Sail E0 Webinar

MCQs

Total Questions : 103 | Page 6 of 11 pages
Question 51. Full load u.p.f adjustment involves _________
  1.    adjusting the loads at unity power factor
  2.    applying rated voltage to pressure coil and a p.f. of unity for current coil
  3.    only applying rated voltage to pressure coil
  4.    only a p.f. of unity for the current coil
 Discuss Question
Answer: Option C. -> only applying rated voltage to pressure coil
Answer: (c).only applying rated voltage to pressure coil
Question 52. A rotating phase sequence indicator consists of ________
  1.    1 coil
  2.    2 coils
  3.    5 coils
  4.    3 coils
 Discuss Question
Answer: Option D. -> 3 coils
Answer: (d).3 coils
Question 53. Phase sequence indicator gives the maximum value of phase voltages.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 54. Synchronization of A.C. supply means __________
  1.    different phase sequence
  2.    same phase sequence
  3.    zero phase
  4.    using a transformer
 Discuss Question
Answer: Option B. -> same phase sequence
Answer: (b).same phase sequence
Question 55. How many types of phase sequence indicators are there?
  1.    1
  2.    5
  3.    2
  4.    10
 Discuss Question
Answer: Option C. -> 2
Answer: (c).2
Question 56. Excitation of the three coils produces ________
  1.    a static magnetic field
  2.    a rotating magnetic field
  3.    a static electric field
  4.    a rotating electric field
 Discuss Question
Answer: Option B. -> a rotating magnetic field
Answer: (b).a rotating magnetic field
Question 57. Disc rotation is determined by ________
  1.    the supply voltage
  2.    an arrow
  3.    the turns ratio
  4.    the load current
 Discuss Question
Answer: Option B. -> an arrow
Answer: (b).an arrow
Question 58. Eddy e.m.f produces a torque.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 59. The three coils are ________
  1.    star connected
  2.    delta connected
  3.    not connected
  4.    shorted
 Discuss Question
Answer: Option A. -> star connected
Answer: (a).star connected
Question 60. In the Two wattmeter method of measuring power in a balanced three-phase circuit, one wattmeter shows zero and the other positive maximum. The load power factor is?
  1.    0
  2.    0.5
  3.    0.866
  4.    1.0
 Discuss Question
Answer: Option B. -> 0.5
Answer: (b).0.5

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