dt revision

Pregunta	Respuesta
what are the energy sources available to us that are renewable	wind power hydorelectric solar biomass
what are fossil fuels	fuels that take millions of years to make such as dinosaur fossils and plants and shrubs they include oil petrol/diesel coal
what workshop rules do you follow	if welding or brazing, only 2 people in the area at a time ppe personal protective equipment for both welding and brazing wear head protection/head visors if welding then wear a fireproof jacket to protect yourself do not run or mess about in if carrying something sharp or in general do not operate industrial machines unless you have teacher supervision do not touch presume anything is cool and wear gloves if picking up to wash under tap
materials and tools used during the year	MDF -wood files to smoothen out materials try squre-to measure out wood and to help mark mild steel-ferrous metals drill chisles tolerance +/- how accurate it can be flux pink liquid used in brazing to melt and hold metals together extractor used in brazing and welding to extract the potentially lethal gases batch manufacture-manufacturing batches of products

Resumen del Recurso

	Creado por William Gladson hace más de 6 años