COEDAD
  • 1. In LTSpice, what command key opens the component browser?
A) F2
B) F3
C) F1
  • 2. Which component value is used for R1 in the initial RC circuit analysis?
A) 10ΚΩ
B) 220k
C) 1ΚΩ
D) 5k
  • 3. Which initial value setting is correct for the pulse source configuration?
A) 5V
B) 10V
C) 1µF
D) 0V
  • 4. What is the proper rise time setting for the pulse source?
A) 1
B) 2ns
C) 3
D) 1ns
  • 5. What is the correct duration for running the transient analysis?
A) 100ms
B) 10ms
C) 20ms
D) 5ms
  • 6. Which analysis command is used for time-domain simulation?
A) .meas
B) .op
C) .tran
D) Pulse
  • 7. What is the proper method to measure capacitor charging time?
A) None of them
B) Using cursor differences in voltage vs. time plot
C) transient analysis
  • 8. Which waveform represents correct capacitor charging behavior?
A) Exponential rise
B) An exponential decay curve.
C) Exponential rise to steady state
  • 9. What determines the RC circuit's time constant?
A) R/C
B) R x C
C) R-C
D) C x R
  • 10. What is the correct starting frequency for AC analysis?
A) 5Hz
B) 1Hz
C) 0Hz
D) -1Hz
  • 11. How many points per decade are specified for frequency analysis?
A) 100
B) 10
C) 120
D) 50
  • 12. What represents the correct stop frequency for AC analysis?
A) 1MHz
B) Low frequency
C) Highest frequency
D) 2MHz
  • 13. Which plot type correctly shows frequency response?
A) Bode plot
B) High frequency
C) gain
D) Frequency
  • 14. What defines the -3dB point in frequency response?
A) half of its maximum power.
B) Half power point (0.707 of peak amplitude)
C) Half point (0.70 of peak amplitude)
  • 15. What is the correct peak voltage for the AC source in rectifier simulation?
A) 12V
B) 220V
C) 170 V peak
D) 120V
  • 16. Which capacitor value is specified for filtering in the power supply?
A) 2200µF
B) 10μF
C) 100μF
D) 1000μF
  • 17. What is the proper diode configuration for full-wave rectification?
A) Bridge configuration with two diodes
B) Bridge configuration with four diodes
C) Bridge rectifier
  • 18. Which measurement technique correctly determines ripple voltage?
A) None of them
B) Peak-to-peak voltage measurement
C) difference between the maximum and minimm voltage
  • 19. What parameter correctly indicates power supply efficiency?
A) Input power x output power
B) Input power / output power x 100%
C) Output power / Input power × 100%
  • 20. What op-amp model is specified for the non-inverting amplifier?
A) LT1001
B) LT101
C) LM1001
D) LM741
  • 21. Which power supply configuration is correct for the op-amp?
A) 15V
B) 5V
C) ±15V
D) -15V
  • 22. What gain setting is specified for the non-inverting amplifier?
A) 12
B) 10
C) 13
D) 11
  • 23. Which input signal is correct for testing the op-amp circuit?
A) 1 V peak sine wave
B) 1V sine wave
C) All of the above
D) 2V sine wave
  • 24. What is the correct method for bandwidth measurement?
A) Bandwidth
B) Frequency at 3dB point from midband gain
C) Frequency at -3dB point from midband gain
D) Sine wave
  • 25. What is the correct input resistor value for the differential amplifier?
A) 10ΚΩ
B) 1ΚΩ
C) 120Ω
D) 20ΚΩ
  • 26. Which parameter correctly measures differential amplifier performance?
A) Low Output Impedance
B) CMRR
C) High Input Impedance
  • 27. What is the proper feedback resistor value for matched differential gain?
A) 220
B) 1ΚΩ
C) 120
D) 10ΚΩ
  • 28. Which configuration best tests common-mode rejection?
A) Apply a common-mode signal
B) difference amplifier configuration
C) Identical signals applied to both inputs
  • 29. What is the correct method for measuring differential gain?
A) Output voltage / differential input voltage
B) Apply a small differential input Vd=V-V-VdV+ -V
C) Connect the inputs
  • 30. What is the specified cutoff frequency for the second-order low-pass filter?
A) 1kHz
B) 10kHz
C) drops by -3dB
D) drops by 3dB
  • 31. Which topology is specified for the active filter implementation?
A) Sallen-Key
B) VCVS filter topology
C) Swollen-key
  • 32. What is the correct phase shift at cutoff frequency?
A) 80 degrees
B) -120 degrees
C) -90 Celsius
D) -90 degrees
  • 33. Which parameter properly indicates filter roll-off rate?
A) Filter order (n) or slope in dB/decade
B) 4 dB/decade
C) All of the above
D) -40 dB/decade
  • 34. What is the correct damping ratio for optimal filter response?
A) 0.7777
B) 0.770
C) 0707
D) 0.707
  • 35. What is the correct input voltage for the regulator circuit?
A) 5V
B) 12V
C) ±15V
D) 15V
  • 36. Which load resistance value is specified for testing?
A) 1ΚΩ
B) 100Ω
C) 2kΩ
  • 37. What is the proper output voltage specification?
A) 12V
B) 15V
C) 5V
D) 120V
  • 38. Which parameter correctly measures load regulation?
A) AVout/Alload
B) AIIoad / AVout
C) Power supply
  • 39. What is the correct method for implementing current limiting?
A) Series sense resistor with feedback
B) Parallel sense resistor with feedback
C) Power supply
  • 40. Which oscillator type is specified in the lab guide?
