Basic Electrical MCQs with answers in PDF format, DAE Electrical MCQs with answers in PDF format, and Basic Electrical Engineering MCQs for PPSC, FPSC, NTS, KPPSC, WAPDA, Railways, SPSC, and MES exams.
The capacity of a lead-acid cell depends on ____ ?
A. density of electrolyte
B. rate of discharge
C. temperature
D. all aboveIn a lead-acid cell, lead is called as ____ ?
A. negative active material
B. positive active materi
C. passive material
D. none of the aboveUndercharging of chemical batteries ____.
A. ncreases the temperature
B. reduces specific gravity of the electrolyte
C. increases specific gravity of the electrolyte
D. produces excessive gassingOver charging of chemical battery ___ ?
A. increases the temperature resulting in buckling of plates
B. produces excessive gassing
C. loosens the active material
D. all of the aboveWhen the specific gravity of the electrolyte of a lead-acid cell is reduced to 1.1 to 1.15 the cell is in ____ ?
A. discharged state
B. charged state
C. both (a) and (b)
D. active stateThe specific gravity of electrolyte is measured by:
A. psychrometer
B. hydrometer
C. hydrometer
D. hygrometerThe open circuit voltage of any storage cell depends wholly upon ____.
A. its chemical constituents
B. its temperature
C. its chemical constituents
D. all of the aboveElectrolyte used in a lead-acid cell is ____.
A. only H2SO4
B. only water
C. dilute H2SO4
D. NaOHLead-acid cell has a life of nearly charges and discharges:
A. 1250
B. 1000
C. 500
D. 700The capacity of a lead-acid cell does not depend on its:
A. rate of charge
B. rate of discharge
C. temperature
D. quantity of active material