charges will - ANSWER-B.Repel each other
QUESTION: Any material that will readily release electrons is called: - ANSWER-B.A conductor
QUESTION: The symbol for current is: - ANSWER-B. I
QUESTION: What is resistance? - ANSWER-A.Opposition to electron flow
QUESTION: In electrical wiring, a black colored wire indicates: - ANSWER-A. A hot conductor
QUESTION: How many watts are used by a heater operating on 460 volts and drawing 5 amps? -
ANSWER-D .2300
QUESTION: How are fuses sized? - ANSWER-D .Both A and B
3
Esco Electrical EXAM TESTBANK ALL
QUESTIONS AND CORRECT ANSWERS
LATEST UPDATE THIS YEAR
QUESTION: Electricity can produce: - ANSWER-D. All the above
light
heat
magnetism
QUESTION: The safety ground conductor is usually colored: - ANSWER-B.Green
QUESTION: An electron has: - ANSWER-B.A negative charge
QUESTION: Which of the following materials would be best suited for use as a semi-conductor?
- ANSWER-D.Silicon
1
, Page 2 of 17
QUESTION: Which of the following meters must use internal power to check a load or circuit? -
ANSWER-A.Ohmmeter
QUESTION: 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 operate
QUESTION: Three defrost heaters, each 15 ohms, are wired in parallel to a 120 volt power
supply. How many Watts are consumed? - ANSWER-C. 2880
QUESTION: When testing a capacitor with an analog or digital ohmmeter, the meter should: -
ANSWER-B.Measure low resistance then return to a high reading
QUESTION: How much resistance must be placed in a 120 volt circuit to limit the current to 2
amps? - ANSWER-A.60 ohms
Q; What is current flow? - ANSWER-D.The flow of electrons in a circuit
2
, Page 3 of 17
QUESTION: What is impedance? - ANSWER-A.Opposition to alternating current
QUESTION: Like charges will - ANSWER-B.Repel each other
QUESTION: Any material that will readily release electrons is called: - ANSWER-B.A conductor
QUESTION: The symbol for current is: - ANSWER-B. I
QUESTION: What is resistance? - ANSWER-A.Opposition to electron flow
QUESTION: In electrical wiring, a black colored wire indicates: - ANSWER-A. A hot conductor
QUESTION: How many watts are used by a heater operating on 460 volts and drawing 5 amps? -
ANSWER-D .2300
QUESTION: How are fuses sized? - ANSWER-D .Both A and B
3
