Sail E0 Webinar

MCQs

Total Questions : 206 | Page 2 of 21 pages
Question 11. Series reactors should have
  1.    low resistance
  2.    high resistance
  3.    low impedance
  4.    high impedance
 Discuss Question
Answer: Option A. -> low resistance
Question 12. Insulation resistance of high voltage circuit breakers is more than
  1.    1 mega ohms
  2.    10 mega ohms
  3.    100 mega ohms
  4.    500 mega ohms
 Discuss Question
Answer: Option C. -> 100 mega ohms
Question 13. Distance relays are generally
  1.    split-phase relays
  2.    reactance relays
  3.    impedance relays
  4.    none of the above
 Discuss Question
Answer: Option D. -> none of the above
Question 14. An efficient and a well designed protective relaying should have
  1.    good selectivity and reliability
  2.    economy and simplicity
  3.    high speed and selectivity
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Question 15. For which of the following protection from negative sequence currents is provided ?
  1.    Generators
  2.    Motors
  3.    Transmission line
  4.    Transformers
 Discuss Question
Answer: Option A. -> Generators
Question 16. To protect most of the electrical equipment handling low power, the types of relays used are
  1.    Thermocouple
  2.    Electronic and bimetallic
  3.    Both (A) and (B)
  4.    None of the above
 Discuss Question
Answer: Option C. -> Both (A) and (B)
Question 17. A fuse in a motor circuit provides protection against
  1.    overload
  2.    short-circuit and overload
  3.    open circuit, short-circuit and overload
  4.    none of the above
 Discuss Question
Answer: Option B. -> short-circuit and overload
Question 18. Wave trap is used to trap waves of
  1.    power frequencies
  2.    higher frequencies entering generator or transformer units
  3.    either of the above
  4.    none of the above
 Discuss Question
Answer: Option B. -> higher frequencies entering generator or transformer units
Question 19. SF6 gas
  1.    is yellow in colour
  2.    is lighter than air
  3.    is nontoxic
  4.    has pungent small
  5.    none of the above
 Discuss Question
Answer: Option C. -> is nontoxic
Question 20. Air blast circuit breakers for 400 kV power system are designed to operate in
  1.    100 microsecond
  2.    50 millisecond
  3.    0.5 sec
  4.    0.1 sec
 Discuss Question
Answer: Option B. -> 50 millisecond

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