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MCQs

Total Questions : 236 | Page 24 of 24 pages
Question 231. For a cell to work, which of the following condition(s) become necessary ?
  1.    Two electrodes of different meta’s should be inserted in the electrolyte, not touching each other
  2.    All of the listed here
  3.    Electrolyte must chemically react with one of the electrodes
  4.    Electrolyte liquid or paste should be conducting
 Discuss Question
Answer: Option B. -> All of the listed here
Question 232. The capacity of a lead-acid cell depends on
  1.    All of these
  2.    Density of electrolyte
  3.    Rate of discharge
  4.    Temperature
 Discuss Question
Answer: Option A. -> All of these
Question 233. Internal resistance of a cell is reduced by
  1.    all of the listed here
  2.    increasing the plate area
  3.    putting plates very close together
  4.    using vent plug to permit gas formed during discharge
 Discuss Question
Answer: Option A. -> all of the listed here
Question 234. Trickle charging of a storage battery helps to
  1.    maintain proper electrolyte level
  2.    increase its reserve capacity
  3.    prevent sulphation
  4.    keep it fresh and fully charged
 Discuss Question
Answer: Option D. -> keep it fresh and fully charged
Question 235. It is noticed that durum charging
  1.    there is a rise in voltage
  2.    the anode becomes chocolate brown in colour (PbCfe) and cathode becomes grey metallic lead (Pb)
  3.    energy is absorbed by the cell
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Question 236. Chargmg of sulphated battery produces ____ heat.
  1.    more
  2.    no
  3.    very little
  4.    less
 Discuss Question
Answer: Option A. -> more

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