This is a past paper for the General Certificate of Education (Ordinary Level) Examination for Design and Construction Technology I, conducted in 2020. This paper is in the English medium and was set by the Department of Examinations Sri Lanka. It provides valuable practice for students preparing for their O/L examination. The questions cover various aspects of design and construction, testing the students' knowledge and problem-solving skills. Students can use this past paper to familiarize themselves with the exam format, question types, and difficulty level. We encourage students to attempt the paper under timed conditions to simulate the actual exam environment. This resource is provided to aid students in their exam preparation. Copyright © Department of Examinations Sri Lanka. For more educational resources, visit apedanuma.lk.