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NEIEP 600 Final Review Exam Questions and Answers RATED A+
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NEIEP 600 Final Review Exam Questions and Answers RATED A+
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NEIEP 600 Final Review Exam Questionsand Answers RATED A+
Refer to figure 1. If the load resistance R2 is reduced by half what happens what
happens to zener diode? –ANSWER: Zener current will decrease
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 - ANSWER: 4v
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? - ANSWER: 30 rpm
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? - ANSWER: The
output will go to zero
Refer to figure 3. For the inverting op amp shown, what is the output voltage? -
ANSWER: -20 mv
Which term defines the limit of magnetic strength around an inductor even though
the current through the coil increases - ANSWER: Saturation
Which of the following describes how an SCR is turned OFF? - ANSWER: Voltage is
removed from anode to cathode
On the fourteen pin DIP IC shown in figure 4 what is the location of pin 14 - ANSWER:
Top right
A brake coil has an inductance of 4 henries. If the coil was placed into a circuit with
an operating frequency of 60hz the coil would have a resistance of: - ANSWER: 1507
ohms
The photodiode will conduct current when it detects - ANSWER: light
What does the circuit in figure 5 represent? - ANSWER: A relay timer
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 A
If a circuit has three inductors in parallel of 10, 15, and 20 henries, what is the total
inductance? - ANSWER: 4.61 henries
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