ESCO Electrical Test | Questions and Verified Answers | 100%
Correct | Grade A+
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 operate
Three 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
Correct | Grade A+
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 operate
Three 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
