Millwright Level 1: Basic Layout (15104-06) Questions and Answers Fully Solved 100%

Prick Punches - Answer-Made of steel and is about 4 to 6 inches long, used with small hammer to mark centers and to mark centers and to make small indentations along layout lines. The end of the punch to a point with an angle of about 60-degrees. Steel Rules - Answer-Made of tempered steel that has graduations down to 1/64 of an inch. Some steel rules are marked on both sides. One side may be marked in eighths and sixteenths of an inch, the other side in thirty-seconds and sixty-fourths of an inch. They are available in lengths from 1 to 144 inches. They are used to measure distances and to mark lines. Scribing Perpendicular Lines to Base Lines Using Squares - Answer-Use a framing square and straightedge. -locate and scribe a base line -align the straightedge with the base line -clamp the straightedge firmly to the material -place the blade of the framing square against the straightedge -scribe a line along the tongue of the square -move the framing square a specified distance along the straightedge, and scribe another. Combination Set - Answer-Can be used as a combination square to lay out 45-degree angles, 90-degree angles, parallel lines and to measure heights. It can be used as a protractor to measure angle to within 1-degree accuracy or it can be used to locate centers of round or square bars and serve as a steel rule, level, or marking gauge. Protractors - Answer-Made of plastic or light-gauge metal, used to lay out and measure angles. Basic Layout - Answer-This includes measuring and marking lines, centers, angles, and circles to lay out shapes for fabrication, bolt patterns, and equipment locations. Dividers - Answer-Made of hardened steel points attached to two legs, used to transfer measurements, compare distances, and to scribe circles and arcs. Trammel Points - Answer-Used to scribe large circles and arcs. The point on a trammel can be replaced with a marking tool such as a pen.Center Punches - Answer-Similar to a prick punch, except that its point is more blunt and round at a 90-degree angle. Used to enlarge center marks made with a prick punch. This is done so that a drill can start easily when drilling holes.