1. Which device commonly uses dry cells?
A) Refrigerator
B) Television
C) Wall clock
D) Air conditioner
Answer: C) Wall clock
2. The chemical energy in a cell is converted into:
A) Heat energy only
B) Electrical energy
C) Light energy only
D) Sound energy
Answer: B) Electrical energy
3. Which of the following is a primary cell?
A) Lead-acid battery
B) Lithium-ion battery
C) Dry cell
D) Nickel-cadmium battery
Answer: C) Dry cell
4. A battery is a combination of:
A) Wires
B) Bulbs
C) Two or more cells
D) Switches
Answer: C) Two or more cells
5. Which battery is commonly used in cars?
A) Dry cell
B) Button cell
C) Lead-acid battery
D) Solar cell
Answer: C) Lead-acid battery
6. Rechargeable batteries are also known as:
A) Primary cells
B) Secondary cells
C) Simple cells
D) Dry cells
Answer: B) Secondary cells
7. Which part of a cell is the positive terminal?
A) Cathode
B) Anode
C) Electrolyte
D) Separator
Answer: A) Cathode
8. The liquid or paste that allows ions to move inside a cell is called:
A) Electrode
B) Insulator
C) Electrolyte
D) Conductor
Answer: C) Electrolyte
9. Button cells are commonly used in:
A) Cars
B) Watches
C) Refrigerators
D) Fans
Answer: B) Watches
10. The voltage of a standard dry cell is approximately:
A) 1.5 V
B) 5 V
C) 12 V
D) 220 V
Answer: A) 1.5 V
11. Which battery is widely used in mobile phones?
A) Lead-acid
B) Lithium-ion
C) Dry cell
D) Zinc-carbon
Answer: B) Lithium-ion
12. Connecting cells in series increases:
A) Current only
B) Voltage
C) Resistance
D) Size
Answer: B) Voltage
13. Which symbol represents a cell in a circuit diagram?
A) A circle
B) Two unequal parallel lines
C) A triangle
D) A square
Answer: B) Two unequal parallel lines
14. The negative terminal of a cell is called:
A) Cathode
B) Anode
C) Core
D) Coil
Answer: B) Anode
15. Which of the following is an example of a rechargeable battery?
A) Zinc-carbon cell
B) Alkaline cell
C) Nickel-metal hydride
D) Simple cell
Answer: C) Nickel-metal hydride
16. Overcharging a battery may cause:
A) Cooling
B) Damage
C) Increased lifespan
D) Reduced voltage
Answer: B) Damage
17. Which household item typically uses AAA batteries?
A) Remote control
B) Washing machine
C) Microwave oven
D) Geyser
Answer: A) Remote control
18. The main advantage of rechargeable batteries is:
A) Single use
B) High cost
C) Reusability
D) Low voltage
Answer: C) Reusability
19. Solar rechargeable batteries store energy from:
A) Wind
B) Water
C) Sunlight
D) Coal
Answer: C) Sunlight
20. Corrosion in batteries mainly affects the:
A) Plastic cover
B) Terminals
C) Label
D) Switch
Answer: B) Terminals
22. Which battery type is commonly used in laptops?
A) Lead-acid
B) Lithium-ion
C) Zinc-carbon
D) Dry cell
Answer: B) Lithium-ion
22. The unit used to measure battery capacity is:
A) Volt
B) Ohm
C) Ampere-hour
D) Watt
Answer: C) Ampere-hour
23. If batteries are connected in parallel, the main effect is increase in:
A) Voltage
B) Capacity
C) Resistance
D) Temperature
Answer: B) Capacity
24. A leaking battery should be:
A) Recharged
B) Repaired
C) Used again
D) Properly disposed
Answer: D) Properly disposed
25. Which metal is commonly used in lead-acid batteries?
A) Copper
B) Iron
C) Lead
D) Silver
Answer: C) Lead
26. Which battery is environmentally friendlier due to less toxic materials?
A) Nickel-cadmium
B) Lithium-ion
C) Mercury cell
D) Zinc-carbon
Answer: B) Lithium-ion
27. The outer casing of a dry cell is usually made of:
A) Plastic
B) Zinc
C) Iron
D) Aluminum
Answer: B) Zinc
28. A power bank contains which type of battery?
A) Dry cell
B) Lead-acid
C) Lithium-ion
D) Mercury cell
Answer: C) Lithium-ion
29. The flow of electrons in a battery-powered circuit is from:
A) Positive to negative terminal
B) Negative to positive terminal
C) Both directions
D) No direction
Answer: B) Negative to positive terminal
30. Storing batteries in a cool, dry place helps to:
A) Decrease voltage
B) Increase leakage
C) Extend battery life
D) Reduce size
Answer: C) Extend battery life