ERSC 1P94 EMERGENCY RESPONSE AND
SAFETY TEST PAPER QUESTIONS AND
SOLUTIONS VERIFIED ANSWERS
●● 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
●● What is resistance?
Answer: A.Opposition to electron flow
●● In electrical wiring, a black colored wire indicates:
Answer: A. A hot conductor
●● How many watts are used by a heater operating on 460 volts and
drawing 5 amps?
Answer: D .2300
●● How are fuses sized?
Answer: D .Both A and B
●● What is generally considered the maximum allowable supply voltage
variation
SAFETY TEST PAPER QUESTIONS AND
SOLUTIONS VERIFIED ANSWERS
●● 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
●● What is resistance?
Answer: A.Opposition to electron flow
●● In electrical wiring, a black colored wire indicates:
Answer: A. A hot conductor
●● How many watts are used by a heater operating on 460 volts and
drawing 5 amps?
Answer: D .2300
●● How are fuses sized?
Answer: D .Both A and B
●● What is generally considered the maximum allowable supply voltage
variation
