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1. Refer to figure 1. If the load resistance R2 is reduced by Zener current will decrease
half what happens what happens to zener diode?
2. Refer to figure 1. The zener diode is designed to break- 4v
down at 6VDC what is the voltage drop across R1 with
a constant DC supply of 10VDC
3. An elevators motor rotates at 1200 rpm at contract 30 rpm
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. Refer to figure 2. For the comparator circuit shown, The output will go to zero
what will happen to the output of the non-inverting
input goes more positive than the inverting input?
testing different cognitive abilities, analytical skills, and subject-specific knowledge. In this essay, we will explore the nature of exams in business, law, and
mathematics, their format, and how they evaluate
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, 600 Final Review Neiep
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5. Refer to figure 3. For the inverting op amp shown, what -20 mv
is the output voltage?
6. Which term defines the limit of magnetic strength Saturation
around an inductor even though the current through
the coil increases
7. Which of the following describes how an SCR is turned Voltage is removed from
OFF? anode to cathode
8. On the fourteen pin DIP IC shown in figure 4 what is Top right
the location of pin 14
9. A brake coil has an inductance of 4 henries. If the coil 1507 ohms
was placed into a circuit with an operating frequency
of 60hz the coil would have a resistance of:
10. The photodiode will conduct current when it detects light
11. What does the circuit in figure 5 represent? A relay timer testing different cognitive
abilities, analytical skills, and subject-specific
knowledge. In this essay, we will explore the
nature of exams in business, law, and
mathematics, their format, and how they evaluate
2/8