Which of the following primary cells has the highest voltage___________ ?
Which of the following primary cells has the highest voltage___________ ? A. Manganese-alkaline B. Carbon-zincC. Lithium D. Mercury
Which of the following primary cells has the highest voltage___________ ? A. Manganese-alkaline B. Carbon-zincC. Lithium D. Mercury
For a cell to work, which of the following condition(s) become necessary ___________? A. Two electrodes of different meta’s should be inserted in the electrolyte, not touching each other B. Electrolyte must chemically react with one of the electrodes C.…
Charging a sulphated battery at high rate results in___________? A. boiling of electrolyte due to gassing B. warg of plates C. damage to separators, cell caps covers and battery case due to excessive temperatureD. all above
Extent of corrosion in the underground metal work depends upon___________? A. amount of moisture B. type of metals C. type of soil chemicalsD. 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 humidityD. All of the above
Which of the following primary cells has the lowest voltage_________ ? A. Lithium B. Zinc-chlorideC. 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 sedimentE. any one of above
Charging of sulfated battery produces _________ heat A. no B. very little C. lessD. more
Weston standard cell at 20°C has voltage of _______ volts A. 0.8 B. 0.9C. 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. 1.5C. 2.4 D. 2.9