Question is ⇒ A floating battery is one, Options are ⇒ (A) which is charged and discharged simultaneously., (B) in which battery voltage is equal to charger voltage., (C) which supplies current intermittently and also during idle period gets charged., (D) none of the above., (E) , Leave your comments or Download question paper.

Question is ⇒ A floating battery is one, Options are ⇒ (A) which is charged and discharged simultaneously., (B) in which battery voltage is equal to charger voltage., (C) which supplies current intermittently and also during idle period gets charged., (D) none of the above., (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	A floating battery is one
A.	which is charged and discharged simultaneously. [Wrong Answer]
B.	in which battery voltage is equal to charger voltage. [Wrong Answer]
C.	which supplies current intermittently and also during idle period gets charged. [Correct Answer]
D.	none of the above. [Wrong Answer]
View Answer 24 -18 Explanation:- Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

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⇒ The emf of primary cell depends upon the
physical dimensions of a cell.
nature of electrolyte.
nature of electrode.
both (b) and (c).

⇒ Which of the following statements is incorrect about lead acid batteries ?
The electrolyte in weak sulphuric acid.
When fully charged both of the plates become lead-per-oxide.
The number of plates is always odd.
The number of negative plates is one more than the number of positive plates.

⇒ Which of the following substances on adding in electrolyte helps in producing bright finish?
Glycerine.
Dextrol.
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Any of these.

⇒ Short circuiting of a cell may be caused by
buckling of plates.
breakdown of one or more separators.
excessive accumulation of sediments at the bottom of the cell.
lead particles forming circuits between positive and negative plates.

⇒ Standard cell
will have precise and accurate constant voltage when current drawn from it is few microamperes only.
will have precise and accurate constant voltage when few milliamperes are drawn from it.
will continue to have constant voltage irrespective of loading conditions.
can supply voltages up to 10 V.

⇒ What causes lower efficiency of alkali cell as compared to the acid cell ?
Lower emf
Small amount of electrolyte
Longer life
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⇒ During charging and discharging of an Edison cell
electrolyte does not take part in chemical reaction.
emf remains the same.
corrosive fumes are produced.
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check the electrolyte level.
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⇒ Battery charging equipment should be installed
in well ventilated, clean and dry place.
as near as practical to the battery under charge.
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⇒ Which of the following acts as depolariser in Lechlanche cell ?
MnO₂
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⇒ For a group of cells when internal resistance of the group is equal to external load resistance, the group will deliver maximum
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⇒ Common impurity in a battery electrolyte is
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iron.
lead crystals.
sodium chloride.

⇒ A floating battery is one
which is charged and discharged simultaneously.
in which battery voltage is equal to charger voltage.
which supplies current intermittently and also during idle period gets charged.
none of the above.

⇒ The capacity of a lead acid battery does not depend upon
charge rate.
discharge rate.
temperature.
density of electrolyte & quantity of active material.

⇒ The relative density of the electrolyte of acid accumulator should not be allowed to fall below
1.80
1.50
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⇒ The capacity of a lead acid battery is adversely affected by increase in
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charge rate.
temperature.
specific gravity of the electrolyte.

⇒ Which of the following statements is correct about lead acid batteries ?
It delivers current as soon as its components are put together.
Density of electrolyte increases while delivering current
lt does not deliver current on putting its components together until it is supplied electrical energy from an external source
It has lead as positive plates.

⇒ Which of the following tests is performed for ascertaining whether the battery plates are defective or not?
Specific gravity test.
High discharge test.
Cadmium test.
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⇒ Which of the following cells is more likely to be damaged due to short circuiting ?
Daniel cell
Dry Cell
Acid cell
Fuel cell

⇒ Cells are connected in parallel in order to increase the
life of the cells.
efficiency.
current capacity.
voltage rating.

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boiling of electrolyte owing to gassing.
damage to separators, cell caps, covers and battery case due to excessive temperature.
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discharge rate.
state of charge.
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removal of scale, grease etc. from the surface.
none of the above.

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kW.
ampere hours.
joules.

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