BASIC TECHNOLOGY THIRD TERM EXAMINATION JUNIOR SECONDARY SCHOOLS JSS 2 (BASIC 8) EXAM QUESTIONS 

SECTION A – OBJECTIVES

INSTRUCTION – Choose the correct answer from the options A – D.

1. There are ______ major types of chain drives.

(a) 3

(b) 2

(c) 4

(d) 5

 

2. These are types of Belts and Pulleys except ______.

(a) Variable belt and pulley

(b) Flat belt and pulley

(c) Round belt and pulley

(d) V-belt and pulley

 

3. ______ is the force between two surfaces that are sliding or trying to slide across each other.

(a) Friction

(b) Lubrication

(c) Hydraulic

(d) Pneumatic

 

4. ______ is a plane figure bounded by three or more straight sides and angles.

(a) Pentagon

(b) Polygon

(c) Heptagon

(d) Decagon

 

5. These are disadvantages of friction except ______.

(a) it causes wear and tear of machines

(b) It slow down many processes

(c) it decreases the life expectancy of making parts of vehicles.

(d) it enables us to work freely

 

6. Formulae for finding the Area of a circle is ______.

(a) πr²

(b) lb

(c) ½bh

(d) bh

 

7. ______ involves the demolition or wrecking of buildings and other structures, clearing of building sites.

(a) Site Preparation

(b) Building Construction

(c) Building project

(d) None of the above

 

8. An octagon has how many sides ______.

(a) 5

(b) 8

(c) 6

(d) 7

 

9. A Pentagon has how many sides ______.

(a) 5

(b) 6

(c) 7

(d) 8

 

10. All of the following are examples of non-ferrous metals except ______.

(a) cast iron

(b) aluminum

(c) copper

(d) silver

 

11. Most of the floor tiles in various houses are made from ______.

(a) metals

(b) wood

(c) brass

(d) ceramics

 

12. ______ triangle has two of its angles equal.

(a) Equilateral

(b) Isosceles

(c) Scalene

(d) Right

 

13. These are benefits of site preparation except ______.

(a) removal of obstructions

(b) makes excavation easier

(c) land grading

(d) decreases lifespan of a project

 

14. One of these is used to lubricate friction.

(a) Grease

(b) Water

(c) Kerosene

(d) Petrol

 

15. ______ Systems are mechanical systems that use compressed gases.

(a) Pneumatic

(b) Hydraulic

(c) Metalwork

(d) Chain drive

 

16. ______ Systems are mechanical systems that use liquids in the transfer of forces.

(a) Hydraulic

(b) Pneumatic

(c) Metalwork

(d) Chain drive

 

17. These are examples of hydraulic machines except ______.

(a) air brakes on buses

(b) hydraulic jacks

(c) water wheels

(d) vacuum pump

 

18. These are examples of pneumatic machines except ______.

(a) water wheels

(b) pneumatic switches

(c) pneumatic bladder

(d) air brakes on buses

 

19. These are instruments needed for freehand sketching except ______.

(a) eraser

(b) soft lead pencil

(c) ruler

(d) sharper

 

20. These are techniques used in drawing except ______.

(a) shading

(b) sketching

(c) blending

(d) none of the above

 

SECTION B – FILL IN THE GAPS

21. ______ is such a drawing which is drawn without the use of measuring instruments.

22. ______ is the formulae for finding area of a triangle?

23. ______ are used for changing the direction of rotation in engines.

24. ______ and ______ are used for reducing friction.

25. Quadrilaterals has how many sides?

 

SECTION C – THEORY

INSTRUCTION – Answer three (3) only. Question is compulsory. 

QUESTION 1

A. What is freehand sketching?

B. State five techniques in drawing.

C. State three examples of Pneumatic machine. (15 marks)

 

QUESTION 2

A. Define Friction

B. State three advantages of friction

C. What is polygon? (10marks)

 

QUESTION 3

A. Define Plane figure

B. State any five plane figure you know

C. State three examples of metalwork machine. (10marks)

 

QUESTION 4

Calculate the area of the following:

A.

 

 

 

 

 

 

B.

C.

 

 

 

 

 

QUESTION 5

A. What are ferrous gMetals?

B. Give five examples of woodwork machines

C. What is Site preparation? (10marks)