1. Ammeters should be connected ________ with the circuit being tested.
Answer
Correct Answer:
In series
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2. What is the temperature coefficient of resistance for a thermistor?
Answer
Correct Answer:
Negative
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3. What does thermal stability refer to?
Answer
Correct Answer:
The ability of a circuit to maintain stable characteristics in spite of increased temperature.
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4. What is the definition of a terminal?
Answer
Correct Answer:
Point at which electrical connections are made
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5. What is the meaning of "Terminal"?
Answer
Correct Answer:
Point at which electrical connections are made.
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6. What does the metric prefix "tera" represent?
Answer
Correct Answer:
1012
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7. What does the temperature coefficient of frequency represent?
Answer
Correct Answer:
Rate at which frequency changes with temperature.
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8. What is a tantalum capacitor?
Answer
Correct Answer:
Electrolytic capacitor having a tantalum foil anode.
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9. In a series circuit, what path does the current follow?
Answer
Correct Answer:
Through the circuit
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10. In a series circuit, what components are connected end to end?
Answer
Correct Answer:
All of the components
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11. What is a semiconductor?
Answer
Correct Answer:
An element which is neither a good conductor nor a good insulator, but rather lies somewhere between the two.
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12. Which of the following is not a semiconductor?
Answer
Correct Answer:
Carbon
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13. What is the gate bias for a field effect transistor called?
Answer
Correct Answer:
Self biasing
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14. What is a secondary cell?
Answer
Correct Answer:
Electrolytic cell used to store electricity
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15. What is the secondary winding of a transformer?
Answer
Correct Answer:
Winding that is connected to a load.
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16. What is a Schottky diode?
Answer
Correct Answer:
A high speed diode that has very little junction capacitance.
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17. What is the output of a Schmitt trigger circuit?
Answer
Correct Answer:
Square wave
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18. What is a schematic diagram?
Answer
Correct Answer:
A diagram of an electrical or electronic circuit with the components represented by their symbols.
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19. What is the name of the waveform that rises from zero to maximum value linearly, drops back to zero and repeats?
Answer
Correct Answer:
Saw Tooth Wave
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20. What is the name for a waveform that repeats itself?
Answer
Correct Answer:
Repeating waveform
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21. What is a rectifier?
Answer
Correct Answer:
A diode circuit that converts alternating current into pulsating direct current.
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22. What is the main function of a rectifier?
Answer
Correct Answer:
Converts alternating current into pulsating direct current.
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23. What is rectification?
Answer
Correct Answer:
The process that converts alternating current to direct current.
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24. What is the other name for a Rectangular wave?
Answer
Correct Answer:
Pulse wave
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25. What is a repeating wave that only operates between two levels or values called?
Answer
Correct Answer:
Rectangular wave
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26. What are the straight-line axes of a rectangular coordinate system?
Answer
Correct Answer:
Perpendicular
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27. What is the name of a coordinate system whose straight-line axes or coordinate planes are perpendicular?
Answer
Correct Answer:
Rectangular coordinate system
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28. Recombination is the process by which an electron gives up energy to fall into a hole.
Answer
Correct Answer:
True
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29. What does recombination refer to in terms of electrons?
Answer
Correct Answer:
The process by which a conduction band electron gives up energy and falls into a valence band hole.
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30. What is a receiver?
Answer
Correct Answer:
Unit or piece of equipment used to receive information.
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31. What is the power value in "volt amps" obtained from the product of source voltage and source current in a reactive circuit?
Answer
Correct Answer:
Reactive power
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32. What is the other name of reactive power?
Answer
Correct Answer:
Imaginary power
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33. What is the symbol for Reactance?
Answer
Correct Answer:
X
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34. What does the symbol "X" represent?
Answer
Correct Answer:
Reactance
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35. What is the time constant of an RC circuit?
Answer
Correct Answer:
Product of resistance and capacitance in seconds
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36. What does the acronym "radar" stand for?
Answer
Correct Answer:
Radio detection and ranging
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37. What is the acronym for "radio detection and ranging"?
Answer
Correct Answer:
Radar
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38. What is a photo detector?
Answer
Correct Answer:
A component used to detect or sense light
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39. What is the conductance of a material changed by?
