ASSOCIATE CET PRACTICE EXAM
QUESTIONS AND ANSWERS
8.33 meters is the full wavelength in air for what RF frequency? - Correct Answers -36
MHz
Decimal 164 would appear as ________ in binary? - Correct Answers -10100100
A resistor has color stripes yellow, violet, violet, silver. It is: - Correct Answers -470
MegOhm +/- 10%
what is the total capacitance of three capacitors valued at 100pf, 100pf, and 50pf when
connected in a series? - Correct Answers -25 pf
what is the ripple frequency of a full wave single phase bridge rectifier operated at
60Hz? - Correct Answers -120Hz
When heated or cooled, a ________emits a voltage. - Correct Answers -theromcouple
Which wire size is physically largest? - Correct Answers -#8
Adding the binary numbers 101011 and 001110 will give you what result? - Correct
Answers -111001
A component that reduces in resistance as it is heated: - Correct Answers -Is a negative
temperature coefficient thermistor
An autotransformer: - Correct Answers -has a single winding
A dual trace oscilloscope differs from a single trace in that only the dual trace scope: -
Correct Answers -alternates sweeps
If an RF signal voltage is reduced by 6 dB, it is then: - Correct Answers -half the original
size
Applying positive voltage to the P end and negative to the N end of a germanium diode:
- Correct Answers -will forward bias it
, You would probably prefer a digital VOM over an ordinary analog meter: - Correct
Answers -for most accuracy
You should expect the video amplifier in a radar or TV receiver to have a frequency
response of: - Correct Answers -0-6 MHz
The radio communication mode that utilizes the basic frequency and one of the side
bands: - Correct Answers -is called "SSB"
When using fiber optics to transfer a signal, the light must: - Correct Answers -Enter the
"cone of acceptance"
The energy stored in a coil is measured in: - Correct Answers -Joules
The telephone communication term "cellular" refers to: - Correct Answers -small
geographic areas covered by each base station.
Integrated Circuit failures often exhibit: - Correct Answers -open or short conditions
Which of these would you normally choose to cause an LED to light? - Correct Answers
-3 V DC
A capacitor (3/8" x 1/8" ceramic or mica) marked 47K is: - Correct Answers -47pf+/-
10%
A digital storage oscilloscope: - Correct Answers -uses micro processing and memory to
allow close analysis of signals; is specially designed for analyzing digital signals;
converts analog input signals to a digital display
Carbon microphones are much like variable: - Correct Answers -Resistors
An antenna that is longer than another: - Correct Answers -will have a lower resonant
frequency
An 8-bit binary code allows ______ logical combinations. - Correct Answers -256
An inductor in an electronic circuit: - Correct Answers -resists AC current flow
A printer directly connected to a personal computer would use a _______ connection. -
Correct Answers -USB or parallel Centronics
The digital method of representing characters by using combinations of zeros and ones
is called: - Correct Answers -binary
Fm utilizes ______ where AM utilizes signal level variations. - Correct Answers -
frequency variations
QUESTIONS AND ANSWERS
8.33 meters is the full wavelength in air for what RF frequency? - Correct Answers -36
MHz
Decimal 164 would appear as ________ in binary? - Correct Answers -10100100
A resistor has color stripes yellow, violet, violet, silver. It is: - Correct Answers -470
MegOhm +/- 10%
what is the total capacitance of three capacitors valued at 100pf, 100pf, and 50pf when
connected in a series? - Correct Answers -25 pf
what is the ripple frequency of a full wave single phase bridge rectifier operated at
60Hz? - Correct Answers -120Hz
When heated or cooled, a ________emits a voltage. - Correct Answers -theromcouple
Which wire size is physically largest? - Correct Answers -#8
Adding the binary numbers 101011 and 001110 will give you what result? - Correct
Answers -111001
A component that reduces in resistance as it is heated: - Correct Answers -Is a negative
temperature coefficient thermistor
An autotransformer: - Correct Answers -has a single winding
A dual trace oscilloscope differs from a single trace in that only the dual trace scope: -
Correct Answers -alternates sweeps
If an RF signal voltage is reduced by 6 dB, it is then: - Correct Answers -half the original
size
Applying positive voltage to the P end and negative to the N end of a germanium diode:
- Correct Answers -will forward bias it
, You would probably prefer a digital VOM over an ordinary analog meter: - Correct
Answers -for most accuracy
You should expect the video amplifier in a radar or TV receiver to have a frequency
response of: - Correct Answers -0-6 MHz
The radio communication mode that utilizes the basic frequency and one of the side
bands: - Correct Answers -is called "SSB"
When using fiber optics to transfer a signal, the light must: - Correct Answers -Enter the
"cone of acceptance"
The energy stored in a coil is measured in: - Correct Answers -Joules
The telephone communication term "cellular" refers to: - Correct Answers -small
geographic areas covered by each base station.
Integrated Circuit failures often exhibit: - Correct Answers -open or short conditions
Which of these would you normally choose to cause an LED to light? - Correct Answers
-3 V DC
A capacitor (3/8" x 1/8" ceramic or mica) marked 47K is: - Correct Answers -47pf+/-
10%
A digital storage oscilloscope: - Correct Answers -uses micro processing and memory to
allow close analysis of signals; is specially designed for analyzing digital signals;
converts analog input signals to a digital display
Carbon microphones are much like variable: - Correct Answers -Resistors
An antenna that is longer than another: - Correct Answers -will have a lower resonant
frequency
An 8-bit binary code allows ______ logical combinations. - Correct Answers -256
An inductor in an electronic circuit: - Correct Answers -resists AC current flow
A printer directly connected to a personal computer would use a _______ connection. -
Correct Answers -USB or parallel Centronics
The digital method of representing characters by using combinations of zeros and ones
is called: - Correct Answers -binary
Fm utilizes ______ where AM utilizes signal level variations. - Correct Answers -
frequency variations
