Engineering Drawing Instruments MCQs 20 min Score: 0 Attempted: 0/20 Subscribe 1. Which drafting instrument is used to draw horizontal lines? (A) Scale (B) Set Square (C) Tee Square (D) All of these 2. Instrument used to draw curves: (A) Compass (B) All of these (C) Scale (D) Protractor 3. Which size of bow compass is used to draw small circles? (A) Less than 2.5" (B) Less than 4" (C) Less than 3.5" (D) Less than 3" 4. How many units’ measurements show in plain scales? (A) Two (B) One (C) Three (D) Four 5. Which drafting instrument is used to draw vertical lines? (A) Set Square (B) Tee Square (C) Scale (D) All of these 6. Size of Drawing board (size-B) according to American Standard: (A) 12” × 9” (B) 36” × 24” (C) 24” × 18” (D) 18” × 12” 7. Size of Drawing Sheet (size-E) according to American Standard: (A) 22” × 17” (B) 44” × 34” (C) 36” × 22” (D) 17” × 11” 8. Size of Drawing board (Quarter size) according to British Standard: (A) 18” × 12” (B) 32” × 23” (C) 32” × 42” (D) 16” × 12” 9. Which instruments are used to measure angles? (A) Compass (B) Divider (C) All of these (D) Protractor 10. While using the lead pencil angle should be: (A) 60°–75° (B) 80°–90° (C) 100°–105° (D) None of these 11. Which type of pencil is very hard? (A) 6H (B) 9H (C) 2H (D) 3H 12. Relation between original measurement and measurement on the drawing sheet: (A) Plain scale (B) Scale (C) Diagonal scale (D) None of these 13. Before using drafting instruments should be: (A) Oily (B) Clean (C) Dirty (D) None of these 14. After using drafting instruments should be: (A) Safely packed (B) Clean & packed (C) Keep open (D) None of these 15. Material used to make the set square: (A) Plastic (B) Celluloid (C) Tin (D) Brass 16. For a plain scale, RF = 1/4 and M.L = 5 decimeters, what is LOS? (A) 12.5 cm (B) 1.25 cm (C) 12.5 m (D) 12.5 dm 17. What is the scale ratio of full-size scales? (A) 1:2 (B) 1:3 (C) 1:10 (D) 1:1 18. A room of 1728 m³ volume is shown as 216 cm³ volume on a drawing sheet. What is the R.F? (A) 1/20 (B) 1/186 (C) 1/250 (D) 1/200 19. If the measurement required is in three units, which scale would you prefer? (A) Plain (B) Comparative (C) Diagonal (D) Vernier 20. Which line is drawn to make the section evident? (A) Long-break line (B) Chain thick (C) Hatching line (D) Border line
