WorksheetsBasic Tech. Grade 8T
Total questions: 25
Worksheet time: 13mins
Which of the following is not used in making glass?
Sand
Lime
Potash
Clay
Glass is used to manufacture eye glasses because of this property.
Brittleness
Resistance to corrosion
Transparent
Resistance to heat
Which of the following is not used in making ceramics?
Lime
Clay
Cement
Mud
The following are products of ceramics except
Flower vase
Tiles
Wash basin
Electric bulbs
------- is a type of solid mineral substance that is usually hard and shiny and that heat and electricity can travel through.
Plastic
Rubber
Metal
Ceramics
Some metals have the ability to be hammered or beaten into shape without cracking. This quality i known as
Malleability
Ductility
Fusibility
Toughness
One of these is not a reason for wood seasoning.
It makes the wood stronger
it makes the wood lighter in weight
it makes wood to take (absorb) preservatives easily
it makes the wood heavier
1. --------- is the process of splitting log into smaller commercial sizes either at the sawmill or at the forest.
wood conversion
wood slicing
wood retaining
wood poisoning
-------- is the process by which metals can be softened
Casting
Smelting
Annealing
Riveting
--------- is the process of reducing the water content of wood.
Annealing
Drying
Seasoning
Toasting
One of the following is not a method of timber conversion.
plain sawn
quarter sawn
half sawn
rift sawn
Another name for wood is called -------------
Timber
Tempest
Tensor
Tenor
------------- is the process of cutting down trees in the forest either manually or mechanically
Timber felling
Timber casting
Timber moving
Timber uprooting
The following are factors to be considered before falling timber except one
age
season of the year
the method of felling
none of the above
One of the following is not a property of metal.
ductility
brittleness
magnetic
softness
------------ 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.
casting
forging
toughness
brittleness
1. The process of extracting metals from iron-ore dug from the ground is known as
smelting
casting
forming
blasting
----------- is the process by which metals can be softened.
annealing
casting
smelting
moulding
All of these are examples of Thermoplastics except.
bucket
cup
plates
phone accessories
One of the following is not a property of plastic.
They are very light
They are very cheap in price
They are insulators
They conduct electricity
One of these is not an advantage of plastics.
They are lightweight
They can be moulded into different shapes and sizes
They are relatively inexpensive to produce
They are good conductors of heat and electricity
Rubber can be used to make all of the following except.
electrical insulators
tyres for vehicles
hand gloves
ceramics
--------- can conduct heat and electricity
metal
rubber
ceramics
plastics
The property of a metal that it attract iron is known as
Magnetic
Fusibility
Durability
Brittleness
The property of metal that it can be drawn or stretch into wire is called
Ductility
Durability
Density
Conductivity
