Welcome to our school exams series, where we provide termly examination questions and answers across different subjects. In today’s post, we’ll focus on Basic Technology Exam Questions for JSS3 First Term. You’ll find complete questions with answers, along with practical tips to help you excel in your exams. Don’t hesitate to use the comments section if you have questions or need clarification.
Basic Technology introduces students to the practical world of science, engineering, and technology. It teaches fundamental concepts in tools, machines, energy, technical drawing, woodwork, metalwork, and safety practices. The subject helps learners understand how technology operates in daily life and how various devices function.
Studying Basic Technology equips students with problem-solving skills, creativity, and practical knowledge, preparing them for future technical and vocational education. It is offered in both primary and secondary schools in Nigeria, helping learners gain technological literacy and hands-on skills essential for modern living.
Basic Technology Exam Questions for JSS3 First Term are divided into two sections:
- Section A
- Section B
The first section, namely, Section A is the objective test, and students are expected to attempt all questions in the section. Section B is the theory part, and students are expected to follow specific instruction and answer the required number of questions.
Note that what you have below are JSS3 Basic Technology First Term Exam Past Questions made available to assist students in their revision for 1st term examinations and also teachers in structuring standard examinations.
SECTION A: Objectives
Instruction: Answer all questions in this section by choosing from the options lettered A—D. Each question carries equal marks.
