8.33 meters is the full wavelength in air for what RF frequency? - Answers 36 MHz
A resistor has color stripes yellow violet violet silver - Answers 470 Megohm +/- 10%
Total capacitance of 3 capacitors 100pf, 100pf and 50pf in series? - Answers 25pf
Ripple frequency of a full wave single phase bridge rectifier operating at 60 Hz? - Answers 120 Hz
When heated or cooled, a ____ emits a voltage. - Answers thermocouple
A component that reduces in resistance as it is heated - Answers is a negative coefficient thermistor.
A dual trace oscilloscope differs from a single trace in that only the dual trace scope - Answers alternates
sweeps.
If an RF signal voltage is reduced by 6 dB, it is then - Answers half the original size
Applying positive voltage to the P end and negative voltage to the N end of a germanium diode -
Answers will forward bias it
You would probably prefer a digital VOM over an ordinary analog meter: - Answers for most accuracy
You should expect the video amplifier in a radar or TV receiver to have a frequency response of: -
Answers 0-6MHz
- Answers
The radio communication mode that utilizes the basic frequency and one of the side bands: - Answers is
called "SSB".
When using fiber optics to transfer a signal, the light must: - Answers enter the cone of acceptance.
The energy stored in a coil is measured in - Answers Joules
Cellular means - Answers small geographic areas covered by each base station
Integrated circuit failures often exhibit: - Answers open or short conditions
What kind and quantity of voltage to light an LED? - Answers 3 V DC
A capacitor marked 47k is: - Answers 47pf +/- 10%
A digital storage oscilloscope: - Answers uses microprocessing and memory to allow close analysis of
signals.
Carbon microphones are much like variable: - Answers resistors
, An antenna that is longer than another: - Answers will have a lower resonant frequency.
An 8 bit binary code allows ____ logical combinations - Answers 256
An induction an electronic circuit - Answers resists current flow
- Answers
A printer connected to a personal computer would use a ________ connection - Answers USB or parallel
Centronics
FM uses __________ where AM uses signal level variations - Answers frequency variations
Decimal 50 would be ______ in hex. - Answers 32
The display of a DMM would probably be - Answers LCD
A disadvantage of LCD is - Answers environmental temperature sensitivity
A series DC motor, with no load - Answers may be damaged by excessive speed
Which motor maintains a constant speed with changing loads? - Answers shunt motor
A small power drill or electric mixer would probably be powered by a _______ motor - Answers series
The rotor in an induction motor is not connected to AC or DC power. - Answers True
0 dBm, when referring to audio signals, means - Answers decibels referenced to 1 milliwatt
If a class A differential amplifier is using only one of its two possible inputs, what will the output signal
shape be? - Answers exactly the same as the input
Voltage is - Answers potential difference between two points
A term that describes many op-amp circuits - Answers Inverting
The gain of an op-amp is inversely related to band width as input frequency increases - Answers always
The audio detector circuit in an AM radio most commonly is a: - Answers Diode
A differential amplifier with two identical in-phase signals on the inputs will have an output - Answers of
zero
A free running oscillator is also called a monostable multivibrator - Answers false
A fuse which has its fusible wire wrapped around an insulator is - Answers a Slo-Blo type fuse
The power transformer in a power supply - Answers might step voltages up or down
What are the basic components of a non-switching power supply - Answers filter rectifier transformer