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CETa study guide with complete solutions
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CETa study guide with complete solutions
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CETa study guide with completesolutions
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
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
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