CBSE Class 12 Engineering Graphics Sample Paper 2018 (1)

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CBSE Class 12 Engineering Graphics Sample Paper 2018 (1). 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.

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

(i) Which machine part is called as “HEADLESS BOLT”?

(a) Nut

(b) Screw

(c) Stud

(d) Rivet

(ii) A Square drawn in isometric projection appears as?

(a) Square

(b) Rhombus

(c) Rectangle

(d) Trapezium

(iii) In first angle projection the order of object, plane and observer, as viewed from the front is?

(a) Object, Plane and Observer

(b) Object, Observer and Plane

(c) Plane, Observer and Object

(d) Observer, Object and Plane

(iv) What is the thread angle in degree of a Metric thread?

(a) 60° 

(b) 45°

(c) 75°

(d) 90°

(v) In which type of bearing the Bush is split into two halves?

(a) Footstep Bearing

(b) Bushed Bearing

(c) Simple Plummer Block

(d) Open Bearing

2. (i) Construct an isometric scale of length 70 mm. (4)

(ii) Draw the isometric projection of the frustum of triangular pyramid having top base edge 30 mm and bottom base edge 50 mm with a height of 70 mm resting on its longer base keeping one of its base edges parallel to the V.P. and nearer to the observer. Give the direction of viewing, axis and dimensions. (7)

(iii) Draw an Isometric Projection of a square pyramid resting vertically and centrally on the top pentagon face of a pentagonal prism, having one rectangular face parallel to V.P. while nearer to the observer. Side of the square base = 30 mm, height of pyramid = 50 mm, side of the pentagon = 35 mm and height of the prism = 50 mm. Give the direction of viewing, axis and dimensions. (13)

3. (i) Draw to scale 1:1 the standard profile of a Metric Screw Thread(external), taking enlarged pitch 45 mm. Give standard dimensions. 8)

OR

Draw to scale 1:1 the Front view and Plan of a Square Headed Bolt when its axis is perpendicular to H.P. Take the diameter of the bolt as 24mm, and length as 110 mm. Give standard dimensions.

(ii) Sketch freehand the front view and top view of a 60° Counter Sunk Head Rivet of diameter 20 mm. Keep the axis vertical. Give standard dimensions. (5)

OR

Sketch freehand the Front view and Top view of a Plain Stud of diameter = 20mm, keeping its axis vertical. Give standard dimensions.

4. The figure given below, shows the details of the parts of a Flanged Pipe joint. Assemble these parts correctly and then draw, to scale 1:1, its following views: 

Please click the link below to download CBSE Class 12 Engineering Graphics Sample Paper 2018 (1).

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Click on the text For more study material for Engineering Drawing please click here - Engineering Drawing

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