Page 368 - GMAT 2017b_Neatb

Electronics Information Test 2

69. What does the following schematic symbol represent? (C) control volume in audio equipment.
(D) provide power to televisions.

76. A difference between high definition television
(HDTV) and standard definition television (SDTV) is
(A) SDTV is in black and white, whereas HDTV is in
color.
(B) HDTV raster has more lines than SDTV raster.
(A) an unspecified output (C) SDTV is transmitted by cable whereas HDTV is
(B) a shielded jack transmitted by satellite.
(C) a jack and plug (D) HDTV requires fiber optic cable whereas SDTV
(D) an unspecified component does not.

70. An oscilloscope is a useful tool for 77. In electronics, CRT stands for
(A) displaying how signal voltage varies over time (A) cathode ray tube.
(B) calculating ohms based on voltage detected. (B) capacitor reduction tool.
(C) measuring amperage. (C) current refinement tool.
(D) testing the current to confirm AC or DC. (D) coulomb relay trend.

71. The two most important features of an oscilloscope are 78. What does the following schematic symbol represent?
(A) resolution and digital storage.
(B) delayed sweep and digital storage.
(C) bandwidth and resolution.
(D) bandwidth and delayed sweep.

72. What function does the inductor perform in the circuit (A) an antenna
diagram? (B) a semiconductor
(C) a chassis ground
(D) an earth ground

79. An example of an output transducer would be a(n)
Load
(A) lamp.
(B) loudspeaker.
(C) light-emitting diode (LED).
(D) all the above.
(A) band stop filter 80. What type of electronic memory can be accessed but
(B) band pass filter not changed?
(C) low pass filter (A) diode memory
(D) high pass filter (B) bipolar memory
(C) read only memory (ROM)
73. What is the biggest advantage of fiber optic data lines (D) random access memory (RAM)
over coaxial or conventional data transmission lines?
(A) Fiber optic lines carry more data. 81. In which of the following is a quartz crystal most
(B) Fiber optic lines are easier to configure and use. likely to be found?
(C) Fiber optic lines cost less. (A) a transformer
(D) Fiber optic lines are more robust than conventional (B) a capacitor
lines. (C) a battery
(D) an oscillator
74. When building a simple series circuit, which of the
following should always be connected last? 82. What type of voltage is available from a typical
(A) the capacitor domestic wall outlet?
(B) the fixed resistor (A) DC
(C) the potentiometer (B) AC
(D) the power (C) static
(D) dynamic
75. A potentiometer is commonly used to
(A) control power input to a transformer.
(B) provide power to lamps.
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