Electronic Circuits

231. Which coupling has the best frequency response?

  1. Direct
  2. RC
  3. Transformer
  4. Transistor

Correct answer: (A)
Direct

232. Which frequency produces the highest noise factor?

  1. 10kHz
  2. 500Hz
  3. 1kHz
  4. 100 Hz

Correct answer: (A)
10kHz

233. Which is a fixed-frequency oscillator

  1. Phase-shift oscillator
  2. Colpitt's oscillator
  3. Hartley oscillator
  4. Crystal oscillator

Correct answer: (D)
Crystal oscillator

234. Which is not a basic BJT amplifier configuration?

  1. Common-drain
  2. Common-base
  3. Common-emitter
  4. Common-collector

Correct answer: (A)
Common-drain

235. Which is used to establish a fixed level of current or voltage in a transistor?

  1. Biasing
  2. Loading
  3. Load line
  4. Coupling

Correct answer: (A)
Biasing

236. Which of the following amplifier below is a choice when higher power gain is a requirement?

  1. Common base
  2. Common emitter
  3. Common collector
  4. Hybrid connection

Correct answer: (B)
Common emitter

237. Which of the following amplifier is considered linear?

  1. Class A
  2. Class B
  3. Class C
  4. Either A or B

Correct answer: (D)
Either A or B

238. Which of the following describes a common collector amplifier?

  1. Low voltage gain
  2. Low current gain
  3. Low power gain
  4. Low input resistance

Correct answer: (A)
Low voltage gain

239. Which of the following is considered an amplifier figure of merit?

  1. Gain-bandwidth product
  2. Beta(β)
  3. Alpha(α)
  4. Temperature

Correct answer: (A)
Gain-bandwidth product

240. Which of the following is not a FET amplifier configuration?

  1. Common base amplifier
  2. Common drain amplifier
  3. Common source amplifier
  4. Common gate amplifier

Correct answer: (A)
Common base amplifier

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