A. the loss of capacity of the cell

B. the decrease of the specific gravity

C. the low voltage of the cell on discharge

A. none of the above

C. lead and lead peroxide

D. lead sulphate and lead

B. 1 V

C. 0.9 V

D. 0.8 V

A. NaOH

B. onlyH2S04

C. only water

B. putting plates very close together

C. using vent plug to permit gas formed during discharge

D. increasing the plate area

A. life of the cell is reduced

C. open plates are converted to lead sulphate

D. capacity of the cell is reduced

B. 48 amperes for 1 hour

C. 8 amperes for 6 hours

D. 24 amperes for 2 hours

A. less than the battery voltage

B. the same as the battery voltage

D. none of the above

A. much more than

B. more than

D. equal to

A. to corrode the positive plates into lead peroxide thereby weakening them physically

B. produce gassing

D. increase the internal resistance of the battery

A. charged state

C. both (A) and (B)

D. active state

A. rate of discharge

C. temperature

D. density of electrolyte

E. quantity of active materials

B. increase the efficiency

C. increase the voltage output

D. increase the internal resistance

A. displaced sideways

B. raised

D. undisturbed

A. always less than one

B. none of the above

C. just one

A. aluminium

C. rubber

D. bakelite

B. 40% of capacity

C. 30% of capacity

D. 20% of capacity

A. nickel hydroxide

B. 21% solution of KOH

D. powdered iron and its oxide

A. eight years

B. ten years

D. seven years

A. an equalizing charge

B. floating charge

C. trickle charge

B. Any of the above

C. Concentrated H2SO4

D. Dilute H2S04

B. remains the same

C. becomes zero

D. decreases

A. PbO

B. Pb

C. Pb02

A. reduce path resistance

B. prevent short-circuiting

D. prevent local heating

B. watt-hours

C. watts

D. amperes

B. Comparatively longer shelf life under adverse conditions of high temperature and humidity

C. High power to weight ratio

D. Flat discharge current-voltage curve

A. rubber boots and gloves

B. rubber

D. goggles or other face shield

A. none of the above

C. temperature of electrolyte

D. output voltage

A. excessive gassing under load conditions

B. excessive drop in the specific gravity of electrolyte even when the cell is on open circuit

C. both A. and (b)

B. 700

C. 500

D. 1000

A. 4%

C. 6%

D. 2%

B. Lead-acid battery

C. Dry cell battery

D. Silver oxide battery

A. Edison cell

B. Lead-acid cell

C. Deniell cell

B. remains constant

C. none of the above

D. increases

A. four

B. two

D. three

A. silver oxide

B. copper

D. lead

B. thin copper wires

C. rigid cables

D. thin aluminium wires

A. surface contact resistance between electrode and electrolyte

B. resistance of electrolyte

D. electrode resistance

A. faulty separators

B. excessive accumulation of sediment

C. buckling of plates

E. lead particles forming circuit between positive and negative plates

B. Manganese-alkaline

C. Mercury

D. Carbon-zinc

A. 1.2 V

B. 2.1 V

C. 1 V

A. 90 to 95%

B. 25 to 35%

C. 40 to 60%

A. 0.8

B. 1.5

D. 0.9

A. reducing time of charging

B. increasing cell capacity

D. avoiding excessive gassing

A. Boltzman

C. time

B. increases the temperature resulting in buckling of plates

C. produces excessive gassing

D. loosens the active material

A. lead oxide

B. zinc powder

C. lead

A. type of metals

B. type of soil chemicals

D. amount of moisture

B. colour of electrode

C. gassing

D. specific gravity

A. temperature rise will occur

B. bulging and buckling of plates will occur

C. excessive gassing will occur