Under normal charging rate, the charging current should be__________?
		A. 10% of capacity
B. 20% of capacity
C. 30% of capacity
D. 40% of capacity
		A. 10% of capacity
B. 20% of capacity
C. 30% of capacity
D. 40% of capacity
		A. excessive gassing will occur
B. temperature rise will occur
C. bulging and buckling of plates will occur
D. all above will occur
		A. allowing a battery to stand in discharged condition for a long time
B. topg up with electrolyte
C. persistent undercharging
D. low level of electrolyte
E. all above
		A. Newton’s law
B. Faraday’s law of electromagnetic
C. Faraday’s law of electrolysis
D. Gauss’s law
		A. resistance of electrolyte
B. electrode resistance
C. surface contact resistance between electrode and electrolyte
D. all above
		A. nickel-cadmium battery
B. zinc-carbon battery
C. lead-acid battery
D. none of the above
		A. low sp. gravity electrolyte
B. abnormal high temperature
C. reduced gassing on charge
D. all above