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Worksheetstest 1_building construction and materials
Total questions: 12
Worksheet time: 9mins
wood is one of the most traditional materials, however it can eventually degraded by .......
fungi
water
insects
bacteria
preservation of wood is important due to two reason below. Select the correct answer.
control usage of wood
ensure good timber quality
versatility / aesthetic purposes
durability
Define aggregate in civil engineering term.
A clay that prominently composed into individual particles.
stone that prominently composed into individual particles.
A mass of crush stone, gravel , clay, silts and sand that prominently composed of individual particles.
A crush jewel that prominently composed of individual particles.
select THREE (3) natural source of aggregates.
gravel pits
fossil fuels
river run deposits
rock quarries
there are THREE (3) direction to be consider when cutting out tree, such as...
longitudinal
latitude
radial
tangential
Select FOUR (4) reason why wood continues to be an important material in the construction industry.
aesthetic
durability
easy to use
availability
low cost
it is located at the central core of the tree, it can be solid, porous or hollow. what is 'it'?
heartwood
sapwood
cambium
pith
Particle surface texture are consider as a very important properties for the use as asphalt concrete.
select TWO (2) correct types of particle surface of this kind.
hexagon shape aggregates
rounded aggregates
rough surface aggregates
angular aggregates
its function to storehouse for starches and as a pipeline to transport sap. what is 'it'?
latewood
pith
heartwood
sapwood
the wood compromised of two section. first is heartwood that is often dark color,
second is (a) that surrounded the first section.
what is the general usage of aggregates in concrete?
as an adhesive between Portland cement and aggregates in the mix
as a hardener to add strength to the mix
as a filler to reduce the amount of cement paste needed in the mix
what is the content of wood that can be determine by 3 physical properties; such as weight, shrinkage & strength.
(a)
