Computer Programming MCQs

5739 MCQs  (Page 146 of 574)

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The active materials of a nickel-iron battery are___________?
A. Nickel hydroxide
B. Powdered iron and its oxide
C. 21% solution of koh
D. All of the above
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During charging the specific gravity of the electrolyte of a lead-acid battery
A. Increases
B. Decreases
C. Remains the same
D. Becomes zero
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The mass of an ion liberated at an electrode is directly proportional to the quantity of electricity. The statement is associated with____________?
A. Newton’s law
B. Faraday’s law of electromagnetic
C. Faraday’s law of electrolysis
D. Gauss’s law
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When a lead-acid battery is in fully charged condition, the color of its positive plate is__________?
A. Dark grey
B. Brown
C. Dark brown
D. None of above
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The charge required to liberate one gram equivalent of any substance is known as _________ constant
A. Time
B. Faraday’s
C. Boltzman
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The capacity of a lead-acid cell does not depend on its___________?
A. Temperature
B. Rate of charge
C. Rate of discharge
D. Quantity of active material
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The active materials on the positive and negative plates of a fully charged lead-acid battery are_______?
A. Lead and lead peroxide
B. Lead sulphate and lead
C. Lead peroxide and lead
D. None of the above
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During the charging of a lead-acid cell__________?
A. Its voltage increases
B. It gives out energy
C. Its cathode becomes dark chocolate brown in colour
D. Specific gravity of h2so4 decreases
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The storage battery generally used in electric power station is__________?
A. Nickel-cadmium battery
B. Zinc-carbon battery
C. Lead-acid battery
D. None of the above
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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
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Word of the Day
18 Jul
Proactive
(of a person or action) creating or controlling a situation rather than just responding to it after it has happened.
فعال، پیش قدمی کے ذریعے صورتحال پر قابو پانیوالا

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