Esco Electrical Test Flashcards
2026_2027
Expert-Verified Questions and
Answers
(With A+ Grades Guarantee)
, What is current flow? D.The flow of electrons in a circuit
What is impedance? A.Opposition to alternating current
Like charges will B.Repel each other
Any material that will readily release electrons is called: B.A conductor
The symbol for current is: B. I
Electricity can produce: D. All the above
light
heat
magnetism
The safety ground conductor is usually colored: B.Green
An electron has: B.A negative charge
Which of the following materials would be best suited for D.Silicon
use as a semi-conductor?
Which of the following meters must use internal power to A.Ohmmeter
check a load or circuit?
What would be the result if a 24 volt, 20 ohm contactor coil B.Only the control relay would operate
was wired in series with a 24 volt, 200 ohm control relay?
Three defrost heaters, each 15 ohms, are wired in parallel C. 2880
to a 120 volt power supply. How many Watts are
consumed?
When testing a capacitor with an analog or digital B.Measure low resistance then return to a high reading
ohmmeter, the meter should:
How much resistance must be placed in a 120 volt circuit A.60 ohms
to limit the current to 2 amps?
What is resistance? A.Opposition to electron flow
2026_2027
Expert-Verified Questions and
Answers
(With A+ Grades Guarantee)
, What is current flow? D.The flow of electrons in a circuit
What is impedance? A.Opposition to alternating current
Like charges will B.Repel each other
Any material that will readily release electrons is called: B.A conductor
The symbol for current is: B. I
Electricity can produce: D. All the above
light
heat
magnetism
The safety ground conductor is usually colored: B.Green
An electron has: B.A negative charge
Which of the following materials would be best suited for D.Silicon
use as a semi-conductor?
Which of the following meters must use internal power to A.Ohmmeter
check a load or circuit?
What would be the result if a 24 volt, 20 ohm contactor coil B.Only the control relay would operate
was wired in series with a 24 volt, 200 ohm control relay?
Three defrost heaters, each 15 ohms, are wired in parallel C. 2880
to a 120 volt power supply. How many Watts are
consumed?
When testing a capacitor with an analog or digital B.Measure low resistance then return to a high reading
ohmmeter, the meter should:
How much resistance must be placed in a 120 volt circuit A.60 ohms
to limit the current to 2 amps?
What is resistance? A.Opposition to electron flow
