EG - Class 12 - PA1 Exam
St. COLUMBA’S SCHOOL Ashok Place, N. Delhi – 110001 PA 1, 1st July 2021 Class XII, Engineering Graphics Time: 1 hr 20 mins MM : 40 Instructions 1. Attempt all questions. 2. All dimensions are in mm. 3. Follow the SP: 46-1988 codes (with first angle projections) 4. Use both sides of the drawing sheet, if required. 5. Missing or mismatching dimensions, if any, may be suitably assumed 6. Diagrams are not to scale. Follow the dimensions only. 7. Draw neat projections/ views. Q 1 (a) Construct an Isometric scale of length 80 mm with subdivisions. (8) (b) Draw the isometric projection of a pentagonal pyramid of base edge 30 mm and 60 mm height, placed centrally on top of a hexagonal slab (prism) of base side 40 mm and height 30 mm.