A) Phase-Shift Oscillator
B) Wien bridge
C) Colpitts Oscillator
D) Clap Oscillator
  • 41. What determines the correct oscillation frequency?
A) Period and frequency
B) RC time constant
C) Frequency-selective componentsi
  • 42. Which component provides proper amplitude stabilization?
A) AGC circuit with thermistor
B) Use a frequency counter
C) Amplitude stabilizer
D) Use oscilloscope to see how the output frequency changes
  • 43. What is the correct method for measuring frequency stability?
A) oscilloscope to see how the output frequency changes
B) Use a frequency counter
C) Long-term frequency drift measurement
  • 44. Which parameter indicates proper oscillator startup?
A) Exponential amplitude growth to steady state
B) Closed loop gain
C) Across the resistance
  • 45. What is the specified switching frequency?
A) 1kHz
B) 100kHz
C) 15KHz
D) 50KHz
  • 46. Which control method is correct for the buck converter?
A) Voltage-Mode Control (VMC)
B) PWM feedback control
C) negative feedback control
  • 47. What is the proper method for measuring efficiency?
A) (Pout/Pin) x 100%
B) Pout x Pin x 100%
C) (Pin/Pout) x 100%
  • 48. Which parameter correctly indicates transient response?
A) Output voltage settling time
B) Damping ration
C) Output voltage not settling time
  • 49. What is the correct inductor value for the buck converter?
A) 1000μΗ
B) 10μΗ
C) 1μΗ
D) 100μΗ
  • 50. Which analysis type properly evaluates component variations?
A) Monte Carlo
B) Tolerance Analysis
C) transient analysis
D) AC analysis
  • 51. What is the correct method for creating custom components?
A) CAD
B) Using Netlist
C) Using.subckt definition
D) Using . Meas command
  • 52. Which command generates proper performance reports?
A) .meas
B) .param
C) .tran
D) .op
  • 53. What is the correct format for exporting netlists?
A) SPICE compatible image format
B) Plain Text
C) SPICE compatible text format
  • 54. Which approach correctly implements hierarchical designs?
A) Symbol creation with subcircuits
B) Visual hierarchy
C) Top down design
D) All of the above
  • 55. What is the correct simulation resolution setting?
A) Maximum timestep = 1/100 of smallest time constant
B) Minimum timestep = 100 of smallest time constant
C) Maximum timestep = 1/100 of Highest time constant
  • 56. Which convergence setting is proper for complex circuits?
A) .options
B) gmin = 1e-9
C) min= 1-9
D) min= 1e-9
E) gmin=1e
  • 57. What is the correct method for setting initial conditions?
A) .param
B) .step
C) .TRAN
D) .ic command with node voltages
  • 58. Which parameter properly controls simulation accuracy?
A) Reltol 1e-12
B) abstol 1e-12
C) abstol
D) Reltol
  • 59. What is the correct approach for handling convergence issues?
A) Refine the mesh
B) Tighten Convergence Settings
C) Modify gmin stepping
D) Reduce increment size
  • 60. Which method correctly exports waveform data?
A) Left-click plot, export data as text
B) File Export command from the Plot Pane
C) Right-click plot, export data as text
  • 61. What is the proper format for measurement expressions?
A) .MEAS
B) Node2
C) V(node1)-V(node2)
D) node1
  • 62. Which command correctly calculates RMS values?
A) .meas tran rms RMS V(out)
B) .param
C) .tran
D) .op
  • 63. What is the correct method for frequency domain analysis?
A) .fft V(out)
B) .op
C) .tran
D) .AC
  • 64. Which approach properly analyzes power dissipation?
A) .param
B) .AC
C) .MEAS P_AVG AVG V(R1)*I(R1)
D) .tran
E) .meas avg power = avg (V(n1)*I(R1))
  • 65. What is the correct method for component labeling?
A) Press F4 or the “label net"
B) Prefix with functional description
C) Hierarchical prefix with functional description
D) Comment Text for descriptive labels and Net Name Labels/Ports
  • 66. Which approach properly documents simulation settings?
A) Add comments
B) using a text file to document
C) SPICE directives with comments
D) Rename the schematic
  • 67. What is the correct file organization structure?
A) My Documents\LTspiceXVII
B) Separate folders for each analysis type
C) Dedicated folder for each individual circuit project
  • 68. Which naming convention is proper for simulation files?
A) .measure
B) Clarity, functionality, and portability
C) ProjectName_CircuitType_Version
  • 69. What is the correct method for version control?
A) Sequential backup with date stamps
B) use the .step param command
C) External Version Control System (VCS)
  • 70. Which approach correctly verifies circuit operation?
A) Systematic, multi-analysis comparison
B) Verification vs. Validation
C) Systematic node voltage checking
  • 71. What is the proper method for identifying simulation errors?
A) Check for syntax and units
B) SPICE Error Log and the Waveform Viewer
C) Error log analysis and stepping
  • 72. Which technique correctly validates results?
A) Cross-Verification
B) Theoretical calculation comparison
  • 73. What is the correct approach for debugging convergence issues?
A) Progressive component addition
B) Systematic process
  • 74. Which method properly verifies model accuracy?
A) Comparison with datasheet specifications
B) Comparison of simulation results against unknown datasheet parameters
  • 75. What is the correct capacitor value specified for the transient analysis task?
A) 1000uF
B) 100uF
C) 1uF
Created with That Quiz — where test making and test taking are made easy for math and other subject areas.