Related Questions

In leaf springs, the maximum bending stress developed in the plates is (where W = Load acting on the spring, $$l$$ = Span of the spring, n = Number of plates, b = Width of plates and t = Thickness of plates)
A $$\frac{{{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$
B $$\frac{{3{\text{W}}l}}{{2{\text{nb}}{{\text{t}}^2}}}$$
C $$\frac{{2{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$
D $$\frac{{3{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$
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
The positive plates of a lead acid battery has
A Lead peroxide (PbO2)
B Spongy lead (Pb)
C Lead sulphate (PbSO4)
D Sulphuric acid (H2SO4)
The discharged lead acid battery has on its plates
A Lead peroxide (PbO2)
B Spongy lead (Pb)
C Lead sulphate (PbSO4)
D Sulphuric acid (H2SO4)
During charging the specific gravity of the electrolyte of a lead-acid battery
A increases
B decreases
C remains the same
D becomes zero
While preparing electrolyte for a lead-acid battery
A water is poured into acid
B acid is poured into water
C anyone of the two can be added to other chemical
D none of the above
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
Petroleum jelly is applied to the electrical connections to the lead-acid battery
A prevent local heating
B prevent short-circuiting
C reduce path resistance
D prevent corrosion
The common impurity in the electrolyte of lead-acid battery is
A chlorine
B dust particles
C lead crystals
D iron
Which acid is used in Lead storage battery?
A Sulphuric acid
B Nitric acid
C Hydrochloric acid
D Acetic acid

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