Associate CET Practice Exam With 100%
Correct Answers 2024/2025
._______ is a term describing many op-amp circuits. - ANSWER-Inverting
._____________ will cause a generator to produce DC voltage rather than AC. -
ANSWER-The communtator
."Microwave," as used in radio electronics, refers to: - ANSWER-1GHz - 100GHz
radio frequencies
.0 dBm V is what levle of received TV signal? - ANSWER-1000 microvolts
.0 dBm, when referring to audio signals means: - ANSWER-decibels referenced
to 1 milliwatt
.8.33 meters is the full wavelength in air for what RF frequency? - ANSWER-36
MHz
.A __________ is a reference antenna that all other antennas with gain are
compared to. - ANSWER-Dipole
.A "video signal" is defined as: - ANSWER-Baseband including visual
information.
,.A 10W signal is received at 5W. This is a ____________dB loss. - ANSWER-3
.A block in a digital diagram is called a NOR. Which is true? - ANSWER-It is a NOT
OR or inverted OR
.A byte is: - ANSWER-8 bits
.A capacitor (3/8" x 1/8" ceramic or mica) marked 47K is: - ANSWER-47pf+/-
10%
.A capacitor opposes any change in: - ANSWER-voltage
.A capacitor will charge to what percent of full charge in one RC time? -
ANSWER-63.2
.A component that reduces in resistance as it is heated: - ANSWER-Is a negative
temperature coefficient thermistor
.A current carrying conductor is placed in a magnetic field perpendicular to the
lines flux. It tends to move in_________ direction to the force of magnetic lines
of flux, as determined by flemings left hand rule. - ANSWER-a perpendicular
.A differential amplifier whose two input signals are equal, but 180 degree out
of phase, will have a ___________ output signal. - ANSWER-maximum
.A differential amplifier with two identical in phase signals on the inputs will
have an output __________. - ANSWER-of zero
, .A digital storage oscilloscope: - ANSWER-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
.A disadvantage of LCD is: - ANSWER-environmental temperature sensitivity
.A dual trace oscilloscope differs from a single trace in that only the dual trace
scope: - ANSWER-alternates sweeps
.A dual trace oscilloscope may have: - ANSWER-a Z input for intensity
modulation
.A free running oscillator is also called a monostable multivibrator. - ANSWER-
false
.A fuse which has its fusible wire wrapped around an insulator is: - ANSWER-a
slo-blo type fuse
.A fuse, marked 250v, 650ma can be used in circuits with an "open fuse" supply
voltage of: - ANSWER-125 volts
.A high frequency antenna ________ than a low frequency one. - ANSWER-is
shorter
.A light emitting diode will light when: - ANSWER-it is forward biased
Correct Answers 2024/2025
._______ is a term describing many op-amp circuits. - ANSWER-Inverting
._____________ will cause a generator to produce DC voltage rather than AC. -
ANSWER-The communtator
."Microwave," as used in radio electronics, refers to: - ANSWER-1GHz - 100GHz
radio frequencies
.0 dBm V is what levle of received TV signal? - ANSWER-1000 microvolts
.0 dBm, when referring to audio signals means: - ANSWER-decibels referenced
to 1 milliwatt
.8.33 meters is the full wavelength in air for what RF frequency? - ANSWER-36
MHz
.A __________ is a reference antenna that all other antennas with gain are
compared to. - ANSWER-Dipole
.A "video signal" is defined as: - ANSWER-Baseband including visual
information.
,.A 10W signal is received at 5W. This is a ____________dB loss. - ANSWER-3
.A block in a digital diagram is called a NOR. Which is true? - ANSWER-It is a NOT
OR or inverted OR
.A byte is: - ANSWER-8 bits
.A capacitor (3/8" x 1/8" ceramic or mica) marked 47K is: - ANSWER-47pf+/-
10%
.A capacitor opposes any change in: - ANSWER-voltage
.A capacitor will charge to what percent of full charge in one RC time? -
ANSWER-63.2
.A component that reduces in resistance as it is heated: - ANSWER-Is a negative
temperature coefficient thermistor
.A current carrying conductor is placed in a magnetic field perpendicular to the
lines flux. It tends to move in_________ direction to the force of magnetic lines
of flux, as determined by flemings left hand rule. - ANSWER-a perpendicular
.A differential amplifier whose two input signals are equal, but 180 degree out
of phase, will have a ___________ output signal. - ANSWER-maximum
.A differential amplifier with two identical in phase signals on the inputs will
have an output __________. - ANSWER-of zero
, .A digital storage oscilloscope: - ANSWER-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
.A disadvantage of LCD is: - ANSWER-environmental temperature sensitivity
.A dual trace oscilloscope differs from a single trace in that only the dual trace
scope: - ANSWER-alternates sweeps
.A dual trace oscilloscope may have: - ANSWER-a Z input for intensity
modulation
.A free running oscillator is also called a monostable multivibrator. - ANSWER-
false
.A fuse which has its fusible wire wrapped around an insulator is: - ANSWER-a
slo-blo type fuse
.A fuse, marked 250v, 650ma can be used in circuits with an "open fuse" supply
voltage of: - ANSWER-125 volts
.A high frequency antenna ________ than a low frequency one. - ANSWER-is
shorter
.A light emitting diode will light when: - ANSWER-it is forward biased
