Third Term Examination Basic Technology JSS 8 (Basic 2) – Exam Questions

BASIC TECHNOLOGY 

THIRD TERM EXAMINATION 

JUNIOR SECONDARY SCHOOLS 

JSS 2 (BASIC 8) 

SECTION A

Answer all questions. 

1. A ten –sided polygon is known as ____________.

(a) decagon

(b) nonagon

(c) octagon

(d) pentagon

2. Which of the following is not a product of rubber?

(a) Tyre

(b) Tube

(c) Glove

(d) Chair

3. ____________ is the force which opposes motion.

(a) Gravity

(b) Magnetism

(c) Friction

(d) Work

4. All are made of ceramics except ____________.

(a) mug

(b) plate

(c) tiles

(d) button

5. ½bh is the area of ____________.

(a) circle

(b) triangle

(c) rectangle

(d) circle

6. Hydraulic machines make use of ____________ as fluid power.

(a) solid

(b) liquid

(c) gas

(d) air

7. B in the ABC of first aid means ____________.

(a) breadth

(b) breathing

(c) bread

(d) breaking

8. One of the following is not a type of belt and pulleys.

(a) Flat belt and pulleys

(b) Variable belts and pulleys

(c) V-belts and pulleys

(d) T – belts and pulleys

9. ____________ operation can be defined as activities that involve the saving of lives.

(a) Surgical

(b) Rescue

(c) Machine

(d) Manual

10. All are hydraulic machines except ____________.

(a) force pump

(b) centrifugal pump

(c) vacuum pump

(d) hydraulic jack

11. The gear that drives the other gears is called ____________.

(a) driving gear

(b) driven gear

(c) drove gear

(d) drive gear

12. ____________ is not a type of forging.

(a) Cold forging

(b) Warm forging

(c) Hot forging

(d) Luke – warm forging

13. All are types of drive mechanisms except ____________.

(a) ropes

(b) belts

(c) chairs

(d) gears

14. ____________ is used for making jewelry and metals.

(a) Copper

(b) Tin

(c) Gold

(d) Aluminum

15. ____________ represents number of teeth on gear A.

(a) NA

(b) NB

(c) AN

(d) AB

16. All of the following are advantages of using chain drives except ____________.

(a) high efficiency

(b) small tension

(c) no slippage

(d) quiet operation

17. A device that can be used for wetting plants in a garden by spraying water into the air is known as ____________.

(a) sprinkler

(b) pump

(c) driver

(d) compressor

18. All are major types of gears except ____________.

(a) internal

(b) external

(c) rack and pinion

(d) straight

19. ____________ is a type of mechanism used in bicycles.

(a) Chain

(b) Belt

(c) Gear

(d) Rope

20. Lubrication in gears help to reduce ____________.

(a) force

(b) friction

(c) gravity

(d) magnetism

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SECTION B

Answer all questions. 

QUESTION 1

In not less than six lines, explain site preparation and setting out for building construction.

QUESTION 2

A. Define drive mechanism.

B. List any two types of building services.

QUESTION 3

Write out two advantages and a disadvantage of belt and chain drive each.

QUESTION 4

A. The gear A has 100 teeth while gear B has 25 teeth, calculate the gear ration.

B. Write two uses of pneumatic machines.