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This study guide provides a series of multiple-choice questions and answers focused on electronics circuit analysis and troubleshooting. it covers topics such as voltage drops across resistors, current calculations, power dissipation, rc time constants, filter configurations, and transistor configurations. The questions test understanding of fundamental electronic principles and problem-solving skills. This resource is valuable for students preparing for the associate cet exam or similar electronics assessments.
Typology: Exams
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An open is found in the series connected load of the transistor amplifier circuit as shown. If a voltmeter were connected from the open side of the resistor ( top point of the open as shown ) to ground , what will be the reading?
A. 0 volts
B. - 12 vdc
C. Half of +Vcc
D. None of the above โโB. - 12 vdc
What is the voltage drop across the 2000 ohm resistor as shown in the amplifier?
A. 7.5 vdc
B. 8.0 vdc
C. 9.0 vdc
D. None of the above โโB. 8.0 vdc
If there is NO open in the circuit, what is the voltage across the 3000 ohm emitter resistor as shown above?
A. .2 amps
B. 2 amps
C. 5 amps
D. 50 amps โโB. 2 amps
In the circuit above, what is the power dissipated in the resistor?
A. 6 watts
B. 12 watts
C. 2 watts
D. 24 watts โโD. 24 watts
If the current drain from the battery is 4 mA, what resistance is the rheostat in the drawing?
A. 1.0 kohms
B. 2.5 kohms
C. 5.0 kohms
D. 10 kohms โโB. 2.5 kohms
In the circuit above how much current is flowing in R2?
The circuit above will require how many RC time constants to charge the capacitor to 63% of the applied voltage?
What frequency will the parallel LC circuit below be resonant to?
A. 100 MHz
B. 159 Hz
C. 6.28 MHz
D. 1590 KHz โโB. 159 Hz
Which formula is used to calculate reactance in the following schematic?
B. Low pass L
C. Low pass T
D. High pass T โโC. Low pass T
What is the combined reactance of the two capacitors in the series in the drawing above?
A. Approximately 1,198 ohms
B. Approximately 265 ohms
C. Approximately 24 ohms
D. Approximately .00377 ohms โโA. Approximately 1,198 ohms
The filter configuration shown is commonly called:
A. An "L" filter
B. A "PI" filter
C. An LCL filter
D. A CLC filter โโB. A "PI" filter
The sine wave shown above is at what frequency?
A. 500 KHz
B. 50 KHz
C. 5 KHz
D. 500 Hz โโD. 500 Hz
Which of the Germanium diodes below will conduct , given the voltages applied?
D. An active detector โโD. An active detector
In the drawing above, what voltage is present at point A?
The output (A) of the regulator circuit above should be about:
In the circuit above, to reproduce the square wave input more faithfully at the output:
A. Decrease the value of the resistor
B. Lower the frequency of the square wave
C. Decrease the value of the capacitor
D. Increase the value of the resistor โโD. Increase the value of the resistor
In the circuit above, what voltage would be expected at point A if 117 volt AC were applied?
In the circuit above, what voltage is expected across the secondary of the T1 transformer is the circuit is connected to 117 V AC?
A. Mini UHF
B. PL-
C. BNC
D. N โโC. BNC
If A is low and B is high and C is low and D is high, what is the output level at E?
A. Low
B. High
C. Floating
D. Cannot be determined โโB. High
Which of these gates is a OR?
In the circuit above, with SW 1 and SW2 open, the output will be:
A. High
B. Low
C. Floating
D. Approximately 2.5V โโA. High
