NEIEP 600 FINAL EXAM (ACTUAL 2025)
REVIEWED
Zener current will decrease - <<<Answers>>>Refer to figure
1. If the load resistance R2 is reduced by half what happens
what happens to zener diode?
4v - <<<Answers>>>Refer to figure 1. The zener diode is
designed to breakdown at 6VDC what is the voltage drop
across R1 with a constant DC supply of 10VDC
30 rpm - <<<Answers>>>An elevators motor rotates at 1200
rpm at contract speed and is geard 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?
Placing a capacitor and resistor in parallel with the load -
<<<Answers>>>How can pitting due to arching be reduced
on relay contact surfaces?
Capacitor voltage is minimum and current is maximum -
<<<Answers>>>Which of the following statements is correct
when DC is first applied in an RC circuit?
, Voltage spikes - <<<Answers>>>In elevator systems, what do
noise suppression capacitors help reduce?
2-50uf/300VDC capacitors in parallel - <<<Answers>>>What
combination of capacitors could be used to replace a
100uf/250 VDC capacitor?
The base-emitter junction must be forward biased -
<<<Answers>>>For a NPN transistor to be properly biased,
which of the following must be true?
When current is changing rapidly - <<<Answers>>>When is
CEMF greatest for an inductor is an AC circuit?
The anode is 0.7 volts higher than the cathode -
<<<Answers>>>Which of the following statements is correct
about a forward biased silicon diode?
4 - <<<Answers>>>How many rectifier diodes are required to
make a full wave bridge rectifier?
The output will go to zero - <<<Answers>>>Refer to figure 2.
For the comparator circuit shown, what will happen to the
output of the non-inverting input goes more positive than the
inverting input?
REVIEWED
Zener current will decrease - <<<Answers>>>Refer to figure
1. If the load resistance R2 is reduced by half what happens
what happens to zener diode?
4v - <<<Answers>>>Refer to figure 1. The zener diode is
designed to breakdown at 6VDC what is the voltage drop
across R1 with a constant DC supply of 10VDC
30 rpm - <<<Answers>>>An elevators motor rotates at 1200
rpm at contract speed and is geard 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?
Placing a capacitor and resistor in parallel with the load -
<<<Answers>>>How can pitting due to arching be reduced
on relay contact surfaces?
Capacitor voltage is minimum and current is maximum -
<<<Answers>>>Which of the following statements is correct
when DC is first applied in an RC circuit?
, Voltage spikes - <<<Answers>>>In elevator systems, what do
noise suppression capacitors help reduce?
2-50uf/300VDC capacitors in parallel - <<<Answers>>>What
combination of capacitors could be used to replace a
100uf/250 VDC capacitor?
The base-emitter junction must be forward biased -
<<<Answers>>>For a NPN transistor to be properly biased,
which of the following must be true?
When current is changing rapidly - <<<Answers>>>When is
CEMF greatest for an inductor is an AC circuit?
The anode is 0.7 volts higher than the cathode -
<<<Answers>>>Which of the following statements is correct
about a forward biased silicon diode?
4 - <<<Answers>>>How many rectifier diodes are required to
make a full wave bridge rectifier?
The output will go to zero - <<<Answers>>>Refer to figure 2.
For the comparator circuit shown, what will happen to the
output of the non-inverting input goes more positive than the
inverting input?
