chris/General-Study
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 1 Activity

Initial checkin

Browse Source
This commit is contained in:
Chris
2025-05-01 13:59:40 -05:00
commit 25913552a2
93 changed files with 7311 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

92
logseq/bak/pages/G7A/2025-05-01T18_48_55.971Z.Desktop.md Normal file
View File

@ -0,0 +1,92 @@
G7A – Power supplies; schematic symbols
- [[G7A01]] (B)
What is the function of a power supply bleeder resistor?
- A. It acts as a fuse for excess voltage
- B. It discharges the filter capacitors when power is removed
- C. It removes shock hazards from the induction coils
- D. It eliminates ground loop current
--
- [[G7A02]] (C)
Which of the following components are used in a power supply filter network?
- A. Diodes
- B. Transformers and transducers
- C. Capacitors and inductors
- D. All these choices are correct
--
- [[G7A03]] (A)
Which type of rectifier circuit uses two diodes and a center-tapped transformer?
- A. Full-wave
- B. Full-wave bridge
- C. Half-wave
- D. Synchronous
--
- [[G7A04]] (A)
What is characteristic of a half-wave rectifier in a power supply?
- A. Only one diode is required
- B. The ripple frequency is twice that of a full-wave rectifier
- C. More current can be drawn from the half-wave rectifier
- D. The output voltage is two times the peak input voltage
--
- [[G7A05]] (B)
What portion of the AC cycle is converted to DC by a half-wave rectifier?
- A. 90 degrees
- B. 180 degrees
- C. 270 degrees
- D. 360 degrees
--
- [[G7A06]] (D)
What portion of the AC cycle is converted to DC by a full-wave rectifier?
- A. 90 degrees
- B. 180 degrees
- C. 270 degrees
- D. 360 degrees
--
- [[G7A07]] (A)
What is the output waveform of an unfiltered full-wave rectifier connected to a resistive load?
- A. A series of DC pulses at twice the frequency of the AC input
- B. A series of DC pulses at the same frequency as the AC input
- C. A sine wave at half the frequency of the AC input
- D. A steady DC voltage
--
- [[G7A08]] (C)
Which of the following is characteristic of a switchmode power supply as compared to a linear power supply?
- A. Faster switching time makes higher output voltage possible
- B. Fewer circuit components are required
- C. High-frequency operation allows the use of smaller components
- D. Inherently more stable
--
- [[G7A09]] (C)
Which symbol in figure G7-1 represents a field effect transistor?
- A. Symbol 2
- B. Symbol 5
- C. Symbol 1
- D. Symbol 4
--
- [[G7A10]] (D)
Which symbol in figure G7-1 represents a Zener diode?
- A. Symbol 4
- B. Symbol 1
- C. Symbol 11
- D. Symbol 5
--
- [[G7A11]] (B)
Which symbol in figure G7-1 represents an NPN junction transistor?
- A. Symbol 1
- B. Symbol 2
- C. Symbol 7
- D. Symbol 11
--
- [[G7A12]] (C)
Which symbol in Figure G7-1 represents a solid core transformer?
- A. Symbol 4
- B. Symbol 7
- C. Symbol 6
- D. Symbol 1
--
- [[G7A13]] (A)
Which symbol in Figure G7-1 represents a tapped inductor?
- A. Symbol 7
- B. Symbol 11
- C. Symbol 6
- D. Symbol 1

80
logseq/bak/pages/G7A/2025-05-01T18_49_27.571Z.Desktop.md Normal file
View File

@ -0,0 +1,80 @@
G7A – Power supplies; schematic symbols
- [[G7A01]] (B)
What is the function of a power supply bleeder resistor?
- A. It acts as a fuse for excess voltage
- B. It discharges the filter capacitors when power is removed
- C. It removes shock hazards from the induction coils
- D. It eliminates ground loop current
- [[G7A02]] (C)
Which of the following components are used in a power supply filter network?
- A. Diodes
- B. Transformers and transducers
- C. Capacitors and inductors
- D. All these choices are correct
- [[G7A03]] (A)
Which type of rectifier circuit uses two diodes and a center-tapped transformer?
- A. Full-wave
- B. Full-wave bridge
- C. Half-wave
- D. Synchronous
- [[G7A04]] (A)
What is characteristic of a half-wave rectifier in a power supply?
- A. Only one diode is required
- B. The ripple frequency is twice that of a full-wave rectifier
- C. More current can be drawn from the half-wave rectifier
- D. The output voltage is two times the peak input voltage
- [[G7A05]] (B)
What portion of the AC cycle is converted to DC by a half-wave rectifier?
- A. 90 degrees
- B. 180 degrees
- C. 270 degrees
- D. 360 degrees
- [[G7A06]] (D)
What portion of the AC cycle is converted to DC by a full-wave rectifier?
- A. 90 degrees
- B. 180 degrees
- C. 270 degrees
- D. 360 degrees
- [[G7A07]] (A)
What is the output waveform of an unfiltered full-wave rectifier connected to a resistive load?
- A. A series of DC pulses at twice the frequency of the AC input
- B. A series of DC pulses at the same frequency as the AC input
- C. A sine wave at half the frequency of the AC input
- D. A steady DC voltage
- [[G7A08]] (C)
Which of the following is characteristic of a switchmode power supply as compared to a linear power supply?
- A. Faster switching time makes higher output voltage possible
- B. Fewer circuit components are required
- C. High-frequency operation allows the use of smaller components
- D. Inherently more stable
- [[G7A09]] (C)
Which symbol in figure G7-1 represents a field effect transistor?
- A. Symbol 2
- B. Symbol 5
- C. Symbol 1
- D. Symbol 4
- [[G7A10]] (D)
Which symbol in figure G7-1 represents a Zener diode?
- A. Symbol 4
- B. Symbol 1
- C. Symbol 11
- D. Symbol 5
- [[G7A11]] (B)
Which symbol in figure G7-1 represents an NPN junction transistor?
- A. Symbol 1
- B. Symbol 2
- C. Symbol 7
- D. Symbol 11
- [[G7A12]] (C)
Which symbol in Figure G7-1 represents a solid core transformer?
- A. Symbol 4
- B. Symbol 7
- C. Symbol 6
- D. Symbol 1
- [[G7A13]] (A)
Which symbol in Figure G7-1 represents a tapped inductor?
- A. Symbol 7
- B. Symbol 11
- C. Symbol 6
- D. Symbol 1