600 NEIEP Final Exam / 51 Quizzes with
Definitive Solutions/ 2025
Refer to figure, If load resistance R2 is reduced by half, what happens to the zener
diode? - Answer: Zener current will decrease
Refer to the figure, the Zener diode is designed to breakdown at 6VDC. What is
the voltage drop across resistor 1, with a constant DC supply of 10 VDC? - Answer:
4V
An elevators motor rotates at 1200 rpm at contract speed and is geared at a ratio
of 40:1. If the motor turns 40 rpm the sheave turns 1 rpm. What is the actual
speed of the drive sheave in rpms? - Answer: 30 rpm
Page 1 of 8
, Which statement is correct regarding capacitors? - Answer: Placing two captors in
parallel increases its voltage capacity
Which of the following factors determines the voltage rating of a capacitor? -
Answer: Dielectric
What is usually done to protect large capacitors during charging? - Answer: A
resistors placed in series with the capacitor.
An MOV placed around a relay coil for voltage spike suppression has shorted.
What would the effects be? - Answer: Spike suppression would be lost
Which of the following do you need to be aware of when using electrolytic
capacitors? - Answer: They may be polarity sensitive
Refer to figure, What inputs are necessary to get a low (0) on the output? -
Answer: A low (0) on input A and B
Why are bleeder resistors sometimes connected across high voltage capacitors? -
Answer: To help drain voltage when power is removed
Page 2 of 8
Definitive Solutions/ 2025
Refer to figure, If load resistance R2 is reduced by half, what happens to the zener
diode? - Answer: Zener current will decrease
Refer to the figure, the Zener diode is designed to breakdown at 6VDC. What is
the voltage drop across resistor 1, with a constant DC supply of 10 VDC? - Answer:
4V
An elevators motor rotates at 1200 rpm at contract speed and is geared at a ratio
of 40:1. If the motor turns 40 rpm the sheave turns 1 rpm. What is the actual
speed of the drive sheave in rpms? - Answer: 30 rpm
Page 1 of 8
, Which statement is correct regarding capacitors? - Answer: Placing two captors in
parallel increases its voltage capacity
Which of the following factors determines the voltage rating of a capacitor? -
Answer: Dielectric
What is usually done to protect large capacitors during charging? - Answer: A
resistors placed in series with the capacitor.
An MOV placed around a relay coil for voltage spike suppression has shorted.
What would the effects be? - Answer: Spike suppression would be lost
Which of the following do you need to be aware of when using electrolytic
capacitors? - Answer: They may be polarity sensitive
Refer to figure, What inputs are necessary to get a low (0) on the output? -
Answer: A low (0) on input A and B
Why are bleeder resistors sometimes connected across high voltage capacitors? -
Answer: To help drain voltage when power is removed
Page 2 of 8
