v weld 1102 Assign @ - Date: L e W ment #2: Estimating Principles IMS F24 Read all of the questions carefully and be sure to answer in the format requested. All answers are to be completed on these pages numbered 1-7. Calculate the length of arc for each of the following; give your answer in the units shown and round to two (2) decimal places. (Use the m button on your calculator). 13 a. 155when D = 1.25m b. 110 when r = 2525mm c. 60 when D = 69 inches d. 47whenr = 16.25 2. Two square pads are to be welded onto the circumference of a 12-foot diameter tank. If the pads i are to be 80 apart, calculate the centre to centre distance between pads. Give the answer in feet ' and inches to the nearest %" reduced to its lowest terms. (Use the 7 button on your calculator). 3. Four equally spaced platform clips spanning 90 are to be welded to the circumference of a 2250 mm diameter tower. Give the centre to centre measurement between the clips. Round off your answer to the nearest mm. A drawing gives the pitch of a sloped roof as 4:12 with a run of 18 metres. What are the vertical and slant lengths? Round your answer to two (2) decimal places. a. Vertical length = b. Slant length = LA