In a lead-acid battery the energy is stored in the form of
electromagnetic energy
electrostatic energy
charged ions
chemical energy
chemical energy
Extent of corrosion in the underground metal work depends upon
amount of moisture
type of metals
all above factors
type of soil chemicals
all above factors
Charging a sulphated battery at high rate results in
all above
damage to separators cell caps covers and battery case due to excessive temperature
warping of plates
boiling of electrolyte due to gassing
all above
Which of the following is incorrect ?
A carbon-zinc cell has unlimited shelf life
A lead-acid cell can be recharged
A storage cell has a reversible chemical reaction
A primary cell has an irreversible chemical reaction
A carbon-zinc cell has unlimited shelf life
Which of the following has lower sp. gravity V
Any of the above
Water
Dilute H2S04
Concentrated H2SO4
Water
Petroleum jelly is applied to the electrical connections to the lead-acid battery
prevent corrosion
prevent local heating
prevent short-circuiting
reduce path resistance
prevent corrosion
_____ of electrolyte indicates the state of charge of the battery
viscosity
mass
colour
specific gravity
specific gravity
The following indicate that battery on charge has attained full charge
colour of electrode
gassing
all above
specific gravity
all above
Which among the following constitutes the major load for an automobile battery ?
Self starter
Spark plugs
Parking lights
Brake light
Self starter
Specific gravity of electrolyte in Edison cell is
1.21
0.95
0.8
1.1
1.21
पोस्ट अच्छी लगी हो तो प्लीज नीचे दिए गए लिंक पर क्लिक कर शेयर जरुर करें
0 Comments