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MCQs

Total Questions : 236 | Page 19 of 24 pages
Question 181. The effect of sulphation is that the internal resistance
  1.    remains same
  2.    decreases
  3.    increases
  4.    none of the listed here
 Discuss Question
Answer: Option C. -> increases
Question 182. Internal resistance of a cell is due to
  1.    all of the listed here
  2.    electrode resistance
  3.    resistance of electrolyte
  4.    surface contact resistance between electrode and electrolyte
 Discuss Question
Answer: Option A. -> all of the listed here
Question 183. Which of the following has lower sp. gravity V
  1.    All of the listed here
  2.    Water
  3.    Concentrated H₂SO₄
  4.    Dilute H₂SO₄
 Discuss Question
Answer: Option B. -> Water
Question 184. The open circuit voltage of any storage cell depends wholly upon
  1.    its chemical constituents
  2.    on the strength of its electrolyte
  3.    its temperature
  4.    all of the listed here
 Discuss Question
Answer: Option D. -> all of the listed here
Question 185. Satellite power requirement is provided through
  1.    dry cells
  2.    lead-acid batteries
  3.    solar cells
  4.    nickel-cadmium cells
 Discuss Question
Answer: Option C. -> solar cells
Question 186. During the charging of a lead-acid cell
  1.    it gives out energy
  2.    its voltage increases
  3.    its cathode becomes dark chocolate brown in colour
  4.    specific gravity of H₂SO₄ decreases
 Discuss Question
Answer: Option B. -> its voltage increases
Question 187. The internal resistance of a lead-acid cell is that of Edison cell
  1.    Equal to
  2.    Less than
  3.    None of the listed here
  4.    More than
 Discuss Question
Answer: Option B. -> Less than
Question 188. The internal resistance of an alkali cell is nearly _____ times that of the lead-acid cell.
  1.    4
  2.    3
  3.    2
  4.    5
 Discuss Question
Answer: Option D. -> 5
Question 189. Level of electrolyte in a cell should be _____ the level of plates
  1.    below
  2.    none of the listed here
  3.    equal to
  4.    above
 Discuss Question
Answer: Option D. -> above
Question 190. Which of the following battery is used for aircraft ?
  1.    Dry cell battery
  2.    Nickel-iron battery
  3.    Lead-acid battery
  4.    Silver oxide battery
 Discuss Question
Answer: Option B. -> Nickel-iron battery

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