CBSE Class 12 Engineering Graphics Question Paper 2014 - Outside Delhi

CBSE Class 12 Engineering Graphics Question Paper 2014 - Outside Delhi CBSE,CCE and NCERT students can refer to the attached file. All educational material on the website has been prepared by the best teachers having more than 20 years of teaching experience in various schools. The study material available on our website for all CBSE classes and subjects have been prepared by teachers from all over the country. All study material has been carefully designed keeping into mind the latest CBSE examination trends.  

ENGINEERING GRAPHICS

General Instructions :

(i) Attempt all the questions.

(ii) Use both sides of the drawing sheet, if necessary.

(iii) All dimensions are in millimeters.

(iv) Missing and mismatching dimensions, if any, may be suitably assumed.

(v) Follow the SP : 46-2003 revised codes (with First angle method of Projection).

(vi) In no view of question 2 are hidden edges/lines required.

(vii) In question 4, hidden edges/lines are to be shown in views without section.

(viii) Number your answers according to questions.

Answer the following Multiple Choice Questions. Print the correct choice on your drawing sheet.

(i) What will be the shape of a ‘circle’ in Isometric Projection ?

(a) Ellipse

(b) Parabola

(c) Circle

(d) Cycloid

(ii) Why is a Hook Bolt provided with a square neck ?

(a) To prevent the rotation of the bolt while tightening

(b) To make the joint smooth

(c) To provide the bearing surface

(d) None of these

(iii) What is the value of the outer diameter of a plain washer for a bolt of diameter ‘d’ ?

(a) 2d + 6

(b) 2d + 3

(c) 2d

(d) d + 6

(iv) What is the purpose of oil hole in the ‘Bushed Bearing’ ?

(a) To join bush to the base

(b) To provide clearance

(c) To pour oil which reduces the friction between the shaft and bush

(d) All of these

(v) How much taper is provided in the width of a cotter ?

(a) 1 : 3

(b) 1 : 10

(c) 1 : 100

(d) 1 : 30 

(i) Draw to scale 1 : 1 the standard profile of a Metric ScrewThread External, taking enlarged pitch 40 mm. Give standard dimensions.

                                OR

Draw to scale 1 : 1 the front view and top view of a Hexagonal Headed Bolt of size M20. Keep the axis vertical. Give standard dimensions.

(ii) Sketch, freehand the front view and top view of a Plain Stud of size M20. Keep the axis vertical. Give standard dimensions.

                            OR

Sketch, freehand the front view and top view of a Pan Head Rivet of diameter 25 mm. Keep the axis vertical. Give standard dimensions.

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