Answer
Correct Answer:
Electromagnetic radiation in the visible light spectrum
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40. What is the conductance of a material change by incident electromagnetic radiation in the visible light spectrum called?
Answer
Correct Answer:
Photoconduction
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41. What is a photoconductive cell?
Answer
Correct Answer:
A material whose resistance decreases or conductance increases when exposed to light.
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42. What is phosphor?
Answer
Correct Answer:
A luminescent material that when bombarded with electrons will emit light of various colors.
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43. What is cathode ray tube?
Answer
Correct Answer:
A tube that when bombarded with electrons will emit light of various colors.
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44. What does an oscillator that uses three RC networks in its feedback path produce?
Answer
Correct Answer:
180° phase shift
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45. What is the required phase shift for oscillation in a phase shift oscillator?
Answer
Correct Answer:
180°
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46. What does phase shift mean?
Answer
Correct Answer:
Change in phase of a wave form between two points, expressed as degrees of lead or lag.
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47. What does phase shift represent?
Answer
Correct Answer:
Change in phase of a wave form between two points
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48. What is phase angle?
Answer
Correct Answer:
Phase difference between two or more waves, normally expressed in degrees.
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49. What is the Period?
Answer
Correct Answer:
Time to complete one full cycle of a periodic or repeating waveform.
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50. What does "period" refer to in the context of a waveform?
Answer
Correct Answer:
The time to complete one full cycle of a periodic or repeating waveform.
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51. What does "peak to peak" refer to in an AC waveform?
Answer
Correct Answer:
The difference between the maximum positive and maximum negative values
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52. What does the term "peak to peak" refer to in regards to an AC waveform?
Answer
Correct Answer:
Difference between the maximum positive and maximum negative values of an AC waveform.
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53. What is the full form of PIV?
Answer
Correct Answer:
Peak inverse voltage
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54. What is a circuit having two or more paths for current flow called?
Answer
Correct Answer:
Parallel
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55. What is a Parallel Circuit?
Answer
Correct Answer:
A circuit having two or more paths for current flow.
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56. What is the condition that occurs when the load is greater than the system was designed to handle?
Answer
Correct Answer:
Overload
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57. Overload occurs when the load is ____________ than the system was designed to handle.
Answer
Correct Answer:
Greater
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58. Output power is measured in what units?
Answer
Correct Answer:
Watts
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59. What is impedance measured across the output terminals of a device without a load connected called?
Answer
Correct Answer:
Output impedance
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60. What does Output refer to in the context of electronics?
Answer
Correct Answer:
Terminal at which a component, circuit or piece of equipment delivers current, voltage or power.
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61. What does Output refer to in relation to Terminal?
Answer
Correct Answer:
The delivery of current, voltage or power
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62. What does an oscilloscope show?
Answer
Correct Answer:
Signal amplitude, period and wave shape
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63. Oscilloscope shows _____.
Answer
Correct Answer:
Signal amplitude, period, and wave shape
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64. What is an amplifier circuit having no means of comparing the output with the input called?
Answer
Correct Answer:
Open loop mode
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65. What does open loop mode mean?
Answer
Correct Answer:
An amplifier circuit having no means of comparing the output with the input.
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66. What is the gain of an amplifier when no feedback is present?
Answer
Correct Answer:
Open loop gain
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67. What does op-amp stand for?
Answer
Correct Answer:
Operational amplifier
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68. What is an operational amplifier?
Answer
Correct Answer:
An electronic amplifier that can be used to amplify voltage or current
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69. What is the symbol for Ohm?
Answer
Correct Answer:
W
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70. What is the unit of resistance symbolized by the Greek capital letter omega?
Answer
Correct Answer:
Ohm
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71. What does "Normally open" mean?
Answer
Correct Answer:
The contacts of a switch or relay are normally open or not connected.
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72. What is noise?
Answer
Correct Answer:
Unwanted electromagnetic radiation within an electrical or mechanical system.
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73. What is a node?
Answer
Correct Answer:
A junction or branch point in a circuit.
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74. What is a nickel-cadmium cell?
Answer
Correct Answer:
A secondary cell that uses a nickel oxide positive electrode and a cadmium negative electrode.
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75. What is the electrical charge of a neutron?
