Transistor Tuned Amplifiers(Electrical Engineering Questions ) Questions and Answers

Question 1. The Q of a tuned amplifier is generally _________________?
  1.    Less than 5
  2.    Less than 10
  3.    More than 10
  4.    None of the above
Explanation:-
Answer: Option C. -> More than 10
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 2. For frequencies below resonant frequency, a series LC circuit behaves as a _____________ load?
  1.    Resistive
  2.    Capacitive
  3.    Inductive
  4.    None of the above
Explanation:-
Answer: Option B. -> Capacitive
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3. Tuned class C amplifiers are used for RF signals of________________?
  1.    Low power
  2.    High power
  3.    Very high power
  4.    None of the above
Explanation:-
Answer: Option D. -> None of the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4. Double tuned circuits are used in ____________ stages of a radio receiver?
  1.    IF
  2.    Audio
  3.    Output
  4.    None of the above
Explanation:-
Answer: Option A. -> IF
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 5. If a high degree of selectivity is desired, then double-tuned circuit should have ___________ coupling?
  1.    Loose
  2.    Tight
  3.    Critical
  4.    None of the above
Explanation:-
Answer: Option A. -> Loose
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 6. In the double tuned circuit, if the mutual inductance between the two tuned circuits is decreased, the level of resonance curve ___________________?
  1.    Remains the same
  2.    Is lowered
  3.    Is raised
  4.    None of the above
Explanation:-
Answer: Option C. -> Is raised
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 7. In parallel resonance, there is _______________?
  1.    Both voltage and current amplification
  2.    Voltage amplifications
  3.    Current amplification
  4.    None of the above
Explanation:-
Answer: Option C. -> Current amplification
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 8. For frequencies above the resonant frequency, a parallel LC circuit behaves as a ____________ load?
  1.    Capacitive
  2.    Resistive
  3.    Inductive
  4.    None of the above
Explanation:-
Answer: Option A. -> Capacitive
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 9. Frequencies above ______________ kHz are called radio frequencies?
  1.    2
  2.    10
  3.    50
  4.    200
Explanation:-
Answer: Option D. -> 200
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 10. In series resonance, there is__________________?
  1.    Voltage amplification
  2.    Current amplification
  3.    Both voltage and current amplification
  4.    None of the above
Explanation:-
Answer: Option A. -> Voltage amplification
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
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