A. dark grey
B. brown
C. dark brown
D. none of above
Related Mcqs:
- The active materials on the positive and negative plates of a fully charged lead-acid battery are_______?
A. lead and lead peroxide
B. lead sulphate and lead
C. lead peroxide and lead
D. none of the above - A battery of 6 cells will show a drop of _______ volts from fully charged state to fully discharged state
A. 1.0
B. 1.5
C. 2.4
D. 2.9 - When the lead-acid cell is fully charged, the electrolyte assumes _______ appearance
A. dull
B. reddish
C. bright
D. milky - In a lead-acid cell, if the specific gravity of sulphuric acid is 1.8, it will require following ratio of acid to water to get mixture of specific gravity of 1.3
A. 6 parts of acid to 4 parts of water
B. 4 parts of acid to 4 parts of water
C. 4 parts of acid to 6 parts of water
D. 4 parts of acid to 8 parts of water - During charging the specific gravity of the electrolyte of a lead-acid battery
A. increases
B. decreases
C. remains the same
D. becomes zero - The best indication about the state of charge on a lead-acid battery is given by____________?
A. output voltage
B. temperature of electrolyte
C. specific gravity of electrolyte
D. none of the above - The common impurity in the electrolyte of lead-acid battery is_____________?
A. chlorine
B. dust particles
C. lead crystals
D. iron - In a lead-acid battery the energy is stored in the form of___________?
A. charged ions
B. chemical energy
C. electrostatic energy
D. electromagnetic energy - In a battery cover is placed over the element and sealed to the top of the battery container. This is done____________?
A. to reduce evaporation of water from electrolyte
B. to exclude dirt and foreign matter from the electrolyte
C. to discharge both of the above functions
D. to discharge none of the above functions - In a lead-acid cell, lead is called as____________?
A. positive active material
B. negative active material
C. passive material
D. none of the above
