Sail E0 Webinar

MCQs

Total Questions : 236 | Page 6 of 24 pages
Question 51. The capacity of a lead-acid cell does not depend on its
  1.    temperature
  2.    rate of charge
  3.    rate of discharge
  4.    quantity of active material
 Discuss Question
Answer: Option B. -> rate of charge
Question 52. During the charging and discharging of a nickel-iron cell
  1.    corrosive fumes are produced
  2.    water is neither formed nor absorbed
  3.    nickel hydroxide remains unsplit
  4.    its e.m.f. remains constant
 Discuss Question
Answer: Option B. -> water is neither formed nor absorbed
Question 53. Excessive charging a battery tends to
  1.    produce gassing
  2.    increase the internal resistance of the battery
  3.    to corrode the positive plates into lead peroxide thereby weakening them physically
  4.    bring about all above changes
 Discuss Question
Answer: Option D. -> bring about all above changes
Question 54. _______ of electrolyte indicates the state of charge of the battery
  1.    colour
  2.    mass
  3.    viscosity
  4.    specific gravity
 Discuss Question
Answer: Option D. -> specific gravity
Question 55. As compared to constant-current system, the constant-voltage system of charging a lead acid cell has the advantage of
  1.    reducing time of charging
  2.    increasing cell capacity
  3.    both (A) and (B)
  4.    avoiding excessive gassing
 Discuss Question
Answer: Option C. -> both (A) and (B)
Question 56. Which of the following primary cells has the highest voltage ?
  1.    Manganese-alkaline
  2.    Carbon-zinc
  3.    Lithium
  4.    Mercury
 Discuss Question
Answer: Option C. -> Lithium
Question 57. Petroleum jelly is applied to the electrical connections to the lead-acid battery
  1.    prevent local heating
  2.    prevent short-circuiting
  3.    reduce path resistance
  4.    prevent corrosion
 Discuss Question
Answer: Option D. -> prevent corrosion
Question 58. Five 2 V cells are connected in parallel. The output voltage is
  1.    1 V
  2.    1.5 V
  3.    1.75 V
  4.    2 V
 Discuss Question
Answer: Option D. -> 2 V
Question 59. Charging a sulphated battery at high rate results in
  1.    boiling of electrolyte due to gassing
  2.    warping of plates
  3.    damage to separators, cell caps covers and battery case due to excessive temperature
  4.    all above
 Discuss Question
Answer: Option D. -> all above
Question 60. During the idle period of the battery, strong electrolyte tends to change the active material of the cell into
  1.    Pb02
  2.    PbSC-4
  3.    PbO
  4.    Pb
 Discuss Question
Answer: Option B. -> PbSC-4

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