Examination on Basic Technology
Class: JSS 2
Term: Second Term
Time: 1 Hour
Total Marks: 70

SECTION A: OBJECTIVES (40 Marks)
Instruction: Answer all questions.

1. ________ is a closed plane figure with four straight sides and four interior angles. (a) Polygon (b) Quadrilateral (c) Triangle (d) Circle
2. Which of the following is a type of quadrilateral? (a) Pentagon (b) Hexagon (c) Rhombus (d) Octagon
3. The main reason for applying oil to a machine part is to ________. (a) increase friction (b) reduce friction (c) make it shiny (d) make it heavier
4. All of these are common types of woodwork machines except a ________. (a) circular saw (b) drilling machine (c) lathe machine (d) sanding machine
5. Which of these is NOT a disadvantage of friction? (a) Wears out machine parts (b) Produces heat (c) Causes loss of energy (d) Helps us to walk
6. A ________ is a plane figure bounded by three or more straight lines. (a) quadrilateral (b) polygon (c) circle (d) arc
7. The correct step in constructing a regular hexagon involves using a ________. (a) ruler only (b) protractor only (c) compass and ruler (d) set square only
8. Which of these is not a common type of lubricant? (a) Grease (b) Oil (c) Water (d) Graphite
9. An example of a regular polygon is a ________. (a) scalene triangle (b) square (c) rectangle (d) trapezium
10. Which of the following describes the process of making a figure smaller than its original size? (a) Enlargement (b) Reduction (c) Rotation (d) Reflection
11. All of these are safety precautions when using woodwork machines except ________. (a) wearing safety goggles (b) keeping the work area clean (c) wearing loose clothing (d) ensuring blades are sharp
12. The main reason for regular maintenance of metalwork machines is to ________. (a) increase their aesthetic value (b) prolong their lifespan (c) make them noisy (d) consume more power
13. Which of these is NOT a cause of friction? (a) Roughness of surfaces (b) Interlocking of irregularities (c) Smoothness of surfaces (d) Force pressing surfaces together
14. ________ is the resistance to motion when two surfaces are in contact. (a) Gravity (b) Momentum (c) Friction (d) Velocity
15. The ________ machine is used for cutting wood into various shapes and sizes. (a) drilling (b) planing (c) circular saw (d) grinding
16. An example of an irregular quadrilateral is a ________. (a) square (b) rhombus (c) trapezium (d) rectangle
17. Which of the following is a common application of friction? (a) Sliding on ice (b) Brakes in vehicles (c) Oiling a hinge (d) Rolling a ball on a smooth surface
18. All of these are types of metalwork machines except a ________. (a) power hacksaw (b) shaping machine (c) lathe machine (d) jigsaw
19. Which of these does NOT reduce friction? (a) Lubrication (b) Polishing surfaces (c) Using ball bearings (d) Increasing surface roughness
20. The process of making a plane figure larger is called ________. (a) reduction (b) enlargement (c) translation (d) inversion
21. A polygon with five sides is known as a ________. (a) quadrilateral (b) hexagon (c) pentagon (d) octagon
22. The care and maintenance of machines help to prevent ________. (a) efficiency (b) breakdown (c) speed (d) production
23. Which of the following lubricants is typically semi-solid? (a) Oil (b) Grease (c) Water (d) Air
24. A ________ is a quadrilateral with all four sides equal and all angles right angles. (a) rectangle (b) rhombus (c) square (d) parallelogram
25. The main advantage of friction is that it allows us to ________. (a) slide easily (b) walk and grip (c) waste energy (d) wear out shoes
26. Which of these is not a regular polygon? (a) Equilateral triangle (b) Square (c) Regular pentagon (d) Rectangle
27. A woodworking machine used for making holes is the ________ machine. (a) sanding (b) drilling (c) planing (d) routing
28. The area of a square with side length ‘s’ is calculated as ________. (a) 2s (b) s+s (c) s² (d) 4s
29. Which of the following is a characteristic of an irregular polygon? (a) All sides are equal (b) All angles are equal (c) Sides and angles are not necessarily equal (d) It has only three sides
30. ________ is a quadrilateral with only one pair of parallel sides. (a) Parallelogram (b) Rhombus (c) Trapezium (d) Square
31. The process of cleaning a metalwork machine to remove swarf and debris is part of its ________. (a) operation (b) construction (c) maintenance (d) design
32. Which of these is a liquid lubricant? (a) Graphite (b) Grease (c) Engine oil (d) Talcum powder
33. The effect of friction that generates heat is often seen in ________. (a) cooling systems (b) braking systems (c) lubrication (d) smooth surfaces
34. Which of the following is a definition of a polygon? (a) A curved closed figure (b) A plane figure with only two sides (c) A closed plane figure with straight sides (d) An open figure with straight sides
35. All of these are safety rules for operating metalwork machines except ________. (a) wearing appropriate PPE (b) ensuring guards are in place (c) operating unfamiliar machines (d) knowing the emergency stop button
36. The reduction of a plane figure means making it ________. (a) bigger (b) smaller (c) rotate (d) reflect
37. ________ is a woodwork machine used for smoothing wooden surfaces. (a) Lathe (b) Planer (c) Grinder (d) Power hacksaw
38. Which of these is NOT a type of quadrilateral? (a) Kite (b) Octagon (c) Parallelogram (d) Rectangle
39. The main purpose of lubrication is to ________. (a) increase wear (b) reduce friction (c) create noise (d) generate heat
40. A regular polygon has ________ sides and ________ angles. (a) unequal, unequal (b) equal, unequal (c) unequal, equal (d) equal, equal

