CBSE Class 12 Sample Paper 2026 Solution for Engineering Graphics

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2026
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ENGINEERING GRAPHICS – Code No. 046
MARKING SCHEME
CLASS - XII – (2025-26)

Time Allowed: 3 hours Maximum Marks: 70

SECTION – A

Value Points

1. (b) or Below Elevation 1
2. (d) or 1:1 1
3. (c) or OA & OB 1
4. (d) or Knuckle 1
5. (b) or (ii) & (iii) 1
6. (b) or A-(iv) B-(i) C-(iii) D-(ii) 1
7. (c) or (i) & (iii) 1
8. (c) or 15 mm 1
9. (d) or A-(iii) B-(ii) C-(iv) D-(i) 1
10. (b) or (iii) & (iv) 1
11. (a) or Flange Pipe Joint 1
12. (a) 1
13. (c) or (i) & (iv) 1
14. (b) or A-(iii) B-(iv) C-(i) D-(ii) 1

SECTION – B

15. (b) or Equally inclined axes 1
16. (a) or Dimetric, Trimetric 1
17. (a) or A circle of true dimensions 1
18. (d) or Triangle on a rectangle 1

19. (a) or Hexagonal bolt, hexagonal nut 1
20. (c) or Collar Stud 1
21. (a) or Snap head rivet 1
22. (b) or 10:8 1

23. (A) ASSEMBLY OF TURN BUCKLE

(I) FRONT VIEW LOWER HALF IN SECTION 13

(i) Drawing the entire outline of upper body correctly 4
(ii) Drawing the entire outline of lower body correctly with
section lines 5
(iii) Drawing two threaded rods 4

(II) TOP VIEW 8

(i) Drawing body with helping view 5
(ii) Drawing two threaded rods 3

(III) OTHERS 6

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

OR
23. (B) DIS-ASSEMBLY OF SLEEVE AND COTTER JOINT

(I) SLEEVE

(i) Full sectional front View 8
a. Drawing the entire outline of the sleeve 4
b. Cotter slots 2
c. Hatching lines 2

(ii) Top View. 6
a. Drawing the entire outline of the sleeve 2
b. Hidden edges 2
c. Cotter slot 1½
d. Cutting plane ½

(II) ROD A

(i) Front view upper half in section 4
a. Rod with conventional end 2
b. Slot with hatching 2

(ii) Left Side View 3
a. Both circles with hatching of conventional end 1½
b. Hidden lines 1
c. Cutting plane ½

(III) OTHERS 6

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

SECTION – C

24. (I) ISOMETRIC SCALE 4

(i) Drawing 45o inclined line showing true lengths 1
o
(ii) Projections on 30 inclined line showing isometric length with 1mm
subdivisions in one part 2
(iii) Writing title, sub titles and angles 1

24. (II) ISOMETRIC PROJECTION OF PENTAGONAL PRISM 9

(i) Helping figure 1
(ii) Drawing isometric pentagons 4
(iii) Drawing face edges 2
(iv) Dimensions 1
(v) Indicating the axis and direction of viewing 1

25. (A) B.S.W. THREAD PROFILE 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) SQUARE BOLT 8

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

Study Materials
Notes

Model Papers Class 6 Notes

Sample Papers Class 7 Notes
Half Yearly Sample Papers Class 8 Notes

Class 9 Notes
Important Resources
Class 10 Notes
Periodic Table
Class 11 Notes
Writing Skills / Formats

Maps of India / World Class 12 Notes

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