ADDA Drafting Certification: Competency 1(General Terminology) Questions with Correct Answers

Centimeters Correct Answer 1/100th of a meter Millimeters Correct Answer 1/1000ths of a meter Meter Correct Answer basis for metric system; = to 100 cm, 1000mm, 10 dm, etc. Decimeter Correct Answer 1/10th of a meter American Society of Mechanical Engineers Correct Answer ASME Dekameter Correct Answer 10 meters Kilometer Correct Answer 100 dekameters; 1000 meters 25.4 Correct Answer millimeters per inch Fraction Correct Answer part of a whole, such has 1/2 or 1/4 1:2 Correct Answer half scale 2:1 Correct Answer double size Drawn to scale Correct Answer drawing an object to a set proportion Metric system Correct Answer decimal system of wights and measures based on the meter and the kilogram; SI (international system) linear unit is millimeter Lettering Correct Answer single stroke gothic; TOM Q. VAXY is all the letters that are as tall as they are wide; drawn w/HB Foreshortened Correct Answer surfaces do not give a clear or accurate representation of the size or shape of the surface or features and should not be dimensioned; lines and surfaces that are inclined to the picture plane appear this way Bisecting Correct Answer dividing into two equal parts; drawn by setting compass length greater than half of line's length and striking arc w/center at each endpoint, then drawing a line perpendicular to the original line through the point where the arcs crossed Equilateral Correct Answer all side lengths are equal Concentric Correct Answer having a common center