SECTION B: THEORY (30 Marks)
Instruction: Answer any THREE questions.

1. (a) Define a quadrilateral. (2 marks)
(b) List any three types of polygons and state the number of sides for each. (3 marks)
(c) Briefly explain the difference between enlargement and reduction of plane figures. (3 marks)
(d) Sketch a regular hexagon. (2 marks)

2. (a) State two safety precautions to observe when using any woodwork machine. (2 marks)
(b) Identify three common types of metalwork machines. (3 marks)
(c) Explain why regular care and maintenance are important for both woodwork and metalwork machines. (3 marks)
(d) Give one use of a circular saw. (2 marks)

3. (a) What is friction? (2 marks)
(b) List three advantages of friction in everyday life. (3 marks)
(c) Describe two methods of reducing friction. (3 marks)
(d) Name two types of lubricants. (2 marks)

4. (a) How is the area of a rectangle calculated? (2 marks)
(b) Draw a sketch of a trapezium and label its parallel sides. (3 marks)
(c) Explain the function of a drilling machine in either woodwork or metalwork. (3 marks)
(d) State one disadvantage of friction. (2 marks)

Objective Marking Scheme
Question 1 – ✅ (b) Quadrilateral
Question 2 – ✅ (c) Rhombus
Question 3 – ✅ (b) reduce friction
Question 4 – ✅ (c) lathe machine
Question 5 – ✅ (d) Helps us to walk
Question 6 – ✅ (b) polygon
Question 7 – ✅ (c) compass and ruler
Question 8 – ✅ (c) Water
Question 9 – ✅ (b) square
Question 10 – ✅ (b) Reduction
Question 11 – ✅ (c) wearing loose clothing
Question 12 – ✅ (b) prolong their lifespan
Question 13 – ✅ (c) Smoothness of surfaces
Question 14 – ✅ (c) Friction
Question 15 – ✅ (c) circular saw
Question 16 – ✅ (c) trapezium
Question 17 – ✅ (b) Brakes in vehicles
Question 18 – ✅ (d) jigsaw
Question 19 – ✅ (d) Increasing surface roughness
Question 20 – ✅ (b) enlargement
Question 21 – ✅ (c) pentagon
Question 22 – ✅ (b) breakdown
Question 23 – ✅ (b) Grease
Question 24 – ✅ (c) square
Question 25 – ✅ (b) walk and grip
Question 26 – ✅ (d) Rectangle
Question 27 – ✅ (b) drilling
Question 28 – ✅ (c) s²
Question 29 – ✅ (c) Sides and angles are not necessarily equal
Question 30 – ✅ (c) Trapezium
Question 31 – ✅ (c) maintenance
Question 32 – ✅ (c) Engine oil
Question 33 – ✅ (b) braking systems
Question 34 – ✅ (c) A closed plane figure with straight sides
Question 35 – ✅ (c) operating unfamiliar machines
Question 36 – ✅ (b) smaller
Question 37 – ✅ (b) Planer
Question 38 – ✅ (b) Octagon
Question 39 – ✅ (b) reduce friction
Question 40 – ✅ (d) equal, equal