CBSE Class 12 Marking Scheme 2022 for Engineering Graphics Term 2

SAMPLE QUESTION PAPER

TERM 2 (2021-22)

XII

ENGINEERING GRAPHICS (046)
MARKING SCHEME

Maximum Marks: 35

Distribution
of Marks
1. COLLAR STUD 7

(i) Front view with horizontal axis. 3
(ii) Side view. 2
(iii) Standard dimensions. 2

2. SLEEVE AND COTTER JOINT (Assembly)

(i) FRONT VIEW UPPER HALF IN SECTION: 15
(a) Drawing the upper half of sleeve with clearance and with 5
hatching lines and drawing the lower half of sleeve.
(b) Drawing both the cotters in upper half and in lower half. 4
(c) Drawing both the rods with clearance and conventional ends 6
with hatching lines.

(ii) SIDE VIEW LOOKING FROM THE LEFT END: 7
(a) Drawing three circles and conventional hatching at the end of 4
rod.
(b) Drawing cotter. 21/2
1
(c) Drawing cutting plane. /2

DETAILS : 6
(a) Printing title. 1
(b) Scale used. 1
(c) Projection symbol. 1
(d) Six important dimensions. 3

[OR]
FLANGE AND PIPE JOINT (Disassembly)

(i) FLANGE B
(a) FRONT VIEW UPPER HALF IN SECTION: 8
(i) Drawing the upper half of flange with hole of dia 12mm. 4
(ii) Drawing the lower half of flange. 2
(iii) Hatching lines 2

(b) RIGHT HAND SIDE VIEW : 8
1
(i) Drawing four circles and one p.c.d. circle. 4 /2
(ii) Drawing four circles of dia 12 mm. 2
(iii) Hatching lines at the conventional end of pipe. 1
1
(iv) Cutting plane. /2

(ii) GASKET
(a) FRONT VIEW: 3
(i) Rectangle with two horizontal lines of internal dia of 44mm. 2
(ii) Shaded portion showing rubber material of gasket. 1

(b) LEFT SIDE VIEW : 3
1
(i) Drawing both circles. 2 /2
1
(ii) Cutting plane. /2

DETAILS : 6
(a) Printing titles. 1
(b) Scale used. 1
(c) Projection symbol. 1
(d) Six important dimensions. 3

1.

2.

OR