Canadian Basic pool, section 4-01

Basic

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Subelement 4

Circuit Components

Section 4-01

amplifier fundamentals

4-01-01

A circuit designed to increase the level of its input signal is called:

Correct Answer
A.
an amplifier
B.
a modulator
C.
an oscillator
D.
a receiver

4-01-01

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4-01-02

If an amplifier becomes non- linear, the output signal would:

Correct Answer
A.
become distorted
B.
be saturated
C.
cause oscillations
D.
overload the power supply

4-01-02

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4-01-03

To increase the level of very weak radio signals from an antenna, you would use:

A.
an RF oscillator
B.
an audio oscillator
Correct Answer
C.
an RF amplifier
D.
an audio amplifier

4-01-03

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4-01-04

To increase the level of very weak signals from a microphone you would use:

A.
an RF oscillator
B.
an RF amplifier
Correct Answer
C.
an audio amplifier
D.
an audio oscillator

4-01-04

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4-01-05

The range of frequencies to be amplified by a speech amplifier is typically:

A.
3 to 300 Hz
B.
300 to 1000 Hz
C.
40 to 40 000 Hz
Correct Answer
D.
300 to 3400 Hz

4-01-05

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4-01-06

Which of the following is not amplified by an amplifier?

A.
current
Correct Answer
B.
resistance
C.
power
D.
voltage

4-01-06

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4-01-07

The increase in signal level by an amplifier is called:

A.
attenuation
B.
amplitude
C.
modulation
Correct Answer
D.
gain

4-01-07

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4-01-08

A device with gain has the property of:

A.
attenuation
B.
oscillation
C.
modulation
Correct Answer
D.
amplification

4-01-08

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4-01-09

A device labelled "Gain = 10 dB" is likely to be an:

A.
attenuator
B.
oscillator
C.
audio fader
Correct Answer
D.
amplifier

4-01-09

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4-01-10

Amplifiers can amplify:

A.
current, power, or inductance
Correct Answer
B.
voltage, current, or power
C.
voltage, power, or inductance
D.
voltage, current, or inductance

4-01-10

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4-01-11

Which of the following is not a property of an amplifier?

A.
gain
B.
linearity
C.
distortion
Correct Answer
D.
loss

4-01-11

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