Answer
Correct Answer:
No electrical charge
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76. What is a "neutral wire"?
Answer
Correct Answer:
A conductor that is intended to have a ground potential.
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77. Atoms with an equal number of protons and electrons are called what?
Answer
Correct Answer:
Neutral atoms
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78. What is the definition of Neutral?
Answer
Correct Answer:
A terminal, point or object with balanced charges. Neither positive or negative.
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79. What does the term 'network' refer to?
Answer
Correct Answer:
Combination of interconnected components, circuits or systems.
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80. Modulation is the process by which an information signal is used to modify what?
Answer
Correct Answer:
A higher frequency wave known as a carrier
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81. What is the process known as Modulation?
Answer
Correct Answer:
The process by which an information signal is used to modify some characteristic of a higher frequency wave.
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82. What does a microphone do?
Answer
Correct Answer:
Converts sound energy into electric energy.
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83. What is a mica capacitor?
Answer
Correct Answer:
A capacitor using mica as the dielectric.
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84. What is the unit of length in the metric system?
Answer
Correct Answer:
Meter
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85. A metal oxide resistor is a type of ____________.
Answer
Correct Answer:
Metal Film Resistor
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86. What does MOSFET stand for?
Answer
Correct Answer:
Metal oxide semiconductor field effect transistor
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87. A metal film resistor is a resistor in which a film of metal oxide or alloy is deposited on ________.
Answer
Correct Answer:
An insulating substrate
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88. What is a primary cell?
Answer
Correct Answer:
A cell that cannot be recharged and is thrown away after use.
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89. What is one maxwell unit equivalent to?
Answer
Correct Answer:
One magnetic line of force.
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90. A small load impedance will result in what?
Answer
Correct Answer:
A small load current
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91. What is the load impedance if the load is small?
Answer
Correct Answer:
Large
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92. What is the load impedance?
Answer
Correct Answer:
Vector sum of reactance and resistance in a load.
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93. What is Load current?
Answer
Correct Answer:
Current drawn from a source by a load.
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94. What is a load?
Answer
Correct Answer:
A component or piece of equipment that is connected to a source and draws current from a source.
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95. What is line regulation?
Answer
Correct Answer:
The ability of a voltage regulator to maintain a constant voltage when the regulator input voltage varies.
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96. What is a linear scale?
Answer
Correct Answer:
A scale in which the divisions are uniformly spaced.
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97. What is the relationship between input and output in a linear function?
Answer
Correct Answer:
The output varies in direct proportion to the input.
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98. What is a limiter?
Answer
Correct Answer:
Circuit or device that prevents some portion of its input from reaching the output.
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99. What is the full form of LED?
Answer
Correct Answer:
Light-emitting diode
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100. What is the meaning of leakage?
Answer
Correct Answer:
Small undesirable flow of current through an insulator or dielectric.
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101. What does a lead-acid cell consist of?
Answer
Correct Answer:
Lead plates immersed in a sulphuric acid electrolyte
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102. What is the algebraic sum of the voltage drops in a closed path circuit?
Answer
Correct Answer:
The algebraic sum of the source voltages applied
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103. The sum of the currents flowing into a point in a circuit is equal to which of the following?
Answer
Correct Answer:
The sum of the currents flowing out of that same point
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104. What is the sum of the currents flowing into a point in a circuit?
Answer
Correct Answer:
The sum of the currents flowing out of that same point.
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105. What is Kinetic Energy?
Answer
Correct Answer:
Energy associated with motion.
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106. What measures the amount of electric power used by a customer?
Answer
Correct Answer:
Kilowatt-hour meter
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107. What does kilowatt-hour measure?
Answer
Correct Answer:
1000 watts for 1 hour
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108. How many watts are in 1 kilowatt-hour?
Answer
Correct Answer:
1000 watts
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109. What is a Kilovolt-ampere?
Answer
Correct Answer:
1000 volts at 1 ampere
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110. What does "kilo" mean?
Answer
Correct Answer:
Metric prefix for 1000.
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111. What is the metric prefix for 1000?
Answer
Correct Answer:
Kilo
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112. What is a junction diode?
Answer
Correct Answer:
A semiconductor diode in which the rectifying characteristics occur at a junction between the n-type and p-type semiconductor materials.
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