Question is ⇒ In lead acid batteries, sedimentation occurs due to, Options are ⇒ (A) idleness foralongeiperiod., (B) overcharging at slow rate., (C) overcharging at high rate, (D) slow charging at low rate., (E) , Leave your comments or Download question paper.

Question is ⇒ In lead acid batteries, sedimentation occurs due to, Options are ⇒ (A) idleness foralongeiperiod., (B) overcharging at slow rate., (C) overcharging at high rate, (D) slow charging at low rate., (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	In lead acid batteries, sedimentation occurs due to
A.	idleness foralongeiperiod. [Wrong Answer]
B.	overcharging at slow rate. [Wrong Answer]
C.	overcharging at high rate [Correct Answer]
D.	slow charging at low rate. [Wrong Answer]
View Answer 16 -6 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

Previous question Next question

Also Read Similar Questions Below :

⇒ Who was the first to design storage cell ?
Plante
Galvani
Edison
Volta

⇒ Vent plug is provided in each lead acid cell to
pour water or electrolyte when needed.
check the electrolyte level.
allow escape out of gases during charging.
all of the above.

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

⇒ Overcharging of a lead acid battery would cause
excessive gassing.
loss of active material.
increase in temperature resulting in buckling of plates.
all of the above.

⇒ Charging of a sulphated battery at high rate causes
warping of plates.
boiling of electrolyte owing to gassing.
damage to separators, cell caps, covers and battery case due to excessive temperature.
all of the above.

⇒ The energy capacity of a storage battery is rated in
kWh.
kW.
ampere hours.
joules.

⇒ For keeping the lead acid battery terminals free from corrosion it is advisable to
keep electrolyte level low
apply petroleum jelly.
charge the battery at frequent intervals.

⇒ In a lead acid battery, fillers are provided to
facilitate flow of gasses
prevent flow of gasses.
recover acid losses through vapours.
reduce tendency for polarisation.

⇒ Rust, scales and oxides can be removed from a surface with the help of
various acids.
alkali and salt solution.
mechanical abrasion.
electrolytic cleaning any of the above.

⇒ Which of the following cells is more likely to be damaged due to short circuiting ?
Daniel cell
Dry Cell
Acid cell
Fuel cell

⇒ Addition of which of the following substances in electrolyte promotes smooth deposition?
Albumen.
Glucose.
Phenol.
Any of these.

⇒ The arrangement of 12 cells, each of internal resistance 1.5 ω, to give maximum current in external load resistance of 2 ω will be
all 12 cells in series.
all 12 cells in parallel.
4 cells in series with 3 rows in parallel.
3 cells in series with 4 rows in parallel.

⇒ In comparison to constant current charging method, the constant voltage charging method of charging a lead acid battery has the advantage(s) of
increasing capacity of the battery.
reducing charging time.
avoiding of excessive gassing.
both (b) and (c).

⇒ 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.

⇒ Sulphated cells are indicated by the
low specific gravity.
low voltage on discharge.
low capacity.
all of the above.

⇒ Five cells are connected in series in a row and then four such rows are connected in parallel to feed the current to a resistive load of 1.25 ω. Each cell has an emf of 1.5 V with an internal resistance of 0.2 ω. The current through the load will be
3.33 A
23.33 A
5 A
1 A

⇒ Battery charging equipment should be installed
in well ventilated, clean and dry place.
as near as practical to the battery under charge.
both (a) and (b).
wherever convenient.

⇒ First electrochemical cell was designed by
Galvani
Faraday
Lechlanche
None of these

⇒ During electrodeposition. the amounts of different substances liberated by same quantity of electricity are proportional to
atomic weights.
valency.
chemical equivalents.
atomic numbers

⇒ Pickling is
protection of surface from rusting.
a layer coating for preventing surface deterioration.
removal of scale, grease etc. from the surface.
none of the above.

⇒ In a lead acid battery, the level of the electrolyte should be
equal to that of the plates.
below the level of plates.
above the level of plates.
none of the above.

⇒ A 24 V battery of internal resistance r = 4 ω connected to a variable resistance R. The rate of heat dissipation in the resistor is maximum when the current drawn from the battery is I. The current drawn from the battery will be 1/2 when R is equal to
8 ω
12 ω
16 ω
20 ω

⇒ For achieving uniform thickness of deposit on irregular surface
anode and cathode are kept farther apart
anode and cathode are kept closer.
high current densities are used.
electrolyte is agitated constantly

⇒ What happens during the discharging of Edison cell ?
Relative density of electrolyte decreases
The emf does not change
The emf decreases
Relative density increases

⇒ Through an electrolyte an electric current is due to drift of
Free electrons
Positive and negative ions
Free electrons and holes
Protons

⇒ During charging and discharging of an Edison cell
electrolyte does not take part in chemical reaction.
emf remains the same.
corrosive fumes are produced.
nickel hydroxide remains unsplit.

⇒ In a lead acid battery, separators are provided to
reduce internal resistance.
facilitate flow of the current.
avoid internal short circuits.
increase the energy efficiency.

⇒ Which of the following acts as depolariser in Lechlanche cell ?
MnO₂
NH₄Cl
Mn₂O₃
ZnCI₂

⇒ 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.