Sail E0 Webinar

MCQs

Total Questions : 377 | Page 8 of 38 pages
Question 71. In a D.C. generator in case the resistance of the field winding is increased, then output voltage will
  1.    Increase
  2.    Decrease
  3.    Remain unaffected
  4.    Fluctuate heavily
 Discuss Question
Answer: Option B. -> Decrease
Question 72. In case of D.C. machines, mechanical losses are primary function of
  1.    Current
  2.    Voltage
  3.    Speed
  4.    None of above
 Discuss Question
Answer: Option C. -> Speed
Question 73. Which of the following generator will have negligible terminal voltage while running on no-load?
  1.    Series generator
  2.    Shunt generator
  3.    Compound generator
  4.    Separately excited generator
 Discuss Question
Answer: Option A. -> Series generator
Question 74. In over compounded generator, full load terminal voltage is
  1.    Almost zero
  2.    Less than no load terminal voltage
  3.    More than no load terminal voltage
  4.    Equal to no-load terminal voltage
 Discuss Question
Answer: Option C. -> More than no load terminal voltage
Question 75. To achieve sparkless commutation brushes of a D.C. generator are rockedm ahead so as to bring them
  1.    just ahead of magnetic neutral axis
  2.    in magnetic neutral axis
  3.    just behind the magnetic neutral axis
 Discuss Question
Answer: Option A. -> just ahead of magnetic neutral axis
Question 76. In a level compounded D.C. generator, full load terminal voltage is
  1.    Negligibly low
  2.    Equal to no-load terminal voltage
  3.    More than no-load terminal voltage
  4.    Less than no-load terminal voltage
 Discuss Question
Answer: Option B. -> Equal to no-load terminal voltage
Question 77. In D.C. generators, lap winding is used for
  1.    High voltage, high current
  2.    Low voltage, high current
  3.    High voltage, low current
  4.    Low voltage, low current
 Discuss Question
Answer: Option B. -> Low voltage, high current
Question 78. Which generator would you prefer for feeding long D.C. transmission lines?
  1.    Series generator
  2.    Shunt generator
  3.    Over compound generator
  4.    Flat compound generator
 Discuss Question
Answer: Option C. -> Over compound generator
Question 79. In D.C. generators the pole shoes are fastened to the pole core by
  1.    Rivets
  2.    Counter sunk screws
  3.    Brazing
  4.    Welding
 Discuss Question
Answer: Option B. -> Counter sunk screws
Question 80. Copper brushes in D.C. machine are used
  1.    Where low voltage and high currents are involved
  2.    Where high voltage and small currents are involved
  3.    In both of the above cases
  4.    In none of the above cases
 Discuss Question
Answer: Option A. -> Where low voltage and high currents are involved

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

DSP Combined 1 Free Revision Test SAIL JO E-0
GPOE / GPA Combined 1 Free Revision Test SAIL JO E-0
BSP Plant Specific Review Test SAIL JO E-0
BSL Combined 1 Free Revision Test SAIL JO E-0
GFM Combined 1 Free Revision Test SAIL JO E-0