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Electronics Engineering Review Materials: Section 2 Module 17 | ECE Board Exam

Electronics Review Materials: Section 2 Module 17

This is the Section 2 Module 17 of the compiled Electronics Review Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and the Internet. This particular reviewer in Electronics Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.

Electronics Engineering Reviewers: Section 2 Module 17

Question Answer
1. Ultra fast and long range wireless that connects homes and businesses where there is no cable connection available WiMax
2. To measure spin electronics Spinometer
3. Most common analogue meter D’arsonval
4. Measures incident wave and reflected waves Reflectometer
5. Movements of robotic arm: 1. Cartesian, 2. Polar, 3. Cylindrical, 4. Articulated 1,2,3,4
6. Two most popular RF oscillator Colpitts and Hartley
7. Maximum efficiency of transformer Copper loss equals constant loss
8. Photovoltaic silicon cell 0.6
9. Ripple rejection of three-terminal regulator 0.1%
10. Most popular thyristor SCR
11. Firing angle of SCR for power density 95%
12. Large transformer efficiency 95%
13. “bang bang” control On-Off
14. Equivalent open resistance; open voltage circuit Thevenin’s law
15. Arithmetic operation more negative to the capacity of the output register Underflow
16. Arithmetic operation more than the capacity of the output register Overflow
17. Difference of measured output over desired output Error
18. Permanent magnet current-carrying coil Permanent magnet moving coil instrument
19. Ultrasonic welding frequency 10-75 kHz
20. Instrument for electrically charged bodies Electrostatic instrument
21. Greater noise resistance compared to RTL DTL
22. What will happen to the eddy current loss if load of transformer increases Nothing will happen
23. Rating of transformer if zero efficiency No load
24. Invented computer that uses binary numbers and stores information John Van Neumann
25. Computer that connects the user’s computer system to the internet Server
26. Maintains physical position for motor control Servo motor
27. Parameter that opposes the magnetic flux Reluctance
28. Element for CRAY 1 supercomputer Gallium arsenide
29. 400Hz, AF, the induction forms a: Toroidal
30. Arc welding current 50-450 A
31. Fixed negative voltage regulator 79 XX
32. Fixed positive voltage regulator 78 XX
33. Generates noise for testing purposes Noise generator
34. To withstand noise Noise immunity
35. Most costly Hydraulic
36. Converts binary to ASCII Code converter
37. Elements with 4 valence electrons Elemental semiconductor
38. Rapidly flashing logic probe indicates: Rapidly changing logic activity
39. Air in dielectric Has low loss
40. Thyristor is also known as: Gas-filled triode
41. Maxwell’s bridge measures accurately Medium inductances
42. In constructing transformers, primary and secondary windings Tight magnetic coils
43. Copper material of primary winding Almost equal to the secondary
44. Saturable reactor Magnetic amplifier
45. Small dc current cause reactance of a large ac winding Saturable reactor
46. Dynamometer that measures high current Current transformer
47. Instrument for electromagnetic induction Induction instrument
48. Instrument for fixed coil to a soft iron Moving magnet instrument
49. 4th economic key Information
50. Step-recovery diode Charge-storage diode
51. Robot “hand” Gripper
52. Intervals for automated welding 5
53. Unsaturated logic gate HTL
54. Advantage of magnetic disk to magnetic tape Stores data rapidly
55. Equivalent voltage for voltage sources w/ series resistance parallel to each other Millman’s theorem
56. Total resistance of resistors in series Greater than the highest resistance
57. Inductance and Q of inductor Hay bridge
58. Volume control for stereo compact disk player Audio-tape potentiometer
59. “busing” for pulse generator, switching circuits Tri-state buffer
60. For op-amps to be used as buffer Vout=Vin
61. Dielectric in oscilloscope Electrostatic deflection
62. Used for oscilloscope deflection Electrostatic deflection
63. Playback robots with continuous path control Walk-through programming
64. Damping for ammeter Eddy current damping
65. Common to oscillator, operates in negative reverse breakdown region Tunnel diode
66. Three state buffer from 0-1 output OE is set to logic 1
67. In TTL circuits, unusable gate in logic circuit Force the load to HIGH
68. Main program for operating systems Kernel
69. Icon used for display Extension
70. Circuit for very low resistances Kelvin double circuit
71. MOSFET input impedance Extremely high
72. Crowbar circuit Has an AC overvoltage protection
73. Two conditional state Digital electronics
74. Sample circuit in voltage regulator Voltage divider network
75. Change in memory EPROM
76. Edge timing on multiple clock inputs Clock skew
77. Similar on the primary and secondary windings Voltage per turn-ampere turns
78. Largest power dissipating devices Water cooling
79. Coulomb of charge of electrons on a given point every second 1 ampere
80. Distribution of electrons on the orbital of an atom Electron configuration
81. Period of phase 1/360 of a cycle
82. NPN transistor All of the above (RF amplifier, audio amplifier, switching circuits)
83. Most efficient voltage regulator, high current high voltage applications Switching regulator
84. At low frequency, transformer works poorly because: Magnetizing current will be very high
85. Air gaps in transformer core Increases the magnetizing current
86. Torque remains constant as load changes Torque control
87. Weak signal amplifier, most important factor Noise figure
88. Which describes an Armstrong oscillator From the output to the input through the transformer
89. Internal clamping diode on the input of the logic circuit To minimize the negative ringing effect
90. Transmission system of robots, constant-gear ratio Chain drives
91. Linear electronic voltage regulator Regulator in which the conductor in the control varies in direct proportion to voltage or load current
92. Moving iron ac ammeter Different number of operating coils
93. Tapped coil in a tuned circuit Hartley oscillator
94. Disadvantage of mercury cells and batteries Destructive to the environment

Complete List of Section 2 Modules in Electronics (Q&A)

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