CBSE Class 12 Sample Paper 2025 Solution for Engineering Graphics

Central Board of Secondary Education

SAMPLE PAPER
Class 12
2025

Solutions

SAMPLE QUESTION PAPER
MARKING SCHEME
XII – (2024-25)
ENGINEERING GRAPHICS (046)

Time Allowed: 3 hours Maximum Marks: 70

SECTION – A

Value Points

1. (D) or a rhombus of foreshortened length 1
2. (C) or (i) & (iii) 1
3. (C) or in front of, above 1
4. (C) or They are located by determining its endpoints 1
5. (C) or Square 1
6. (A) or the major diameter is 20mm and pitch is 2mm 1
7. (B) or a-(ii) b-(i) c-(iv) d-(iii) 1
8. (D) or (a)-(i) (b)-(iv) (c)-(ii) (d)-(iii) 1
9. (A) or 26 mm 1
10. (D) or (ii) & (iii) 1
11. (D) 1
12. (B) or Gib and Cotter Joint 1
13. (B) or (iii) & (iv) 1
14. (B) or a-(iii) b-(iv) c-(ii) d-(i) 1

SECTION – B

15. (B) or Representing three-dimensional objects 1
16. (C) or Engineering and design 1
17. (A) or It simplifies and helps in better visualization of complex parts of the
project 1
18. (D) or Equally foreshortened the true dimensions 1

19. (B) or Even distribution of load 1
20. (B) or To join steel structures of bridges 1
21. (A) or Sectioning 1
22. (B) or 2d 1

23. (A) ASSEMBLY OF FLANGE PIPE JOINT

(a) FRONT VIEW UPPER HALF IN SECTION 13

(i) Drawing the upper half correctly 8
(ii) Drawing the lower half correctly 5

(b) RIGHT SIDE VIEW 8

(i) Drawing circles 5
(ii) Drawing bolt-nut, hatching and cutting plane 3

(c) OTHERS 6

(i) Six Important Dimensions 3
(ii) Printing title, Projection symbol and Scale used 3

OR

23. (B) DIS-ASSEMBLY OF OPEN BEARING

(a) BODY

(i) Full sectional front View 8
a. Drawing the outline of the body, drawing two bolt
holes indicating CRS, recess 7
b. Hatching lines 1

(ii) Top View. 6
a. Drawing the outline of the body 3
b. Holes and recess 2½
c. Cutting plane ½

(b) BUSH

(i) Front view left half in section 4

(ii) Top View 3

(c) OTHERS 6

(i) 6 Important Dimensions. 3
(ii) Printing titles, Symbol of Projection and Scale used. 3

SECTION – C

24. I.) ISOMETRIC SCALE 4

a. Drawing 45o inclined line showing true lengths 1
b. Projections on 30o inclined line showing isometric length with 1mm
subdivisions in one part 2
c. Writing title, sub titles and angles 1

24. II.) ISOMETRIC PROJECTION OF INVERTED HEXAGONAL PYRAMID
9

a. Helping figure 1
b. Drawing upper isometric hexagon 3
c. Drawing slant edges 3
d. Dimensions 1
e. Indicating the axis and direction of viewing 1

25. (A) METRIC THREAD INTERNAL 8

(i) Distance equal to pitch and other ratios 2
(ii) Crest, roots and slant edges 3
(iii) Hatching lines with conventional break 1
(iv) Standard dimensions 2

OR

25. (B) HEXAGONAL NUT 8

(i) Front view 3
(ii) Top view 3
(iii) Standard dimensions 2

CBSE STUDY MATERIAL

CBSE Board

INFORMATION CLASS STUDY MATERIAL

1 Time Table 09 Sample Paper
10 Sample Paper
2 Result
11 Sample Paper
3 Syllabus 12 Sample Paper

OTHER RESOURCES
09 Question Paper
Maps of India, Maps of World
Writing Skill Formats 10 Question Paper
Periodic Table 11 Question Paper
12 Question Paper
Class 9 Notes
Class 10 Notes
NCERT Book
Class 11 Notes
Class 12 Notes NCERT Solutions

ENTRANCE EXAMS

JEE Main CLAT CUET UG
JEE Advanced NEET UG Fashion & Design