Key Topic 51: Amplifiers-1 Flashcards

1
Q

3-51G1: What class of amplifier is distinguished by the presence of output throughout the entire signal cycle and the input never goes into the cutoff region?

A. Class A.
B. Class B.
C. Class C.
D. Class D.

A

A. Class A.

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2
Q

3-51G2: What is the distinguishing feature of a Class A amplifier?

A. Output for less than 180 degrees of the signal cycle.
B. Output for the entire 260 degrees of the signal cycle.
C. Output for more than 180 degrees and less than 360 degrees of the signal cycle.
D. Output for exactly 180 degrees of the input signal cycle.

A

B. Output for the entire 260 degrees of the signal cycle.

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3
Q

3-51G3: Which class of amplifier has the highest linearity and least distortion?

A. Class A.
B. Class B.
C. Class C.
D. Class AB.

A

A. Class A.

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4
Q

3-51G4: Which class of amplifier provides the highest efficiency?

A. Class A.
B. Class B.
C. Class C.
D. Class AB.

A

C. Class C.

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5
Q

3-51G5: What class of amplifier is distinguished by the bias being set well beyond cutoff?

A. Class A.
B. Class C.
C. Class B.
D. Class AB.

A

B. Class C.

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6
Q

3-51G6: Which class of amplifier has an operating angle of more than 180 degrees but less than 360 degrees when driven by a sine wave signal?

A. Class A.
B. Class B.
C. Class C.
D. Class AB.

A

D. Class AB.

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