1. The electric generating plant at Kainji Dam uses ___________ for the production of electricity.
A. coal B. gas
C. water D. oil
2. The generating power plants convey the electrical energy to ___________.
A. Subpower stations
B. Step-up transformer
C. Step-down transformers
D. Meters
3. The high tension cables use aluminum wire because it is ___________.
A. The best conductor
B. Cheap
C. Costly
D. Shining
4. The various overhead power lines are interconnected to form ___________.
A. International grid
B. Great lines
C. Voltage
D. power grid
5. Power is a product of ___________ and ___________.
A. Voltage and current
B. Current and capacitance
C. Energy and current
D. Capacitance and charge
6. Low frequency transmission of electricity motors ___________.
A. High current and high voltage
B. Low current and low voltage
C. high current and low voltage
D. High voltage and low current
7. The final stage of carrying electricity to consumers is called ___________.
A. Generation
B. Transmission
C. Distribution
D. Electrification
8. In a transformer, it is better to use:
A. Steel iron core
B. Soft iron core
C. Hard steel core
D. Carbon steel core
9. In a transformer, the secondary coil always:
A. Has more coils than the primary coil
B. is the output
C. Is the input
D. has equal number of coils with the primary coils
10. Which of these is a circuit breaker?
A. Current B. Switch
C. Plug D. Fuse
11. In a domestic insulated copper cable, one of these carries the current?
A. Live line
B. Neutral line
C. Earth line
D. Plug
12. One of these is not a wiring accessory:
A. Cable B. Lampholder
C. Plier D. Clip
13. The forging method used to extend the width of metal at the expense of the length is called ___________.
A. Fullering
B. Heading
C. Upsetting
D. P-upsetting forging
14. To form the connecting rod for an internal combustion engine, we employ:
A. Fullering B. Punching
C. Forging D. Up-setting
15. Which is odd?
A. Crank press machine
B. Swaging press machine
C. Screw press machine
D. Hydraulic press machine
16. Which of these is most beneficial in brake system?
A. Drop hammer
B. Power hammer
C. Hydraulic press
D. Screw press
17. The ability of a metal to be drawn into wires is called:
A. Brittle B. Conductivity
C. Ductility D. Inductance
18. Electrical power consumption is measured in:
A. Ohms B. Farads
C. Henry D. Kilowatt hour
19. Which of these is used to store charge?
A. Capacitor B. Resistor
C. Transistor D. Inductor
20. Which of these is odd?
A. Drop hammer
B. Swaging press
C. Crank press
D. Hydraulic press
21. Which of these statements is wrong?
A. Drop hammer
B. Hydraulic press is transmitted equally at all points
C. Cold forging is more desirable for soft metals
D. Hot forging is more flexible than cold forging
22. Which motion is most fundamental of all motions?
A. Rotary
B. Circular
C. Vibrational
D. Linear
23. Name the toothed wheels used in the transmission of motion in machines
A. Clutch B. Pinion
C. Gears D. Spurs
24. Which device is used to control the flow of current in a circuit?
A. Capacitor B. Resistor
C. Transistor D. Cell
25. Which of these are slow speed gears?
A. Helical gears
B. Spiral bevel gears
C. Spur gears
D. Worm gears
26. Loud speakers do convert ___________ energy into ___________ energy.
A. Electrical, sound
B. Electrical, mechanical
C. Chemical, electrical
D. Mechanical, sound
27. The suitable metal used for cutting tools is ___________.
A. Cast iron
B. High carbon steel
C. Wrought iron
D. Mild steel
28. The difference between the high pressure and low pressure in fluid flow is called ___________.
A. Air Flow
B. Pressure flow
C. Altitude
D. Pressure gradient
29. The distribution network in electricity does not include one of these;
A. Two-wire cables
B. Three-wire
C. Power substations
D. Turbines
30. The ability of fluids to resist flow is called
A. Resistance B. Reluctance
C. Viscosity D. Resistivity
31. The ratio of force output to the force input is called
A. Efficiency
B. Mechanical advantage
C. Speed ratio
D. Velocity
32. A device uses to decrease the supply of voltage in a circuit is called
A. Step down transformer
B. Step up transformer
C. Step in transformer
D. Step out transformer
33. The main sources of electricity in Nigeria are:
A. Thermal and hydro
B. Solar and thermal
C. Solar and Kainji dam
D. Hydro and solar panels
34. The unit for measuring resistance in a circuit is
A. Ampere B. Ohms
C. Volt D. Farad
35. The company in charge of distribution of electricity in the South East part of Nigeria is:
A. PHCN B. NTDC
C. AEDC D. NEPA
36. Which of the following is not correct about linear motion?
A. If the motion is uniform, the velocity is constant
B. If the motion is uniform, the velocity is zero
C. If the motion is uniform, the velocity varies
D. If the motion is not uniform, the velocity varies
37. Fluid refers to
A. liquid and solid
B. air and gas
C. Air and solid
D. Liquid and gas
38. When the air or water flow in orderly manner and streamlined and in a straight line, the flow is:
A. Turbulent B. Violent
C. Turbine D. Laminar
39. The following devices make reversible rotary motions except:
A. Clutches B. Gravity
C. Ratchets D. Vehicle brakes
40. A simple machine made up of a rigid rod and pivot is known as:
A. Lever B. Bicycle
C. Jack D. Motion
41. The part of a vehicle that provides a flexible link between the engine and the gearbox is
A. Brakes B. Ratchets
C. Clutches D. Lever
42. Which of these is not correct about gears?
A. They enable machines move at different speeds and in desired directions
B. They employ chains to function
C. They employ belts to function
D. When one gear is fitted to another, the gears are said to be meshed
43. A substance that helps to reduce friction is called
A. Lubricant B. Frictioner
C. Lubrication D. resistor
44. The resistance to motion which rises when two surfaces slide over one another is called:
A. lubrication B. resistor
C. lubricant D. friction
45. The movement of air from a region of high pressure to a region of low pressure is referred to as
A. air movement
B. air flow
C. liquid movement
D. water movement
46. An electric circuit can contain the following elements except
A. street light
B. switch
C. voltage source
D. current source
47. Gears are teethed wheels that pass____________along.
A. driver and follower
B. motion and power
C. axles and shaft
D. power and engine
48. Which of these machines does not have thread?
A. Screw driver B. nut
C. Windlass D. bolt
49. Gas consists of molecules which are in rapid____________ all the time.
A. state B. condition
C. form D. motion
50. Friction can be very useful in
A. energy consumption
B. wearing and tear of surface
C. heat generation
D. brake application
51. An example of preventive maintenance is: ______________
A. providing drainage on new road
B. replacing worn-out part of a bicycle
C. removing leaking zinc sheets in a building
D. changing under-sized bolts in a car
E. pumping a deflated tyre
52. Driving tools exclude _____________
A. saw B. hammer
C. punch D. mallet
E. screw driver
53. Chairs, tables and beds require regular maintenance; as a result, the screws are tightened using:
A. hammers B. file
C. punches D. mallets
E. screwdrivers
54. The battery in a radio is kept active by ___________
A. leaving the radio on at all times
B. cleaning the oxide deposits regularly and switching off when not in use
C. removing the batteries to dry off
D. supporting with flat batteries
E. servicing it by somebody who is not a technician
55. The common cooking appliance suitable in rural areas which have no wood or electricity is the ___________
A. gas cooker
B. electric cooker
C. kerosene stove
D. oven
E. microwaves
56. Electric kettles are better maintained by: ___________
A. waiting until the kettle begins to make noise
B. switching of when it boils
C. opening the spout for steam to escape
D. washing with soap and water
E. cutting off the wires
57. Which of the following should best be used together with a duster for dusting varnished wooden tables?
A. soap B. paraffin oil
C. petrol D. water
E. engine oil
58. A teaspoonful of _________ should be added to the water used in boiling out new aluminium cooking pots to prevent discolouration.
A. salt B. borax C. milk
D. oil E. sand
59. The property which causes a metal to return to its original shape after being bent or stretched is known as __________
A. Conductivity B. Ductility
C. Elasticity D. Malleability
E. Plasticity
60. Ductility is the ability of a metal to ____________
A. conduct electricity
B. conduct heat
C. resist elasticity
D. resist heat
E. be drawn to thin wire
SECTION B: Essay
INSTRUCTION – Answer all five (5) questions in this section.
1a. Define laminar flow.
b. What is the difference between laminar and turbulent flows?
c. List two applications of air and water flows
2a. What is a linkage?
b. Explain linear motion
c. What is a speed ratio?
d. What is a coupler?
3a. What is a gear?
d. List four types of gears
c. List two functions of clutches.
