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Basic Tech. Grade 8T

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

Which of the following is not used in making glass?

a)

Sand

b)

Lime

c)

Potash

d)

Clay

2.

Glass is used to manufacture eye glasses because of this property.

a)

Brittleness

b)

Resistance to corrosion

c)

Transparent

d)

Resistance to heat

3.

Which of the following is not used in making ceramics?

a)

Lime

b)

Clay

c)

Cement

d)

Mud

4.

The following are products of ceramics except

a)

Flower vase

b)

Tiles

c)

Wash basin

d)

Electric bulbs

5.

------- is a type of solid mineral substance that is usually hard and shiny and that heat and electricity can travel through.

a)

Plastic

b)

Rubber

c)

Metal

d)

Ceramics

6.

Some metals have the ability to be hammered or beaten into shape without cracking. This quality i known as

a)

Malleability

b)

Ductility

c)

Fusibility

d)

Toughness

7.

One of these is not a reason for wood seasoning.

a)

It makes the wood stronger

b)

it makes the wood lighter in weight

c)

it makes wood to take (absorb) preservatives easily

d)

it makes the wood heavier

8.

1.           --------- is the process of splitting log into smaller commercial sizes either at the sawmill or at the forest.

a)

wood conversion

b)

wood slicing

c)

wood retaining

d)

wood poisoning

9.

-------- is the process by which metals can be softened

a)

Casting

b)

Smelting

c)

Annealing

d)

Riveting

10.

--------- is the process of reducing the water content of wood.

a)

Annealing

b)

Drying

c)

Seasoning

d)

Toasting

11.

One of the following is not a method of timber conversion.

a)

plain sawn

b)

quarter sawn

c)

half sawn

d)

rift sawn

12.

Another name for wood is called -------------

a)

Timber

b)

Tempest

c)

Tensor

d)

Tenor

13.

------------- is the process of cutting down trees in the forest either manually or mechanically

a)

Timber felling

b)

Timber casting

c)

Timber moving

d)

Timber uprooting

14.

The following are factors to be considered before falling timber except one

a)

age

b)

season of the year

c)

the method of felling

d)

none of the above

15.

One of the following is not a property of metal.

a)

ductility

b)

brittleness

c)

magnetic

d)

softness

16.

------------ is the process of melting and pouring molten metal into  the  mould to take the shape of the mould when it cools down or solidifies.

a)

casting

b)

forging

c)

toughness

d)

brittleness

17.

1.           The process of extracting metals from iron-ore dug from the ground is known as

a)

smelting

b)

casting

c)

forming

d)

blasting

18.

----------- is the process by which metals can be softened.

a)

annealing

b)

casting

c)

smelting

d)

moulding

19.

All of these are examples of Thermoplastics except.

a)

bucket

b)

cup

c)

plates

d)

phone accessories

20.

One of the following is not a property of plastic.

a)

They are very light

b)

They are very cheap in price

c)

They are insulators

d)

They conduct electricity

21.

One of these is not an advantage of plastics.

a)

They are lightweight

b)

They can be moulded into different shapes and sizes

c)

They are relatively inexpensive to produce

d)

They are good conductors of heat and electricity

22.

Rubber can be used to make all of the following except.

a)

electrical insulators

b)

tyres for vehicles

c)

hand gloves

d)

ceramics

23.

--------- can conduct heat and electricity

a)

metal

b)

rubber

c)

ceramics

d)

plastics

24.

The property of a metal that it attract iron is known as

a)

Magnetic

b)

Fusibility

c)

Durability

d)

Brittleness

25.

The property of metal that it can be drawn or stretch into wire is called

a)

Ductility

b)

Durability

c)

Density

d)

Conductivity