CETa EXAM AND PRACTICE EXAM 2023-2024 ACTUAL EXAM 300 QUESTIONS AND CORRECT DETAILED
ANSWERS
VGA - (answer) 640 x 480
256 Colors
15 Pins
SVGA - (answer) 800 x 600
256 Colors
15 Pins
XGA - (answer) 1024 x 768 or 1366 x 768
16 mil, HD Colors
15 Pins
Widescreen - (answer) 1280 x 720 or 1920 x 1080
DVI or HDMI Connectors
Random Access Memory - (answer) RAM
Read Only Memory - (answer) ROM
Programmable Read Only Memory - (answer) PROM
Electrical Programmable Read Only Memory - (answer) EPROM
Electrically Erasable PROM - (answer) EEPROM
50 Ohms - (answer) Impedance generally used in radio communications
, CETa EXAM AND PRACTICE EXAM 2023-2024 ACTUAL EXAM 300 QUESTIONS AND CORRECT DETAILED
ANSWERS
RF Section - (answer) Part of radio receiver, receives incoming RF electrical-magnetic signal. Very broad
banded, amplifies input signals. Most noise is produced here.
Mixer - (answer) Part of radio receiver, heterodynes received signal with signal produced by local
oscillator circuit. Output contains the sum and difference frequencies.
IF Section - (answer) Part of radio receiver, uses a set frequency throughout. Amplifies desired tuned
frequency.
10.7 MHz - (answer) Commonly used FM Radio Frequency
44 MHz - (answer) Commonly used Television Frequency
1.6, 3.35, 9, and 40 MHz - (answer) Commonly used Short Wave Radio Frequencies
Detector Circuit - (answer) Part of radio receiver, made of a diode; rectifies incoming RF signal.
AGC/AVC Section - (answer) Part of radio receiver, samples the signal at the detector and develops a
control voltage that is fed back to the first IF Amp. Ideally, amplifies weak incoming signals and
attenuates strong ones, allowing a constant, desirable output volume.
AF Section - (answer) Part of radio receiver, audio amplification network that drives speakers. The load
must match the radio's circuitry with proper impedance matching.
Dipole - (answer) Used as reference and as a comparison in measuring "gain" of another antenna.
Yagi - (answer) "Beam" antenna that focuses all of its energy in a narrow beamwidth. The more
director elements present, the higher the gain rating and narrower beam width.
ANSWERS
VGA - (answer) 640 x 480
256 Colors
15 Pins
SVGA - (answer) 800 x 600
256 Colors
15 Pins
XGA - (answer) 1024 x 768 or 1366 x 768
16 mil, HD Colors
15 Pins
Widescreen - (answer) 1280 x 720 or 1920 x 1080
DVI or HDMI Connectors
Random Access Memory - (answer) RAM
Read Only Memory - (answer) ROM
Programmable Read Only Memory - (answer) PROM
Electrical Programmable Read Only Memory - (answer) EPROM
Electrically Erasable PROM - (answer) EEPROM
50 Ohms - (answer) Impedance generally used in radio communications
, CETa EXAM AND PRACTICE EXAM 2023-2024 ACTUAL EXAM 300 QUESTIONS AND CORRECT DETAILED
ANSWERS
RF Section - (answer) Part of radio receiver, receives incoming RF electrical-magnetic signal. Very broad
banded, amplifies input signals. Most noise is produced here.
Mixer - (answer) Part of radio receiver, heterodynes received signal with signal produced by local
oscillator circuit. Output contains the sum and difference frequencies.
IF Section - (answer) Part of radio receiver, uses a set frequency throughout. Amplifies desired tuned
frequency.
10.7 MHz - (answer) Commonly used FM Radio Frequency
44 MHz - (answer) Commonly used Television Frequency
1.6, 3.35, 9, and 40 MHz - (answer) Commonly used Short Wave Radio Frequencies
Detector Circuit - (answer) Part of radio receiver, made of a diode; rectifies incoming RF signal.
AGC/AVC Section - (answer) Part of radio receiver, samples the signal at the detector and develops a
control voltage that is fed back to the first IF Amp. Ideally, amplifies weak incoming signals and
attenuates strong ones, allowing a constant, desirable output volume.
AF Section - (answer) Part of radio receiver, audio amplification network that drives speakers. The load
must match the radio's circuitry with proper impedance matching.
Dipole - (answer) Used as reference and as a comparison in measuring "gain" of another antenna.
Yagi - (answer) "Beam" antenna that focuses all of its energy in a narrow beamwidth. The more
director elements present, the higher the gain rating and narrower beam width.
