Estimatics Questions with Detailed Verified Answers (100% Correct Answers) /Already Graded A+

Area of a square or rectangle Ans: Base x Height Area of a triangle Ans: 1/2 (Base x Height) Area of a trapezoid Ans: [(Base1 + Base2) / 2] x Height Area of a circle Ans: pi (3.14) x radius of the circle Top chord Ans: serves as a roof rafter Bottom chord Ans: serves as a ceiling joist; the length of this chord is the "span" Webbing Ans: bracing that ties top and bottom chords together Gussets Ans: wood or metal plates that hold the pieces together at the joints On-Center (o.c.) of the trusses Ans: is the distance from the centerline of one framing member to the center of the next framing member 3 - Tab Composition shingles 2 Approved By: vPretest - Stuvia US Ans: these range from 200 lb. to 240 lb. and are packaged three bundles per square Waste for a gable roof - retangles Ans: 10% Waste for a hip roof - trapezoids and parallelograms Ans: 15% per square for c