A cable with a single conductor is known as _____ cable.
A. Double-core
B. Multi-core
C. Single-core
D. None of the above
Electrolysis and Storage of Batteries
Electrolysis and Storage of Batteries Mcqs
Highest purity copper is obtained by?
A. roasting
B. smelting
C. electroplating
D. None of them
Dry cell is modification of?
A. Lead-acid cell
B. Edison cell
C. Deniell cell
D. Leclanche cell
The life of a lead-acid battery is expected to be?
A. two to five years
B. ten to fifteen years
C. two months
D. one year
Higher current density is usually recommended for?
A. bronze plating
B. chromium plating
C. tin plating
D. cadmium plating
Two batteries having unequal e.m.f.?
A. cannot be connected in parallel
B. may be connected in series or in parallel
C. can be connected in series only
D. cannot be connected in series
Charging of sulphated battery produces ____ heat?
A. very little
B. less
C. no
D. more
Which of the following has lower sp. gravity?
A. Water
B. Dilute H2S04
C. Concentrated H2S04
D. None of them
One ampere-hour charge is equivalent to?
A. 360 coulombs
B. 2000 coulombs
C. 200 coulombs
D. 3600 coulombs
The electrode for a battery must be?
A. a good conductor of electricity
B. a semi-conductor
C. an insulator
D. None of them