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MCQs

Total Questions : 68 | Page 1 of 7 pages
Question 1. In a typical op-amp, which stage is supposed to be a dual-input unbalanced output or single-ended output differential amplifier?
  1.    Input stage
  2.    Intermediate stage
  3.    Output stage
  4.    Level shifting stage
 Discuss Question
Answer: Option B. -> Intermediate stage
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 2. Which among the following is/are the feature/s characteristic/s of an integrated op-amp?
  1.    Small size
  2.    High reliability
  3.    Low cost & less power consumption
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3. Input offset current is basically defined as the algebraic ______ the base current of two transistors.
  1.    sum of
  2.    difference between
  3.    product of
  4.    division of
 Discuss Question
Answer: Option B. -> difference between
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4. In a differential amplifier, the configuration is said to be an 'unbalanced output', if ________
  1.    Output voltage is measured between two collectors
  2.    Output is measured with respect to ground
  3.    Two input signals are used
  4.    All of the above
 Discuss Question
Answer: Option B. -> Output is measured with respect to ground
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 5. Unipolar belongs to ________technology/ies of integrated circuits.
  1.    Hybrid
  2.    Monolithic
  3.    Both a and b
  4.    None of the above
 Discuss Question
Answer: Option B. -> Monolithic
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 6. Which among the following belong to the category of bipolar technology?
A. JFET
B. MOSFET
C. P-N junction isolation
D. Di-electric isolation
  1.    A & B
  2.    B & C
  3.    C & D
  4.    A & D
 Discuss Question
Answer: Option C. -> C & D
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 7. In differential mode of op-amp, if output voltage is equal to the difference between outputs of individual transistors, its amplitude will be _______the amplitude of signal voltage yielded at collector to ground.
  1.    twice
  2.    thrice
  3.    four times
  4.    one-fourth times
 Discuss Question
Answer: Option A. -> twice
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 8. In op-amps, which type of noise occurs due to discrete flow of current in the device?
  1.    Shot noise
  2.    Burst noise
  3.    Thermal noise
  4.    Flicker noise
 Discuss Question
Answer: Option A. -> Shot noise
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 9. Which op-amp technology/ies exhibit/s low current sourcing/ sinking capacity?
  1.    Bipolar op-amp
  2.    CMOS op-amp
  3.    BICMOS op-amp
  4.    All of the above
 Discuss Question
Answer: Option B. -> CMOS op-amp
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 10. How many stages are involved in bipolar op-amp?
  1.    2
  2.    3
  3.    4
  4.    6
 Discuss Question
Answer: Option B. -> 3
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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