Sail E0 Webinar

MCQs

Total Questions : 28 | Page 1 of 3 pages
Question 1.  The primary function of the bias circuit is to
  1.    hold the circuit stable at VCC
  2.    hold the circuit stable at vin
  3.    ensure proper gain is achieved
  4.    hold the circuit stable at the designed Q-point
 Discuss Question
Answer: Option D. -> hold the circuit stable at the designed Q-point
Question 2.  The capacitor that produces an ac ground is called a(n)
  1.    coupling capacitor
  2.    dc open
  3.    bypass capacitor
  4.    ac open
 Discuss Question
Answer: Option C. -> bypass capacitor
Question 3.  The depletion-mode MOSFET
  1.    can operate with only positive gate voltages
  2.    can operate with only negative gate voltages
  3.    cannot operate in the ohmic region
  4.    can operate with positive as well as negative gate voltages
 Discuss Question
Answer: Option D. -> can operate with positive as well as negative gate voltages
Question 4.  In a class B push-pull amplifier, the transistors are biased slightly above cutoff to avoid
  1.    crossover distortion
  2.    unusually high efficiency
  3.    negative feedback
  4.    a low input impedance
 Discuss Question
Answer: Option A. -> crossover distortion
Question 5.  A JFET
  1.    is a current-controlled device
  2.    has a low input resistance
  3.    is a voltage-controlled device
  4.    is always forward-biased
 Discuss Question
Answer: Option C. -> is a voltage-controlled device
Question 6.  Which of the following conditions are needed to properly bias an npn transistor amplifier?
  1.    Forward bias the base/emitter junction and reverse bias the base/collector junction.
  2.    Forward bias the collector/base junction and reverse bias the emitter/base junction.
  3.    Apply a positive voltage on the n-type material and a negative voltage on the p-type material.
  4.    Apply a large voltage on the base.
 Discuss Question
Answer: Option A. -> Forward bias the base/emitter junction and reverse bias the base/collector junction.
Question 7.  Three different points are shown on a dc load line. The upper point represents the
  1.    minimum current gain
  2.    quiescent point
  3.    saturation point
  4.    cutoff point
 Discuss Question
Answer: Option C. -> saturation point
Question 8.  Often a common-collector will be the last stage before the load; the main function of this stage is to
  1.    provide voltage gain
  2.    buffer the voltage amplifiers from the low-resistance load
  3.    provide phase inversion
  4.    provide a high-frequency path to improve the frequency response
 Discuss Question
Answer: Option B. -> buffer the voltage amplifiers from the low-resistance load
Question 9. . The gate-source junction of a JFET must be ________ for proper linear operation.
  1.    forward-biased
  2.    reverse-biased
  3.    either forward-biased or reverse-biased
  4.    neutral
 Discuss Question
Answer: Option B. -> reverse-biased
Question 10. . The ___ oscillator takes advantage of the piezoelectric effect.
  1.    crystal
  2.    Hartley
  3.    Colpitts
  4.    RC
 Discuss Question
Answer: Option A. -> crystal

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI
Tabulation - Test Paper 2 Data Interpretation Reasoning & DI
Test Paper 1 Direction Sense Test Reasoning & DI
ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0
GFM Combined 1 Free Revision Test SAIL JO E-0