CETa Study Guide – Ultimate Guide With Correct
Solutions
8.33 meters is the full wavelength in air for what RF frequency? Correct
Answer - 36 MHz
Decimal 164 would appear as what in binary? Correct Answer -
10100100
A resistor has color stripes yellow, violet, violet, silver. It is? Correct
Answer - 470 MegOhm +/- 10%
What is the total capacitance of three capacitors valued at 100uf, 100uf and
50uf when connected in series? Correct Answer - 25 pf
What is the ripple frequency of a full wave single phase bridge rectifier
operated at 60 Hz? Correct Answer - 120 Hz
What emits a voltage when heated or cooled? Correct Answer -
Thermocouple
Adding the binary numbers 101011 and 001110 will give you what result?
Correct Answer - 111001
A component that reduces in resistance as it is heated. Correct Answer -
A negative temperature coefficient thermistor
An autotransformer Correct Answer - has a single winding
A dual trace oscilloscope differs from a single trace in that only the dual trace
scope: Correct Answer - alternates sweeps
If an RF signal Voltage is reduced by 6db it is then : Correct Answer -
half the original size
,Applying positive voltage to the P end and negative to the N end of a
germanium diode: Correct Answer - will forward bias it
You would probably prefer a digital VOM over an ordinary analog meter:
Correct Answer - for most accuracy
You should expect the video amplifier in a radar or TV receiver to have a
frequency response of: Correct Answer - 0-6 MHzd
The radio communication mode that utilizes the basic frequency and one of
the side bands: Correct Answer - is called "SSB"
When using fiber optic to transfer a signal, the light must: Correct Answer
- enter the "cone of acceptance"
The energy stored in a coil is measured in: Correct Answer - Henrys
The telephone communication term "Cellular" refers to: Correct Answer -
small geographic areas covered by each base station
Integrated circuit failures often exhibit: Correct Answer - open or short
conditions
Which of these would you normally choose to cause an LED to light?
Correct Answer - 3 VDC
A capacitor (3/8"x1/8" ceramic or mica) marked 47K is: Correct Answer
- 47 pf +/- 10%
A "digital storage oscilloscope": Correct Answer - uses micro processing
and memory to allow close analysis of signal.
Carbon microphones are much like variable: Correct Answer - resistors
An antenna that is longer than another: Correct Answer - will have a
lower resonant frequency
An 8 bit binary code allows how many logical combinations. Correct
Answer - 256
, An inductor in an electronic circuit: Correct Answer - resists AC current
flow
A printer directly connected to a personal computer would use what kind of
connection? Correct Answer - usb or parallel centronics
The digital method of representing characters by using combinations of zeros
and ones is called: Correct Answer - Binary
AM utilizes signal level variations where FM utilizes : Correct Answer -
Frequency variations
What decimal number is represented by the binary number 01101010?
Correct Answer - 106
Decimal 50 would appear as what number in Hex? Correct Answer - 32
The display of a DMM would probably be: Correct Answer - LCD
A disadvantage of LCD is: Correct Answer - Environmental temperature
sensitivity
A series DC motor with no load: Correct Answer - maybe damaged by
excessive speed
Which motor maintains a constant speed with changing load? Correct
Answer - Shunt
A small power drill or electric mixer would probably be powered by a
Correct Answer - Series Motor
0 db when referring to audio signals means: Correct Answer - decibels
referenced to 1 milliwatt
If a class A differential amplifier is using only one of its two possible inputs,
what will the output shape be? Correct Answer - Exactly the same as the
one input
Solutions
8.33 meters is the full wavelength in air for what RF frequency? Correct
Answer - 36 MHz
Decimal 164 would appear as what in binary? Correct Answer -
10100100
A resistor has color stripes yellow, violet, violet, silver. It is? Correct
Answer - 470 MegOhm +/- 10%
What is the total capacitance of three capacitors valued at 100uf, 100uf and
50uf when connected in series? Correct Answer - 25 pf
What is the ripple frequency of a full wave single phase bridge rectifier
operated at 60 Hz? Correct Answer - 120 Hz
What emits a voltage when heated or cooled? Correct Answer -
Thermocouple
Adding the binary numbers 101011 and 001110 will give you what result?
Correct Answer - 111001
A component that reduces in resistance as it is heated. Correct Answer -
A negative temperature coefficient thermistor
An autotransformer Correct Answer - has a single winding
A dual trace oscilloscope differs from a single trace in that only the dual trace
scope: Correct Answer - alternates sweeps
If an RF signal Voltage is reduced by 6db it is then : Correct Answer -
half the original size
,Applying positive voltage to the P end and negative to the N end of a
germanium diode: Correct Answer - will forward bias it
You would probably prefer a digital VOM over an ordinary analog meter:
Correct Answer - for most accuracy
You should expect the video amplifier in a radar or TV receiver to have a
frequency response of: Correct Answer - 0-6 MHzd
The radio communication mode that utilizes the basic frequency and one of
the side bands: Correct Answer - is called "SSB"
When using fiber optic to transfer a signal, the light must: Correct Answer
- enter the "cone of acceptance"
The energy stored in a coil is measured in: Correct Answer - Henrys
The telephone communication term "Cellular" refers to: Correct Answer -
small geographic areas covered by each base station
Integrated circuit failures often exhibit: Correct Answer - open or short
conditions
Which of these would you normally choose to cause an LED to light?
Correct Answer - 3 VDC
A capacitor (3/8"x1/8" ceramic or mica) marked 47K is: Correct Answer
- 47 pf +/- 10%
A "digital storage oscilloscope": Correct Answer - uses micro processing
and memory to allow close analysis of signal.
Carbon microphones are much like variable: Correct Answer - resistors
An antenna that is longer than another: Correct Answer - will have a
lower resonant frequency
An 8 bit binary code allows how many logical combinations. Correct
Answer - 256
, An inductor in an electronic circuit: Correct Answer - resists AC current
flow
A printer directly connected to a personal computer would use what kind of
connection? Correct Answer - usb or parallel centronics
The digital method of representing characters by using combinations of zeros
and ones is called: Correct Answer - Binary
AM utilizes signal level variations where FM utilizes : Correct Answer -
Frequency variations
What decimal number is represented by the binary number 01101010?
Correct Answer - 106
Decimal 50 would appear as what number in Hex? Correct Answer - 32
The display of a DMM would probably be: Correct Answer - LCD
A disadvantage of LCD is: Correct Answer - Environmental temperature
sensitivity
A series DC motor with no load: Correct Answer - maybe damaged by
excessive speed
Which motor maintains a constant speed with changing load? Correct
Answer - Shunt
A small power drill or electric mixer would probably be powered by a
Correct Answer - Series Motor
0 db when referring to audio signals means: Correct Answer - decibels
referenced to 1 milliwatt
If a class A differential amplifier is using only one of its two possible inputs,
what will the output shape be? Correct Answer - Exactly the same as the
one input
