Index

SymbolsTransformerRelayPower-SystemBasic-electricalACSR-ConductorCircuit-BreakerInterview-questions-of-Basic-ElectricityInterview-questions-of-transformerInsulatorCurrent-TransformerMCQMCQ-powersystemThermal-power-stationInterview-questions-of-Power-SystemPower-ElectronicsInterview-questions-of-Underground-CableInterview-questions-of-IlluminationIlluminationMCQ-of-ElectronicsMCQ-of-Basic-ElectricalMCQ-of-Transformers MCQ-of-D.C-motor MCQ-of-D.C-generatorsMCQ-Control-SystemMCQ-Measurementsmcq-of-Generation-power-systemMCQ-of-Induction-MotorMCQ-of-Transmission-DistributionMCQ-of-Electrical-MachinesMCQ-of-Alternator-and-Synchronous-Motors

Multiple Choice Question (MCQ) of Battery page-17


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161. Choose the correct relation

A) Change = Potential/capacity
B) Potential = Charge/capacity
C) Capacity = potential × charge
D) Potential = Charge × capacity.

Ans : (B)

162. It has been found that the internal resistance of a cell is comparable to external resistance we wish to have maximum current through the external resistance. We should combine the cells in

A) series
B) series or parallel
C) parallel
D) mixed.

Ans : (D)

163. When the internal resistance of a cell is large compared to the external resistance in the circuit then a high current can flow through the external resistance by grouping the cells

A) As in series
B) In parallel
C) In either series or parallel
D) Mixed.

Ans : (B)

164. Out of the following which one will have the lowest cathode current density?

A) Silver plating
B) Cadmium plating
C) Zinc plating.

Ans : (A)

165. Which cell has the reversible chemical reaction?

A) Lead acid
B) Mercury oxide
C) Silver oxide
D) Carbon Zinc.

Ans : (A)

166. Fillers in a lead acid battery are provided

A) to recover acid loss through vapors
B) to facilitate flow of gases
C) to prevent flow of gases
D) all of the above.

Ans : (B)

167. The plates of lead acid storage battery are most likely to be short circuited if

A) too much water is added
B) sediment collect at the bottom of the battery
C) the battery charged too slowly
D) the electrolyte evaporates.

Ans : (B)

168. The ratio of ampere-hour efficiency to watt-hour efficiency of a lead acid cell is

A) just one
B) always greater than one
C) always less than one
D) none of the above.

Ans : (B)

169. When the lead acid cell is fully charged the electrolyte assumes _ appearance.

A) milky
B) bright
C) reddish
D) dull.

Ans : (A)

170. Which meat is deposited for electroforming? A) Chromium
B) Silver
C) Iron
D) Nickel.

Ans : (D)


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