NEIEP 600 FINAL REVIEW EXAM SCRIPT 2026
TEST PAPER QUESTIONS AND SOLUTIONS
GRADED A+
◉ What is usually done to protect large capacitors during charging?
Answer: A resistor is placed in series with the capacitor
◉ Which of the following do you need to be aware of when using
electrolytic capacitors? Answer: They may be polarity sensitive
◉ Why are bleeder resistors sometimes connected across high
voltage capacitors? Answer: To help drain voltage when power is
removed
◉ Which of the following statements is correct when DC is first
applied in an RC circuit? Answer: Capacitor voltage is minimum and
current is minimum
◉ An elevators motor rotates at 1200 rpm at contract speed and is
geared at a ratio of 40:1. If the motor turns 40 rpms the sheave turns
1 rpm. What is the actual speed of the drive sheave in rpms? Answer:
30 rpms
, ◉ The entire cab assembly, including the car sling, cab doors,
operator etc. weighs 3400lbs. The capacity of the elevator is
2500lbs. The car must be counterweighted at 40% of capacity plus
the weight of the car assembly. What is the weight of the
counterweight assembly Answer: 4400lbs
◉ A string of temporary lighting has fifteen 100 watt bulbs. A 15
amp breaker is the maximum size that can be used with the 14
gauge wire used in this 120 volt circuit. What is the current?
Answer: 12.5 amps
◉ What is the peak value of an AC voltage whose RMS value is 120
volts? Answer: 169,7
◉ When is CEMF greatest for an inductor in an AC circuit? Answer: a.
When current is changing rapidly
◉ What is the AC component of a DC power supply output called?
Answer: Ripple Voltage
◉ What effect does counter electromotive force (CEMF) have in an
inductive circuit? Answer: It is an opposing force to the applied
voltage which resists changes in circuit current.
TEST PAPER QUESTIONS AND SOLUTIONS
GRADED A+
◉ What is usually done to protect large capacitors during charging?
Answer: A resistor is placed in series with the capacitor
◉ Which of the following do you need to be aware of when using
electrolytic capacitors? Answer: They may be polarity sensitive
◉ Why are bleeder resistors sometimes connected across high
voltage capacitors? Answer: To help drain voltage when power is
removed
◉ Which of the following statements is correct when DC is first
applied in an RC circuit? Answer: Capacitor voltage is minimum and
current is minimum
◉ An elevators motor rotates at 1200 rpm at contract speed and is
geared at a ratio of 40:1. If the motor turns 40 rpms the sheave turns
1 rpm. What is the actual speed of the drive sheave in rpms? Answer:
30 rpms
, ◉ The entire cab assembly, including the car sling, cab doors,
operator etc. weighs 3400lbs. The capacity of the elevator is
2500lbs. The car must be counterweighted at 40% of capacity plus
the weight of the car assembly. What is the weight of the
counterweight assembly Answer: 4400lbs
◉ A string of temporary lighting has fifteen 100 watt bulbs. A 15
amp breaker is the maximum size that can be used with the 14
gauge wire used in this 120 volt circuit. What is the current?
Answer: 12.5 amps
◉ What is the peak value of an AC voltage whose RMS value is 120
volts? Answer: 169,7
◉ When is CEMF greatest for an inductor in an AC circuit? Answer: a.
When current is changing rapidly
◉ What is the AC component of a DC power supply output called?
Answer: Ripple Voltage
◉ What effect does counter electromotive force (CEMF) have in an
inductive circuit? Answer: It is an opposing force to the applied
voltage which resists changes in circuit current.
