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ENGINEERING DRAWING: DISCUSSION OF ENGINEERS'LANGUAGE ..[ for Private Circulation only !]
NOTE:
- ALL DIMENSIONS ARE IN mm. NEATNESS & GOOD DRAFTSMANSHIP WILL BE CONSIDERED.
- USE FULL / I. S. RECOMMENDED SCALE, if not specified.
- ATTEMPT ALL QUESTIONS
- USE SEPARATE ANSWER SHEETS FOR TWO DIFFERENT SECTIONS
- USE FIRST ANGLE PROJECTION METHOD
- ASSUME ANY MISSING DATA SUITABLY
SECTION -1
Q:1](a) DRAW A SEMI-CIRCLE OF 150 mm DIAMETER, WITH THE DIAMETER LINE , POQ ., "O" , BEING THE CENTER OF THE SEMI-CIRCLE. INSCRIBE IN IT THE LARGEST POSSIBLE EQUILATERAL TRIANGLE, ABO . THE SEMI-CIRCLE REPRESENTS THE LATERAL SURFACE DEVELOPMENT OF A CONE AND A TRIANGLE AS A LINE ON ITS SURFACE. THE VERTEX "O" OF THE TRIANGLE & THE CENTRE OF THE SEMI-CIRCLE COINCIDE. THE SIDE OPPOSITE TO THIS VERTEX "O" IS PARALLEL TO THE DIAMETER LINE AB & TOUCHING THE CURVED PERIMETER OF THE SEMI-CIRCLE. DRAW THE PROJECTIONS OF THE CONE RESTING ON ITS BASE ON THE GROUND., SHOWING THE LINE A O B , IN THREE VIEWS ....[17 MARKS]
Q:1](b) A CONE WITH BASE CIRCLE DIAMETER50 mm AND SLANT HEIGHT 50 mm IS RESTING ON ITS BASE,OIN THE HP.,WITH ITS DIAMETER PQ PARALLEL TO THE V.P. A POINT S, STARTING FROM THE POINT P , MOVES ALONG THE CURVED SURFACE OF THE CONE AND COMES TO THE POINT Q AND THEN COMES BACK TO P MOVING AROUND THE AXIS AND TRAVELLING THE SHORTEST DISTANCE . SHOW THE PATH OF THE POINT IN THE ELEVATION AND PLAN OF THE CONE. ...........[17 MARKS]
Q:2] A SQUARE PYRAMID , SIDE OF BASE 75 mm AND AXIS 100mm LOG IS RESTING ON THE GROUND ON ITS BASE WITH ITS TWO SIDES OF THE BASE INCLINED AT 30Deg. TO THE V.P. AN AXIAL SQUARE HOLE OF SIDES 50, IS CUT THROUGH THE PYRAMID, SO THAT THE VERTICAL FACES OF THE HOLE ARE EQUALLY INCLINED TO THE V.P. DRAW THE PROJECTIONS( FRONT VIEW AND TOP VIEW) OF THE SOLIDS, SHOWING THE LINES OF INTERSECTION , AND SHOW THE DEVELPMENT OF THE LATERAL SURFACE OF THE SOLID.
Q:3](a) A RIGHT CIRCULAR CYLINDER WITH BASE DIAMETER 80mm AND HEIGHT 100 mm IS RESTING ON ITS CIRCULAR BASE. A TRIANGULAR PRISM WITH SIDE 80 mm IS PENETRATING THROUGH THE CYLINDER , SUCH THAT THE AXIS OF THE PRISM IS PARALLEL TO THE H.P. AND PERPENDICULAR TO THE V.P. AND IT BISECTS THE AXIS OF THE CYLINDER. DRAW THE PROJECTIONS SHOWING THE CURVES OF INTERSECTIONS.
Q:3](b) TWO EQUAL PRISMS WHOSE ENDS ARE EQUILATERAL TRIANGLES OF 40 mm SIDES AND AXIS 100 mm LONG, INTERSECT AT RIGHT ANGLES. ONE FACE OF EACH PRISM IS ON THE GROUND. THE AXIS OF ONE OF THE PRISMS MAKES 30Deg. WITH THE V.P.. DRAW THREE VIEWS OF THE SOLIDS.
Q:4](a) SKETCH FREE HAND 2 VIEWS OF A DOUBLE RIVETED,DOUBLE STRAP (COVER PLATE),ZIG-ZAG TYPE, BUTT JOINT FOR JOINING TWO PATES OF 10 mm THICKNESS. USE 20 mm DIAMETER RIVETS. INSERT ALL IMPORTANT DIMENSIONS.
Q:4](b) DRAW NEAT DIMENSIONED FREE HAND SKETCHES OF ANY TWO OF THE FOLLOWING : DRAW 2 VIEWS EACH.
i) ANY ONE TYPE OF LOCKING ARRANGEMENTS USED FOR THE PREVENTION OF SELF ROTATION OF NUTS. (ii) A SQUARE HEADED BOLT WITH SQUARE NECK. (iii) ANY TWO TYPES OF STUDS.
SECTION II
Q:5] FIGURES SHOWN BELOW SHOW 2 VIEWS OF AN OBJECT{iso2.gif}, USING NATURAL OR TRUE SCALE DRAW AN ISOMETRIC VIEW OF IT. ...............................[10MARKS]
Q:6] FIGURES SHOWN BELOW SHOW 2 VIEWS OF AN OBJECT{obl2.jpg}. DRAW AN OBLIQUE VIEW OF IT. ...............................[10MARKS]
Q:7](a) A TWO VIEW DRAWING OF A Machine part{miss2.jpg} IS SHOWN BELOW. DRAW THE FOLLOWING VIEW TO THE SCALE FULL SIZE: [ SHOW DIMENSIONS EVEN IN MISSING VIEW ] .........[20 MARKS]
(a)TOP VIEW.
(b) Off-Set Sectional FRONT VIEW [ section plane passing through the centres of the vertical Cylinder & tapped Holes
(c) Right SIDE VIEW .
Q:8] DRAW THE FOLLOWING VIEWS FOR THE MACHINE PART{aux2.jpg} SHOWN BELOW:.. ....[10 MARKS]
F.V.
S.V.
AUXILIARY SECTIONAL TOP VIEW , LOOKING ALONG THE DIRECTION "A"
--AHFS--
