Extent of corrosion in the underground metal work depends upon___________?

A. Amount of mositure
B. Type of metals
C. Type of soil chemicals
D. All above factors

Mercury cell has which of the following characteristics ____________?

A. Flat discharge current-voltage curve
B. High power to weight ratio
C. Comparatively longer shelf life under adverse conditions of high temperature and humidity
D. All of the above

Which of the following primary cells has the lowest voltage_________ ?

A. Lithium
B. Zinc-chloride
C. Mercury
D. Carbon-zinc

Short circuiting of a cell may be caused____________?

A. buckling of plates
B. faulty separators
C. lead particles forming circuit between positive and negative plates
D. excessive accumulation of sediment

Charging of sulfated battery produces _________ heat

A. No
B. Very little
C. Less
D. More

Weston standard cell at 20°C has voltage of _______ volts

A. 0.8
B. 0.9
C. 1.0187
D. 1.5

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

Specific gravity of electrolyte in Edison cell is_____________?

A. 0.8
B. 0.95
C. 1.1
D. 1.21

During the idle period of the battery, strong electrolyte tends to change the active material of the cell into____________?

A. Pb02
B. Pbsc-4
C. Pbo
D. Pb

The body of Edison cell is made of___________?

A. Bakelite
B. Rubber
C. Nickel plated steel
D. Aluminium