2026 WAEC Computer Hardware and GSM Repairs OBJ and Essay Questions and Answers

2026 WAEC Computer Hardware and GSM Repairs OBJ and Essay Questions and Answers

PAPER 1 – OBJECTIVE TEST

Time: 1 Hour
Instructions: Answer all questions. Choose the correct option A–D.

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OBJECTIVE QUESTIONS (1–50)

1. The component that performs calculations in a computer system is the
A. Hard disk
B. Motherboard
C. CPU
D. RAM
Answer: C

2. The main circuit board of a computer is called the
A. Processor
B. Motherboard
C. Power pack
D. Chipset
Answer: B

3. RAM is classified as
A. Secondary memory
B. Permanent memory
C. Volatile memory
D. Optical memory
Answer: C

4. A damaged SMPS will most likely affect the
A. Monitor
B. Power supply
C. Keyboard
D. Printer
Answer: B

5. POST stands for
A. Power On Self Test
B. Power Output System Test
C. Program On System Test
D. Peripheral Output Self Test
Answer: A

6. The BIOS is stored in
A. RAM
B. ROM
C. Cache
D. Hard disk
Answer: B

7. The device used to prevent power surge is
A. Stabilizer
B. Router
C. Scanner
D. Modem
Answer: A

8. SATA cables are used to connect
A. Monitor
B. Keyboard
C. Storage devices
D. Mouse
Answer: C

9. A beep code during startup indicates
A. Virus attack
B. Hardware fault
C. Software installation
D. Internet problem
Answer: B

10. The tool used to test power output is
A. Screwdriver
B. Multimeter
C. Pliers
D. Soldering iron
Answer: B

2026 WAEC Computer Hardware and GSM Repairs OBJ and Essay Questions and Answers

11. GSM stands for
A. Global Service Machine
B. Global System for Mobile Communication
C. General System Mobile
D. Global Satellite Mode
Answer: B

12. The IMEI number is used to
A. Identify SIM
B. Identify device
C. Format phone
D. Boost signal
Answer: B

13. A faulty charging port can cause
A. No display
B. No network
C. Battery not charging
D. No ringtone
Answer: C

14. The component that stores GSM firmware is
A. Flash memory
B. RAM
C. CPU
D. SIM
Answer: A

15. Soldering iron is used for
A. Formatting
B. Testing
C. Joining components
D. Charging battery
Answer: C

16. LCD means
A. Light Circuit Display
B. Liquid Crystal Display
C. Low Current Display
D. Liquid Cable Device
Answer: B

17. A cracked screen affects
A. Software
B. Display output
C. Processor
D. Network
Answer: B

18. SIM card stores
A. Operating system
B. Contacts and subscriber info
C. Phone battery
D. Flash files
Answer: B

19. Overheating of CPU is prevented using
A. RAM
B. Heat sink
C. Flash drive
D. LAN cable
Answer: B

20. The CMOS battery maintains
A. Power supply
B. BIOS settings
C. RAM data
D. Hard disk data
Answer: B

21. A short circuit in GSM board is detected using
A. Screwdriver
B. Multimeter
C. Flash tool
D. Charger
Answer: B

22. Virus removal in computer requires
A. UPS
B. Antivirus
C. Keyboard
D. Adapter
Answer: B

23. Hard disk bad sectors cause
A. Fast processing
B. Data corruption
C. Strong network
D. Loud sound
Answer: B

24. A computer technician must use ESD strap to prevent
A. Fire
B. Electric shock
C. Static damage
D. Virus
Answer: C

25. The bootable device priority is set in
A. Windows
B. BIOS
C. RAM
D. Monitor
Answer: B

26. A laptop not powering on may have faulty
A. Display
B. Keyboard
C. Power jack
D. Speaker
Answer: C

27. The function of a router is to
A. Print
B. Connect networks
C. Scan
D. Type
Answer: B

28. Touchscreen malfunction may be due to
A. Corrupt OS
B. Damaged digitizer
C. Weak signal
D. SIM error
Answer: B

29. The first troubleshooting step is
A. Replace motherboard
B. Identify the problem
C. Format system
D. Buy new device
Answer: B

