ESCO ELECTRICAL CERTIFICATION EXAM
ACTUAL EXAM COMPLETE ACCURATE EXAM
QUESTIONS WITH DETAILED VERIFIED ANSWERS
(100% CORRECT ANSWERS) /ALREADY GRADED A+
D.The flow of electrons in a circuit - ANSWER What is current flow?
A.Opposition to alternating current - ANSWER What is impedance?
B.Repel each other - ANSWER Like charges will
B.A conductor - ANSWER Any material that will readily release electrons is called:
B. I - ANSWER The symbol for current is:
D. All the above
light
heat
magnetism - ANSWER Electricity can produce:
B.Green - ANSWER The safety ground conductor is usually colored:
B.A negative charge - ANSWER An electron has:
D.Silicon - ANSWER Which of the following materials would be best suited for use as a
semi-conductor?
A.Ohmmeter - ANSWER Which of the following meters must use internal power to
check a load or circuit?
B.Only the control relay would operate - ANSWER 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?
C. 2880 - ANSWER Three defrost heaters, each 15 ohms, are wired in parallel to a 120
volt power supply. How many Watts are consumed?
B.Measure low resistance then return to a high reading - ANSWER When testing a
capacitor with an analog or digital ohmmeter, the meter should:
A.60 ohms - ANSWER How much resistance must be placed in a 120 volt circuit to limit
the current to 2 amps?
, A.Opposition to electron flow - ANSWER What is resistance?
A. A hot conductor - ANSWER In electrical wiring, a black colored wire indicates:
D .2300 - ANSWER How many watts are used by a heater operating on 460 volts and
drawing 5 amps?
D .Both A and B - ANSWER How are fuses sized?
A.5% - ANSWER What is generally considered the maximum allowable supply voltage
variation
D .Both B and C - ANSWER Capacitors are rated in:
D .Secondary side - ANSWER What is the term used to describe the output side of a
transformer?
B. 746 - ANSWER One horsepower is equal to ______ watts.
A.6 ohms - ANSWER A parallel circuit contains an 18 ohm and a 9 ohm resistor. What
is the total resistance?
D .Add up to equal the source voltage - ANSWER In a series circuit, the voltage drop
across each load will:
c .2100 watts - ANSWER Which of the following is equal to 2.1kW?
D .The capacitance of the a capacitor - ANSWER A capacitor analyzer is designed to
check:
A.Transducer - ANSWER On an electronic oil safety switch, what changes the pressure
signal to an electrical signal?
A.Three supply lines - ANSWER A three phase load requires a minimum of
D .Provide proper airflow under various conditions - ANSWER An electronically
commutated motor (ECM) is designed to:
A.E divided by I - ANSWER Resistance can be calculated by:
D .Less than the smallest resistance - ANSWER The total resistance in a parallel circuit
will be:
B.Current flow will increase when voltage increases - ANSWER Which of the following
statements about current is true?
ACTUAL EXAM COMPLETE ACCURATE EXAM
QUESTIONS WITH DETAILED VERIFIED ANSWERS
(100% CORRECT ANSWERS) /ALREADY GRADED A+
D.The flow of electrons in a circuit - ANSWER What is current flow?
A.Opposition to alternating current - ANSWER What is impedance?
B.Repel each other - ANSWER Like charges will
B.A conductor - ANSWER Any material that will readily release electrons is called:
B. I - ANSWER The symbol for current is:
D. All the above
light
heat
magnetism - ANSWER Electricity can produce:
B.Green - ANSWER The safety ground conductor is usually colored:
B.A negative charge - ANSWER An electron has:
D.Silicon - ANSWER Which of the following materials would be best suited for use as a
semi-conductor?
A.Ohmmeter - ANSWER Which of the following meters must use internal power to
check a load or circuit?
B.Only the control relay would operate - ANSWER 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?
C. 2880 - ANSWER Three defrost heaters, each 15 ohms, are wired in parallel to a 120
volt power supply. How many Watts are consumed?
B.Measure low resistance then return to a high reading - ANSWER When testing a
capacitor with an analog or digital ohmmeter, the meter should:
A.60 ohms - ANSWER How much resistance must be placed in a 120 volt circuit to limit
the current to 2 amps?
, A.Opposition to electron flow - ANSWER What is resistance?
A. A hot conductor - ANSWER In electrical wiring, a black colored wire indicates:
D .2300 - ANSWER How many watts are used by a heater operating on 460 volts and
drawing 5 amps?
D .Both A and B - ANSWER How are fuses sized?
A.5% - ANSWER What is generally considered the maximum allowable supply voltage
variation
D .Both B and C - ANSWER Capacitors are rated in:
D .Secondary side - ANSWER What is the term used to describe the output side of a
transformer?
B. 746 - ANSWER One horsepower is equal to ______ watts.
A.6 ohms - ANSWER A parallel circuit contains an 18 ohm and a 9 ohm resistor. What
is the total resistance?
D .Add up to equal the source voltage - ANSWER In a series circuit, the voltage drop
across each load will:
c .2100 watts - ANSWER Which of the following is equal to 2.1kW?
D .The capacitance of the a capacitor - ANSWER A capacitor analyzer is designed to
check:
A.Transducer - ANSWER On an electronic oil safety switch, what changes the pressure
signal to an electrical signal?
A.Three supply lines - ANSWER A three phase load requires a minimum of
D .Provide proper airflow under various conditions - ANSWER An electronically
commutated motor (ECM) is designed to:
A.E divided by I - ANSWER Resistance can be calculated by:
D .Less than the smallest resistance - ANSWER The total resistance in a parallel circuit
will be:
B.Current flow will increase when voltage increases - ANSWER Which of the following
statements about current is true?