4a. What is mechanical advantage?
b. List four devices that can make reversible rotary motion
e. State two uses of gears
5a. What is an electric circuit?
b. What is the difference between wiring tools and wiring materials, giving two examples of each.
c. State four uses of electricity.
Answers to Basic Technology Exam Questions for JSS3 First Term
Answers to Section A (Objective Test)
The following table gives the correct answers to the objective section of Basic Technology exam questions for JSS3 First term. If you are using a mobile device, hold the table and scroll to the right or left for a complete view.
| Q.No | Ans | Q.No | Ans | Q.No | Ans |
|---|---|---|---|---|---|
| 1 | C | 2 | B | 3 | B |
| 4 | D | 5 | A | 6 | D |
| 7 | C | 8 | B | 9 | B |
| 10 | B | 11 | A | 12 | C |
| 13 | A | 14 | C | 15 | B |
| 16 | C | 17 | C | 18 | D |
| 19 | A | 20 | B | 21 | A |
| 22 | D | 23 | C | 24 | B |
| 25 | D | 26 | A | 27 | B |
| 28 | D | 29 | D | 30 | C |
| 31 | B | 32 | A | 33 | A |
| 34 | B | 35 | A | 36 | B |
| 37 | D | 38 | D | 39 | B |
| 40 | A | 41 | C | 42 | B |
| 43 | A | 44 | D | 45 | B |
| 46 | A | 47 | B | 48 | A |
| 49 | D | 50 | D | 51 | E |
| 52 | A | 53 | E | 54 | B |
| 55 | C | 56 | B | 57 | B |
| 58 | B | 59 | C | 60 | E |
So here you have the answers to the objective section of Basic Technology Exam Questions for JSS3 First term. Use the comments section to let me know if you have any questions you would want me to clarify or discuss further.
Answers to Section B (Theory)
1a. Define laminar flow.
Laminar flow is a smooth, orderly flow of a fluid in which adjacent layers slide past one another in parallel paths with little or no mixing (streamlined flow).
1b. Difference between laminar and turbulent flows.
Laminar flow: orderly layers, low mixing, usually at low speed/low Reynolds number; velocity at a point is steady.
Turbulent flow: irregular, with eddies and vortices, strong mixing, usually at higher speed/high Reynolds number; velocity fluctuates.
1c. Two applications of air and water flows.
Air: (i) Ventilation/air-conditioning duct design, (ii) Aerodynamics of vehicles/aircraft wings for reduced drag and lift generation.
Water: (i) Pipe networks/irrigation lines, (ii) Hydro-turbines for electric power.
2a. What is a linkage?
A linkage is a system of rigid bodies (links) joined by pivots/slider joints to guide and transmit motion and force in machines (e.g., four-bar, slider-crank).
2b. Explain linear motion.
Linear motion is movement in a straight line. Its key quantities are displacement, velocity and acceleration; examples include the to-and-fro (reciprocating) motion of a piston or a drawer sliding on rails.
2c. What is a speed ratio?
Speed ratio (velocity ratio) is the ratio of the input speed to the output speed of a mechanism (e.g., driver pulley/gear speed ÷ driven pulley/gear speed).
2d. What is a coupler?
A coupler connects two moving members to transmit motion (as in a four-bar mechanism), or connects two shafts (shaft coupling) to transmit power while accommodating slight misalignment.
3a. What is a gear?
A gear is a toothed wheel that meshes with another toothed wheel (or rack) to transmit motion and power, changing speed, torque and/or direction.
3d. List four types of gears.
Spur gears; Helical gears; Bevel gears; Worm and worm wheel (also: Rack and pinion).
3c. List two functions of clutches.
(i) Engage/disengage the engine from the gearbox for smooth starting and stopping; (ii) Allow gear changing without stalling (also provides overload protection in some machines).
4a. What is mechanical advantage?
Mechanical Advantage (MA) is the ratio of the load (output force) to the effort (input force): MA = Load ÷ Effort.
4b. List four devices that can make reversible rotary motion.
Clutches; Gear trains; Vehicle brakes (allow controlled start/stop and reversal in systems); Ratchets with reversing mechanisms (or reversible electric motors with gearing).
4e. State two uses of gears.
(i) To change speed and torque between shafts; (ii) To change the direction of rotation or translate rotary to linear motion (rack and pinion).
5a. What is an electric circuit?
An electric circuit is a closed path through which electric current flows, consisting typically of a source (battery/mains), conductors, loads (lamps/motors), and control/protection devices (switches, fuses).
5b. Difference between wiring tools and wiring materials (two examples each).
Wiring tools are instruments used to install or service wiring. Examples: Screwdriver, Combination pliers (also: wire stripper, test lamp).
Wiring materials are the components installed in the system. Examples: Cables/conductors, Switches (also: sockets, conduit, clips, tape).
5c. State four uses of electricity.
Lighting and illumination; Powering appliances and machines; Heating and cooking; Communication and ICT (radios, TVs, routers) (also: pumping water/industrial processes).