30. Firmware flashing is done to
A. Break phone
B. Update software
C. Damage CPU
D. Remove battery
Answer: B

31. SSD is faster than HDD because it
A. Uses magnet
B. Has moving parts
C. Uses flash memory
D. Uses tape
Answer: C

32. Network IC controls
A. Camera
B. Charging
C. Signal reception
D. Display
Answer: C

2026 WAEC Computer Hardware and GSM Repairs OBJ and Essay Questions and Answers

33. A blue screen error indicates
A. Printer issue
B. Critical system failure
C. Loud speaker
D. Strong internet
Answer: B

34. The safest way to clean motherboard is using
A. Water
B. Petrol
C. Isopropyl alcohol
D. Oil
Answer: C

35. Antivirus protects against
A. Dust
B. Malware
C. Heat
D. Power
Answer: B

36. GSM antenna is responsible for
A. Charging
B. Network reception
C. Sound
D. Display
Answer: B

37. A swollen battery should be
A. Repaired
B. Ignored
C. Replaced
D. Heated
Answer: C

38. Formatting removes
A. Hardware
B. Software data
C. Screen
D. SIM
Answer: B

39. UPS stands for
A. Universal Power Supply
B. Uninterruptible Power Supply
C. Unlimited Power System
D. Unified Power Support
Answer: B

40. BIOS password reset may require
A. Removing CMOS battery
B. Flash drive
C. Keyboard
D. Monitor
Answer: A

41. Laptop overheating may cause
A. Faster speed
B. Automatic shutdown
C. Better graphics
D. No problem
Answer: B

42. IC means
A. Internal Circuit
B. Integrated Circuit
C. Internet Cable
D. Internal Chipset
Answer: B

43. Flashing box is used for
A. Charging
B. Unlocking and flashing
C. Printing
D. Typing
Answer: B

44. Malware includes
A. Trojan
B. Monitor
C. UPS
D. Adapter
Answer: A

45. Power supply is measured in
A. Volts
B. Litres
C. Kilograms
D. Inches
Answer: A

46. A phone with no service may have faulty
A. Speaker
B. Network IC
C. LCD
D. Battery cover
Answer: B

47. Motherboard short may cause
A. No boot
B. Fast boot
C. Strong signal
D. Loud sound
Answer: A

48. Heat gun is used in GSM repair for
A. Painting
B. Removing IC
C. Typing
D. Charging
Answer: B

49. Computer maintenance includes
A. Cleaning and updates
B. Breaking parts
C. Overheating
D. Ignoring faults
Answer: A

50. The safest storage device for backup is
A. External drive
B. RAM
C. Cache
D. BIOS
Answer: A

2026 WAEC Computer Hardware and GSM Repairs OBJ and Essay Questions and Answers

PAPER 2 – ESSAY

Time: 2 Hours
Answer Five Questions Only

QUESTION 1 (Compulsory)

(a) Define computer hardware.
(b) List and explain five internal hardware components of a computer.

ANSWER:

Computer hardware refers to the physical components of a computer system.

Components:

1. CPU – Processing unit
2. RAM – Temporary memory
3. Hard Disk/SSD – Storage
4. Motherboard – Main board
5. Power Supply Unit – Supplies power

QUESTION 2

Explain five causes and solutions to laptop not powering on.

ANSWER:

1. Faulty charger – Replace
2. Damaged power jack – Repair
3. Dead battery – Replace
4. Faulty motherboard – Diagnose and repair
5. Blown fuse – Replace

QUESTION 3

Describe GSM phone troubleshooting steps.

ANSWER:

1. Identify problem
2. Visual inspection
3. Test with multimeter
4. Replace faulty part
5. Test device

QUESTION 4

Explain BIOS and its functions.

ANSWER:

BIOS initializes hardware and loads operating system.

Functions:
• POST
• Boot management
• Hardware configuration
• Security settings

QUESTION 5

Discuss safety precautions in computer and GSM repair workshop.

ANSWER:

• Use ESD strap
• Avoid water
• Proper ventilation
• Use correct tools
• Disconnect power before repair

QUESTION 6

Explain flashing of GSM phones and its importance.

ANSWER:

Flashing is reinstalling firmware to fix software issues.

Importance:
• Remove virus
• Fix boot loop
• Update OS
• Unlock device

QUESTION 7

Differentiate between HDD and SSD.

ANSWER: