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MCQs

Total Questions : 122 | Page 3 of 13 pages
Question 21. A transistor is a ___________ operated device
  1.    current
  2.    voltage
  3.    both voltage and current
  4.    none of the above
 Discuss Question
Answer: Option A. -> current
Question 22. Transistor biasing is done to keep ___________ in the circuit
  1.    Proper direct current
  2.    Proper alternating current
  3.    The base current small
  4.    Collector current small
 Discuss Question
Answer: Option A. -> Proper direct current
Question 23. A tuned amplifier is used in ___________ applications
  1.    Radio frequency
  2.    Low frequency
  3.    Audio frequency
  4.    None of the above
 Discuss Question
Answer: Option A. -> Radio frequency
Question 24. The most commonly used transistor arrangement is ___________ arrangement
  1.    common emitter
  2.    common base
  3.    common collector
  4.    none of the above
 Discuss Question
Answer: Option A. -> common emitter
Question 25. Transistor biasing represents ___________ conditions
  1.    a.c.
  2.    d.c.
  3.    both a.c. and d.c.
  4.    none of the above
 Discuss Question
Answer: Option B. -> d.c.
Question 26. At series resonance, the circuit offers ___________ impedance
  1.    Zero
  2.    Maximum
  3.    Minimum
  4.    None of the above
 Discuss Question
Answer: Option C. -> Minimum
Question 27. A tuned amplifier is generally operated in ___________ operation
  1.    Class A
  2.    Class C
  3.    Class B
  4.    None of the above
 Discuss Question
Answer: Option B. -> Class C
Question 28. 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
 Discuss Question
Answer: Option A. -> Loose
Question 29. A resonant circuit contains ___________ elements
  1.    R and L only
  2.    R and C only
  3.    Only R
  4.    L and C
 Discuss Question
Answer: Option D. -> L and C
Question 30. IC = ß IB + ___________
  1.    ICBO
  2.    IC
  3.    ICEO
  4.    aIE
 Discuss Question
Answer: Option C. -> ICEO

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