CELLS AND BATTERIES - Practice Mode

1) What is the colour of positive electrode in fully charged lead acid battery?

Red colour Grey colour Reddish brown Spongy grey colour

Correct Answer: Reddish brown

2) What is the specific gravity of concentrated sulphuric acid?

1.175 1.245 1.835 1.945

Correct Answer: 1.835

3) Which energy is converted by the battery to produce electricity?

Electrical energy into light energy Chemical energy into electrical energy Mechanical energy into electrical energy Electrical energy into mechanical energy

Correct Answer: Chemical energy into electrical energy

4) What is the total voltage of six 1.5 V cells, connected in series?

3 VDC 6 VDC 9 VDC 12 VDC

Correct Answer: 9 VDC

5) Which electrolyte is used in maintenance free lead acid batteries?

Gelled electrolyte Sodium electrolyte Ceramic electrolyte Potassium electrolyte

Correct Answer: Gelled electrolyte

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