Sail E0 Webinar

MCQs

Total Questions : 37 | Page 2 of 4 pages
Question 11. The upper or lower cut off frequency is also called ___________ frequency
  1.    Resonant
  2.    Sideband
  3.    3 db
  4.    None of the above
 Discuss Question
Answer: Option C. -> 3 db
Question 12. The best frequency response is of ___________ coupling
  1.    RC
  2.    Transformer
  3.    Direct
  4.    None of the above
 Discuss Question
Answer: Option C. -> Direct
Question 13. 1 db corresponds to ___________ change in voltage or current level
  1.    40%
  2.    80%
  3.    20%
  4.    25%
 Discuss Question
Answer: Option A. -> 40%
Question 14. In an RC coupling scheme, the coupling capacitor CC must be large enough ___________
  1.    To pass d.c. between the stages
  2.    Not to attenuate the low frequencies
  3.    To dissipate high power
  4.    None of the above
 Discuss Question
Answer: Option B. -> Not to attenuate the low frequencies
Question 15. In an RC coupled amplifier, the voltage gain over mid-frequency range ___________
  1.    Changes abruptly with frequency
  2.    Is constant
  3.    Changes uniformly with frequency
  4.    None of the above
 Discuss Question
Answer: Option B. -> Is constant
Question 16. An advantage of RC coupling scheme is the ___________
  1.    Good impedance matching
  2.    Economy
  3.    High efficiency
  4.    None of the above
 Discuss Question
Answer: Option B. -> Economy
Question 17. When a multistage amplifier is to amplify d.c. signal, then one must use coupling
  1.    RC
  2.    Transformer
  3.    Direct
  4.    None of the above
 Discuss Question
Answer: Option C. -> Direct
Question 18. A gain of 1,000,000 times in power is expressed by ___________
  1.    30 db
  2.    60 db
  3.    120 db
  4.    600 db
 Discuss Question
Answer: Option B. -> 60 db
Question 19. The power output of an audio system is 18 W. For a person to notice an increase in the output (loudness or sound intensity) of the system, what must the output power be increased to ?
  1.    2 W
  2.    6 W
  3.    68 W
  4.    None of the above
 Discuss Question
Answer: Option C. -> 68 W
Question 20. A gain of 1000 times in voltage is expressed by ___________
  1.    60 db
  2.    30 db
  3.    120 db
  4.    600 db
 Discuss Question
Answer: Option A. -> 60 db

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