Pac welding - Study guides, Class notes & Summaries

A Class A fire extinguisher can be safely used on a/an _____ fire. A. Wood B. Grease C. Electrical D. Magnesium - Answer- A. Wood When welding in a confined space, the welder must have A. all equipment in a confined space B. a second welder inside the space C. an approved breathing device D. a watchperson outside the space - Answer- D. a watchperson outside the space On an OFC set up, the hose with the right-handed thread fittings connects to which gas? A. acetylene B. argon ...

Medical Medical -Surgical Nursing Surgical Nursing Surgical Nursing What is hypermetropia? - long sitedness, whereby light ray convergence at a point after the retina, and therfore out of focus. Nearby objects apphear blurry while distant objects are clearer what is myopia? - near/short sightedness, close is clear, far is blurry -usual starts in puberty and gets worse untill eye is fully grown. also in very young children. conditions associated with myopia? - squint- childhood eyes point in ...