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C475 UPDATED SCRIPT 2026 PRACTICE SOLUTIONS GRADED A, Exams of Nursing

Liberty University (LU)Nursing

C475 UPDATED SCRIPT 2026 PRACTICE SOLUTIONS GRADED A

Typology: Exams

2025/2026

Available from 02/13/2026

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C475 UPDATED SCRIPT 2026 PRACTICE
SOLUTIONS GRADED A+
โ— 4v. Answer: 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
โ— 30 rpm. Answer: 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?
โ— The output will go to zero. Answer: 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?
โ— -20 mv. Answer: Refer to figure 3. For the inverting op amp shown,
what is the output voltage?
โ— Saturation. Answer: Which term defines the limit of magnetic strength
around an inductor even though the current through the coil increases
โ— Voltage is removed from anode to cathode. Answer: Which of the
following describes how an SCR is turned OFF?
pf3
pf4
pf5

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C475 UPDATED SCRIPT 2026 PRACTICE

SOLUTIONS GRADED A+

โ— 4v. Answer: 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 โ— 30 rpm. Answer: 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? โ— The output will go to zero. Answer: 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? โ— - 20 mv. Answer: Refer to figure 3. For the inverting op amp shown, what is the output voltage? โ— Saturation. Answer: Which term defines the limit of magnetic strength around an inductor even though the current through the coil increases โ— Voltage is removed from anode to cathode. Answer: Which of the following describes how an SCR is turned OFF?

โ— Top right. Answer: On the fourteen pin DIP IC shown in figure 4 what is the location of pin 14 โ— 1507 ohms. Answer: 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: โ— light. Answer: The photodiode will conduct current when it detects โ— A relay timer. Answer: What does the circuit in figure 5 represent? โ— 12.5 A. Answer: 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? โ— 4.61 henries. Answer: If a circuit has three inductors in parallel of 10, 15, and 20 henries, what is the total inductance? โ— LED. Answer: What does the symbol in figure 6 represent? โ— A .7V drop from base-to-emitter is an indication of a good junction. Answer: Which of the following statements is correct when testing transistors?

โ— A resistor is placed in series with the capacitor. Answer: What is usually done to protect large capacitors during charging? โ— Excessive current in the coil circuit. Answer: An MOV placed around a relay coil for voltage spike suppression has shorted. What would the effects be? โ— They may be polarity sensitive. Answer: Which of the following do you need to be aware of when using electrolytic capacitors? โ— A low (0) on input A and a high (1) on input B. Answer: Refer to figure 7. What inputs are necessary to get a low (0) on the output? โ— To help drain voltage when power is removed. Answer: Why are bleeder resistors sometimes connected across high voltage capacitors? โ— 350uf/150VDC. Answer: What is the total capacitance and the maximum applied voltage for the circuit in figure 8? โ— Ripple voltage. Answer: What is the AC component of a DC power supply output called? โ— A high (1) on input A and B. Answer: Refer to figure 9. What inputs are necessary to get a high (1) on the output?

โ— 0.3 seconds. Answer: What is the time constant for a circuit with 150 K ohms and 2 microfarad capacitor? (TC = R x C) โ— 1.5 seconds. Answer: How long will it take for this capacitor to be considered fully charged? โ— 0.3. Answer: The voltage required to cause conduction across the junction in a germanium diode is? โ— 3k ohms. Answer: A 1.5 volt 8 milliamp light emitting diode needs to be operated from a 24VDC circuit. What series resistance is required? โ— Remove power and wear a grounded wrist strap. Answer: When removing, installing and handling solid state circuit boards what precautions should be taken? โ— 169.7 VAC. Answer: What is the peak value of an AC voltage whose RMS value is 120 volts? โ— They operate more accurately over a greater current and voltage range. Answer: Which of the following statements is correct as to why DC power supply series regulators are better than shunt regulators?

โ— The base-emitter junction must be forward biased. Answer: For a NPN transistor to be properly biased, which of the following must be true? โ— When current is changing rapidly. Answer: When is CEMF greatest for an inductor is an AC circuit? โ— The anode is 0.7 volts higher than the cathode. Answer: Which of the following statements is correct about a forward biased silicon diode? โ— 4. Answer: How many rectifier diodes are required to make a full wave bridge rectifier? โ— Anode positive, cathode negative, gate pulse positive. Answer: Which of the following statements is correct for properly biasing an SCR to turn ON? โ— It is an opposing force to the applied voltage which resists changes in circuit current. Answer: What effect does counter electromotive force (CEMF) have in an inductive circuit? โ—