DT term 3 Flashcards
what are the 6 types of soil
clay, loam, peaty, saline, silty, sand
what is saline contaminated with
salt
what is a butt joint
it is the most simple joint they stay together with a mechanical fastener
what is a mitre joint
a mitre joint is used for edges, doorframes, windows and others
what is a dovetail joint
a dove tail joint is a sign of expert craftmanship. they are made of interlocking trapezoidal shapes
what is a mortise joint
while it looks like a butt joint it is really interlocked pieces which is more strong
what are the 8 different bits of the drill press
feed handle, table (platform), crank handle, chuck, drill bit, base, chuck key, on/off switch
what does ppe stand for
personal protective equipment
what are some ppe rules
no lose clothing,
tie up long hair,
wear appropriate ppe,
be aware of on/off switch,
Do not operate if the drill bit is crooked or damaged,
Select only drills that are sharp, in good condition
describe loam
loam is a mix of sand, clay, silt and organic matter.
describe clay
Clay, because of its density, retains moisture well. It also tends to be more nutrient-rich than other soil types.
describe sand
A sandy soil is so much easier to work with than clay soils, as it is lighter weight
describe peaty
Peaty soil is a type of soil made from decomposed organic materials and repels moisture
describe saline
saline is contaminated with salt
describe silt
Silt has smaller particles compared to sand Easier to work with than clay soils Better water holding capacity than sandy soils
