600 FINAL REVIEW NEIEP EXAM QUESTIONS &
DETAILED ANSWERS RATED 100% CORRECT
1. Zener current will Refer to figure 1. If the load resistance R2 is reduced by half what
happens what
decrease happens to zener diode?
2. 4v 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
3. 30 rpm 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?
4. The output Refer to figure 2. For the comparator circuit shown, what will happen to the
will go to output of the non-inverting input goes more positive than the inverting
zero input?
1/
13
, 600 FINAL REVIEW NEIEP EXAM QUESTIONS &
DETAILED ANSWERS RATED 100% CORRECT
5. -20 mv Refer to figure 3. For the inverting op amp shown, what is the output
voltage?
2/
13
DETAILED ANSWERS RATED 100% CORRECT
1. Zener current will Refer to figure 1. If the load resistance R2 is reduced by half what
happens what
decrease happens to zener diode?
2. 4v 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
3. 30 rpm 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?
4. The output Refer to figure 2. For the comparator circuit shown, what will happen to the
will go to output of the non-inverting input goes more positive than the inverting
zero input?
1/
13
, 600 FINAL REVIEW NEIEP EXAM QUESTIONS &
DETAILED ANSWERS RATED 100% CORRECT
5. -20 mv Refer to figure 3. For the inverting op amp shown, what is the output
voltage?
2/
13
