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CETa Study Guide Exam Questions With
Verified Answers
8.33 meters is the full wavelength in air for what RF frequency? - answer✔36 MHz
Decimal 164 would appear as what in binary? - answer✔10100100
A resistor has color stripes yellow, violet, violet, silver. It is? - answer✔470 MegOhm +/- 10%
What is the total capacitance of three capacitors valued at 100uf, 100uf and 50uf when connected
in series? - answer✔25 pf
What is the ripple frequency of a full wave single phase bridge rectifier operated at 60 Hz? -
answer✔120 Hz
What emits a voltage when heated or cooled? - answer✔Thermocouple
Adding the binary numbers 101011 and 001110 will give you what result? - answer✔111001
A component that reduces in resistance as it is heated. - answer✔A negative temperature
coefficient thermistor
An autotransformer - answer✔has a single winding
A dual trace oscilloscope differs from a single trace in that only the dual trace scope: -
answer✔alternates sweeps
If an RF signal Voltage is reduced by 6db it is then : - answer✔half the original size
Applying positive voltage to the P end and negative to the N end of a germanium diode: -
answer✔will forward bias it
You would probably prefer a digital VOM over an ordinary analog meter: - answer✔for most
accuracy
You should expect the video amplifier in a radar or TV receiver to have a frequency response of:
- answer✔0-6 MHzd
, ©BRAINBARTER 2024/2025
The radio communication mode that utilizes the basic frequency and one of the side bands: -
answer✔is called "SSB"
When using fiber optic to transfer a signal, the light must: - answer✔enter the "cone of
acceptance"
The energy stored in a coil is measured in: - answer✔Henrys
The telephone communication term "Cellular" refers to: - answer✔small geographic areas
covered by each base station
Integrated circuit failures often exhibit: - answer✔open or short conditions
Which of these would you normally choose to cause an LED to light? - answer✔3 VDC
A capacitor (3/8"x1/8" ceramic or mica) marked 47K is: - answer✔47 pf +/- 10%
A "digital storage oscilloscope": - answer✔uses micro processing and memory to allow close
analysis of signal.
Carbon microphones are much like variable: - answer✔resistors
An antenna that is longer than another: - answer✔will have a lower resonant frequency
An 8 bit binary code allows how many logical combinations. - answer✔256
An inductor in an electronic circuit: - answer✔resists AC current flow
A printer directly connected to a personal computer would use what kind of connection? -
answer✔usb or parallel centronics
The digital method of representing characters by using combinations of zeros and ones is called:
- answer✔Binary
AM utilizes signal level variations where FM utilizes : - answer✔Frequency variations
What decimal number is represented by the binary number 01101010? - answer✔106
Decimal 50 would appear as what number in Hex? - answer✔32
The display of a DMM would probably be: - answer✔LCD
A disadvantage of LCD is: - answer✔Environmental temperature sensitivity
A series DC motor with no load: - answer✔maybe damaged by excessive speed
Which motor maintains a constant speed with changing load? - answer✔Shunt
CETa Study Guide Exam Questions With
Verified Answers
8.33 meters is the full wavelength in air for what RF frequency? - answer✔36 MHz
Decimal 164 would appear as what in binary? - answer✔10100100
A resistor has color stripes yellow, violet, violet, silver. It is? - answer✔470 MegOhm +/- 10%
What is the total capacitance of three capacitors valued at 100uf, 100uf and 50uf when connected
in series? - answer✔25 pf
What is the ripple frequency of a full wave single phase bridge rectifier operated at 60 Hz? -
answer✔120 Hz
What emits a voltage when heated or cooled? - answer✔Thermocouple
Adding the binary numbers 101011 and 001110 will give you what result? - answer✔111001
A component that reduces in resistance as it is heated. - answer✔A negative temperature
coefficient thermistor
An autotransformer - answer✔has a single winding
A dual trace oscilloscope differs from a single trace in that only the dual trace scope: -
answer✔alternates sweeps
If an RF signal Voltage is reduced by 6db it is then : - answer✔half the original size
Applying positive voltage to the P end and negative to the N end of a germanium diode: -
answer✔will forward bias it
You would probably prefer a digital VOM over an ordinary analog meter: - answer✔for most
accuracy
You should expect the video amplifier in a radar or TV receiver to have a frequency response of:
- answer✔0-6 MHzd
, ©BRAINBARTER 2024/2025
The radio communication mode that utilizes the basic frequency and one of the side bands: -
answer✔is called "SSB"
When using fiber optic to transfer a signal, the light must: - answer✔enter the "cone of
acceptance"
The energy stored in a coil is measured in: - answer✔Henrys
The telephone communication term "Cellular" refers to: - answer✔small geographic areas
covered by each base station
Integrated circuit failures often exhibit: - answer✔open or short conditions
Which of these would you normally choose to cause an LED to light? - answer✔3 VDC
A capacitor (3/8"x1/8" ceramic or mica) marked 47K is: - answer✔47 pf +/- 10%
A "digital storage oscilloscope": - answer✔uses micro processing and memory to allow close
analysis of signal.
Carbon microphones are much like variable: - answer✔resistors
An antenna that is longer than another: - answer✔will have a lower resonant frequency
An 8 bit binary code allows how many logical combinations. - answer✔256
An inductor in an electronic circuit: - answer✔resists AC current flow
A printer directly connected to a personal computer would use what kind of connection? -
answer✔usb or parallel centronics
The digital method of representing characters by using combinations of zeros and ones is called:
- answer✔Binary
AM utilizes signal level variations where FM utilizes : - answer✔Frequency variations
What decimal number is represented by the binary number 01101010? - answer✔106
Decimal 50 would appear as what number in Hex? - answer✔32
The display of a DMM would probably be: - answer✔LCD
A disadvantage of LCD is: - answer✔Environmental temperature sensitivity
A series DC motor with no load: - answer✔maybe damaged by excessive speed
Which motor maintains a constant speed with changing load? - answer✔Shunt
