CBSE Class 12 Engineering Graphics Sample Paper 2018 (2)

CBSE Class 12 Engineering Graphics Sample Paper 2018 (2). It’s always recommended to practice as many sample papers as possible before the examinations. Students can download the sample papers and also question papers of previous years to practice and score better marks in examinations. Refer to other links too for more sample papers.

Q.1 Answer the following Multiple Choice Questions. Print the correct choice on your drawing sheet 5 X 1=5

(i) What is the angle in degree between the main scale and isometric scale in the construction of isometric scale?

a) 30°

b) 15°

c) 45°

d) 90°

(ii) Which is the modified form of square thread?

a) V-thread

b) Metric thread

c) Knuckle thread

d) B.S.W thread

(iii) What is the width of the Rectangular Sunk Key, if the diameter of the shaft is D?

a) D/2

b) D/8

c) D/4

d) D/6

(iv) Name the joint used for joining two pipes

a) Flanged pipe joint

b) Bushed bearing

c) Turn buckle

d) Cotter joint

(v)Name the portion between the rim and the hub of a cast iron pulley

a) Shaft

b) Gap

c) Bush

d) Web

Q.2 (i) Construct an isometric scale. 4

(ii) A frustum of a pentagonal pyramid (base side 50mm, top side 30mm and axis 70mm) is kept with its axis perpendicular to H.P. One of its base sides parallel to V.P. and away from it. Draw its isometric projection. Show the axis and indicate the direction of viewing .Give all dimensions.

(iii) A hexagonal pyramid (base edge 30mm, axis 50mm), having two of its hexagonal edges parallel to V.P., is placed centrally on the top square face of a square slab(base side 80mm, height 20mm). The common axis is perpendicular to H.P. Draw the isometric projection of the combination of solids. Show the common axis and indicate the direction of viewing. Give all dimensions. 13

Q.3. (i) Draw to scale 1:1 the front view and top view of a hexagonal nut, with vertical axis (diameter 20mm). Give standard dimensions. 8

OR

Draw to scale 1:1, the front view and side view of a Square headed bolt of diameter 20mm, keeping the axis parallel to V.P and H.P. Give standard dimensions.

(ii) Sketch freehand the front view and top view of a Grub screw of size M25, Keeping the axis vertical. Give standard dimensions. 5

OR

Sketch freehand the front view and side view of a Plain stud, of diameter 20mm, keeping the axis horizontal. Give standard dimensions.

Q.4 Figure 1 shows the details of the parts of a FLANGE PIPE JOINT. Assemble these parts correctly, and then draw the following views using scale 1:1.

(i) Front view, top half in section. 14

(ii) Left side view. 8

Print the title and the scale used. Draw the projection symbol. Give 6 important dimensions.

Please click the link below to download CBSE Class 12 Engineering Graphics Sample Paper 2018 (2).

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