Sail E0 Webinar

MCQs

Total Questions : 192 | Page 3 of 20 pages
Question 21. Which of the following is a flowchart depicting WECS modelling?
  1.    Wind turbine aerodynamic model → gear train model → power grid → generator (PMSG/DFIG)
  2.    Wind turbine aerodynamic model → generator (PMSG/DFIG) → gear train model → power grid
  3.    Wind turbine aerodynamic model → generator (PMSG/DFIG) → power grid → gear train model
  4.    Wind turbine aerodynamic model → gear train model → generator (PMSG/DFIG) → power grid
 Discuss Question
Answer: Option D. -> Wind turbine aerodynamic model → gear train model → generator (PMSG/DFIG) → power grid
Answer: (d).Wind turbine aerodynamic model → gear train model → generator (PMSG/DFIG) → power grid
Question 22. _______ speed WECS is the most flexible in terms of the generator used.
  1.    Full variable
  2.    Limited variable
  3.    Half variable
  4.    Fixed
 Discuss Question
Answer: Option A. -> Full variable
Answer: (a).Full variable
Question 23. Which of the following is true?
  1.    More than 50% of the land area on earth can generate 1W per square meter
  2.    Less than 5% of the land area on earth can generate 1W per square meter
  3.    60 – 80% of the land area on earth can generate 1W per square meter
  4.    More than 80% of the land area on earth can generate 1W per square meter
 Discuss Question
Answer: Option B. -> Less than 5% of the land area on earth can generate 1W per square meter
Answer: (b).Less than 5% of the land area on earth can generate 1W per square meter
Question 24. What happens to wind speed when many turbines operate collectively?
  1.    Wind speed reduces
  2.    Wind speed increases
  3.    Wind speed does not change
  4.    Wind speed increases exponentially and then decreases linearly
 Discuss Question
Answer: Option A. -> Wind speed reduces
Answer: (a).Wind speed reduces
Question 25. Lower wind speeds result in ________
  1.    higher wind energy obtained
  2.    no wind energy obtained
  3.    lower wind energy obtained
  4.    100% energy conversion for half the operation time and less than 10% energy conversion for the remaining half of the operation time
 Discuss Question
Answer: Option C. -> lower wind energy obtained
Answer: (c).lower wind energy obtained
Question 26. What happens to the output power when the wind turbine blades rotate faster for the entire operation time?
  1.    The output power first increases then decreases
  2.    The output power first decreases then monotonically increases
  3.    The output power decreases
  4.    The output power increases
 Discuss Question
Answer: Option D. -> The output power increases
Answer: (d).The output power increases
Question 27. What is cut-in wind speed?
  1.    Wind turbine stops generating output power
  2.    Wind turbine starts generating output power
  3.    Wind turbine stops functioning
  4.    Wind turbine starts functioning
 Discuss Question
Answer: Option B. -> Wind turbine starts generating output power
Answer: (b).Wind turbine starts generating output power
Question 28. Which of the following are the limits of the range of wind speeds for which the turbines are designed?
  1.    Elasticity
  2.    Threshold voltage
  3.    Networking
  4.    Cut-in speed and cut-out speed
 Discuss Question
Answer: Option D. -> Cut-in speed and cut-out speed
Answer: (d).Cut-in speed and cut-out speed
Question 29. Higher wind speeds _________ the speed of rotation of the wind blades.
  1.    increase
  2.    decrease
  3.    monotonically decrease
  4.    first increase and then decrease
 Discuss Question
Answer: Option A. -> increase
Answer: (a).increase
Question 30. What is rated speed?
  1.    Wind turbines generate least output power
  2.    Wind turbines do not generate any output power
  3.    Wind turbines generate maximum output power
  4.    Wind turbines have no rated speed as the output power always increases
 Discuss Question
Answer: Option C. -> Wind turbines generate maximum output power
Answer: (c).Wind turbines generate maximum output power

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