Element 3: General Radiotelephone

effective 6/25/2009

Show:
    Unseen questions
    Weak questions
    Review questions
    Learned questions
    Incorrect answer choices  
   

3-G-052: Amplifiers-2

3-52G1: The class B amplifier output is present for what portion of the input cycle?

180 degrees.

360 degrees.

Greater than 180 degrees and less than 360 degrees.

Less than 180 degrees.



3-52G2: What input-amplitude parameter is most valuable in evaluating the signal-handling capability of a Class A amplifier?

Peak voltage.

Average voltage.

RMS voltage.

Resting voltage.



3-52G3: The class C amplifier output is present for what portion of the input cycle?

Less than 180 degrees.

Exactly 180 degrees.

360 degrees.

More than 180 but less than 360 degrees.



3-52G4: What is the approximate DC input power to a Class AB RF power amplifier stage in an unmodulated carrier transmitter when the PEP output power is 500 watts?

1000 watts.

250 watts.

600 watts.

800 watts.



3-52G5: The class AB amplifier output is present for what portion of the input cycle?

More than 180 but less than 360 degrees.

Exactly 180 degrees.

360 degrees

Less than 180 degrees.



3-52G6: What class of amplifier is characterized by conduction for 180 degrees of the input wave?

Class B.

Class A.

Class C.

Class D.





Color key:
● = Unseen
● = Weak
● = Review
● = Learned
● = Incorrect answer
Previous group:
3-G-051: Amplifiers-1
Back to index:
Element 3: General Radiotelephone
Next group:
3-G-053: Oscillators & Modulators