8/7/2019 Electronics INFO

1/4

1. Huntron tracker alternate mode

2. Chop mode high frequency sampling and display

3. 5% - typical accuracy for time based measurements

4. 7% - typical accuracy maximum magnification

5. 5% of vertical trace - typical width of trace in oscilloscope6. 3% - volt per division

7. 1Mohm with 30pf capacitance input of oscilloscope

8. Multiple function generator used to display intermodulation distortion

9. 50 500 v range of breakover voltage for scr

10. 30 100 A - range of forward current for scr

11. Germanium dioxide used for commercial germanium diodes

12. Curve tracer commercial available tracer

13. 1 um accuracy of visual proximity sensor

14. Photodetector heart of all photo sensor15. Squid used in MEG(magnetoencephalography)

16. Jones circuit uses scr for triggering dc motor

17. 1934 zener diode was developed

18. 1958 esaki diode was developed

19. Actuating signal difference between reference signal and feedback signal

20. Germanium used as cryogenic thermistor

21. LED has a disadvantage of wider spectral width

22. 2 to 3 times injection laser diode is brighter than led by _______

23. Childs law variation of voltage and current values24. Rodney brooks famous for his insect robots

25. Boole first to use mathematical analysis in logic circuits

26. TTL has larger input current compared to DTL

27. RTL is slow because of its input base resistance and transistor

capacitance

28. RCTL faster version of RTL

29. 10khz 75khz frequency range of ultrasonic welding

30. 450khz high frequency welding

31. Cold welding pressure welding32. Friction welding solid state welding

33. Diffused junction used in solar cells

34. Alloy junction used in high power transistor and simple to make

35. MESA transistor has a disadvantage of having collector resistance

36. Series field resistance winding causes an increase in speed of dc motor

8/7/2019 Electronics INFO

2/4

37. Series resistance with the armature limits the starting current of dc motor

38. Diode conducts in only one direction

39. A1,A2,A3 also called electron lens

40. A2 - also called focus ring, has potential of -2kV

41. Beam finder - shifted beam42. Vertical A and B oscilloscope that show 2 displays

43. MosFET conduction graph is parabolic

44. Chain drive constant gear

45. Expert system a rule based system

46. For every 10 deg. C increase in temp saturation current doubles

(100% increase)

47. For every 1 deg. C increase in temp saturation current increases 7%

48. 12kV potential of helix in oscilloscope

49. 10V turning off voltage of HDL50. 1.1 eV energy gap for silicon

51. 58 62 Hz vibrating reed

52. 0.5MHz - 3GHz range of frequency meter

53. 10^9 switching speed of SCR

54. Tunnel diode no isolation

55. Average current decreases when the firing angle is increased in an SCR

56. Speed increases when the firing angle is increased in an SCR

57. Motor is jogged when applied with short burst of current/voltage

58. Voltage shunt voltage source employed in OP-AMPS59. Class A uses transformer coupling

60. Impedance coupling used in high frequency

61. RC coupling for multiple networks

62. Sample and hold circuit used in constant gain non-inverting op-amp

63. ICBO most important parameter

64. Diode normal operating condition VBE = 0.7v , VCB = 0.2v

65. Wien bridge measures capacitance and losses

66. Vacuum tube used in grid dip meter (tandaan vacuum tubes lng ang my

grid whether triode, tetrode etc)67. Water used in 1GHz flow calorimeter

68. Squirrel cage motor has low starting torque

69. Series motor universal motor

70. Digital computer pulsed counting accelerometer

71. Accelerometer is based on inertia

8/7/2019 Electronics INFO

3/4

72. Screening mammogram used for breast scanning

73. 1 CE and CB cascade configuration

74. Examples of gas discharge tube include neon and fluorescent

75. External current limiter protection on gas discharge tube

76. HTL fastest unsaturated77. ECL fastest saturated

78. RTL first to be implemented in logic gate (1960)

79. 2 comparators used in 3 bit ADC

80. Fibrous braid most commonly used wire protection

81. Earth fault leakage current from center of wire to earth

82. Blavier test for single wire cable

83. Steering the solder while soldering prevents sweat joint

84. Quarter adder without carry

85. 2 halfwave rectifier used as voltage doubler86. 1 10 H range of power supply choke

87. Eutectic alloy no semiliquid phase

88. Application of positive feedback narrowband amplifier, oscillator, radio

receiver

89. Rosin flux used in electronic circuits

90. +/- 50 to +/- 500 mV range of small signal sensor

91. Moving coil instrument even scale in measuring dc

92. Moving coil rectifier instrument even scale in measuring ac

93. Moving iron instrument uneven scale in measuring ac/dc94. Moving magnet instrument uneven scale in measuring dc

95. Moving magnet rectifier instrument uneven scale in measuring ac

96. 22% - max efficiency of solar panel

97. Walkthrough programming used by playback robot

98. Solar panel has lower resistance compared to photodiode

99. Potentiometer used in comparing voltages

100. Potentiometer used as position sensor in servo system

101. AC servomotor easy to manufacture at high torque

102. QRIO Sony robot103. Relay used to decrease current in circuit

104. Air gap in magnetic circuit increases reluctance

105. Maximum power transfer occurs when load equals input impedance of

generator

106. Diode is unidirectional and unilateral

8/7/2019 Electronics INFO

4/4

107. Transistor will be unstable due to temperature variation and parameter

variation

108. Nyquist plot - steady state frequency analysis

109. Negative bias the gain is proportional to the decrease in output

impedance110. 10:1 attenuation of 10 fold probe

111. Unbiased pn junction has contact potential

112. Commutator used to generate dc voltage

113. SMAW (shielded metal arc welding) uses the tip of electrode that is

melting

114. Slip speed synchro rotor speed

115. Clinometer measure slope

116. Thermal stability advantage of UJT vs FET

117. Varley loop test measure fault in telephone cable118. De sautys bridge measures capacitance based on known capacitance

119. Autonomous robot works independent

120. Cray 1 supercomputer using gallium arsenide (invented by Seymour

Cray)

121. Android is best use in environment with children

122. Triac is used in colored TV

123. Bistable uses 2 nand gates

124. Manipulator robot arm

125. High level language source program126. Biometry is used for identification, verification and authorization

127. Core loss eddy current and hysteresis loss

128. Zinc cathode of a dry cell

129. Greater accuracy advantage of multispeed over single speed synchro

130. FLOPS (floating operations per second) measure of processing speed of

supercomputer

131. Mossbauer effect refers to condition where nucleus is stimulated to emit

very sharply defined beams of gamma rays

132. Power loss copper loss133. When motor is overloaded it will overheat

134. The speed of a three phase motor can be increased by decreasing the

external resistance in the rotor circuit

135. Microelectronics general term for miniature electronics