B-004-01: Amplifier fundamentals
B-004-01-01:
A circuit designed to increase the level of its input signal is called:
an amplifier
a modulator
an oscillator
a receiver
B-004-01-02:
If an amplifier becomes non-linear, the output signal would:
become distorted
be saturated
cause oscillations
overload the power supply
B-004-01-03:
To increase the level of very weak radio signals from an antenna, you would use:
an RF amplifier
an RF oscillator
an audio oscillator
an audio amplifier
B-004-01-04:
To increase the level of very weak signals from a microphone you would use:
an audio amplifier
an RF oscillator
an RF amplifier
an audio oscillator
B-004-01-05:
The range of frequencies to be amplified by a speech amplifier is typically:
300 to 3400 Hz
3 to 300 Hz
300 to 1000 Hz
40 to 40 000 Hz
B-004-01-06:
Which of the following IS NOT amplified by an amplifier?
resistance
current
power
voltage
B-004-01-07:
The increase in signal level by an amplifier is called:
gain
attenuation
amplitude
modulation
B-004-01-08:
A device with gain has the property of:
amplification
attenuation
oscillation
modulation
B-004-01-09:
A device labelled "Gain = 10 dB" is likely to be an:
amplifier
attenuator
oscillator
audio fader
B-004-01-10:
Amplifiers can amplify:
voltage, current, or power
current, power, or inductance
voltage, power, or inductance
voltage, current, or inductance
B-004-01-11:
Which of the following is not a property of an amplifier?
loss
gain
linearity
distortion
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