A Text Book on Engineering Graphics - Central Board of Secondary ...

More documents

Recommendations

Info

1.3.3 FRUSTUM OF PYRAMID Example 16 : Solution : Example 17 : Solution: ISOMETRIC PROJECTION We are well aware about the frustum of pyramids that they are the truncated lower portion of the pyramid. So frustum of pyramid is having one shorter base edge end and another longer base edge end. To draw the isometric projection of the frustum of pyramid, we have to draw the helping views for both the ends. Let us draw some examples. Draw the isometric projection of a frustum of square pyramid of shorter base edge 30 mm and longer base edge 50 mm with the axial height of 60 mm, kept on H.P. on its longer end and two of its base edges are parallel to V.P. Refer Fig 1.17 Steps (i) Draw the helping figures of both the base ends with iso 30 mm and iso 50 mm. (ii) Complete the helping figures by enclosing rectangle and centre lines. (iii) Draw the isometric box with OA length on the side of direction of viewing, OB length on the another horizontal line and OC equal to iso 60 mm, height of frustum of pyramid on vertical line. (iv) Draw the center lines on the upper end of the isometric box and mark centre as M. (v) Copy the lengths of helping figures of shorter end 'oa' and 'ob' by placing 'm' on 'M'. (vi) Mark all the points of shorter end helping figure on the upper end of isometric box and all the points of longer end helping figure on the lower end of isometric box. (vii) Join the visible edges by thick lines and axis by center line. (viii) Complete the isometric projection of frustum of square pyramid with dimensioning and direction of viewing. Draw the isometric projection of a frustum of square pyramid of shorter base edge 30 mm and longer base edge 50 mm with the axial height of 60 mm, kept on H.P. on its shorter end and two of its base edges are parallel to V.P. Refer Fig 1.17 Steps (i) to (iii) will be same as above. (iv) Draw the center lines of the lower end of the isometric box as the shorter end of the given frustum of pyramid is at lower end and mark center as M. (v) to (viii) will be same as above. 16 ENGINEERING GRAPHICS
ISOMETRIC PROJECTION b o B 30 m a HELPING FIGURE B (i) b b 30º 30º o B O o O (iv) C m (M) 30º 50 M HELPING FIGURE (ii) C 30º m (M) a a HORIZONTAL LINE O (vi) (vii) Fig 1.17 ENGINEERING GRAPHICS A A F F A 30º 50 30 50 30 30º 30º VERTICAL LINE (iii) ISOMETRIC PROJECTION (v) HORIZONTAL LINE ISOMETRIC PROJECTION 30º 30º 30º 60 60 F F 17
Page 1 and 2: A Text Boo
Page 3 and 4: Foreword Design is an integral aspe
Page 5: PREAMBLE THE CONSTITUTION OF INDIA
Page 9 and 10: CHAPTER 1 1.1 INTRODUCTION The obje
Page 11 and 12: ISOMETRIC PROJECTION 1.2.2 POSITION
Page 13 and 14: ISOMETRIC PROJECTION B C 30 (i) 5 b
Page 15 and 16: ISOMETRIC PROJECTION Example 4 : So
Page 17 and 18: ISOMETRIC PROJECTION Steps (i) Draw
Page 19 and 20: ISOMETRIC PROJECTION Steps (i) Draw
Page 21 and 22: ISOMETRIC PROJECTION Solution : Exa
Page 23: ISOMETRIC PROJECTION Example 14: So
Page 27 and 28: ISOMETRIC PROJECTION Example 20 : S
Page 29 and 30: ISOMETRIC PROJECTION Example 23 : S
Page 31 and 32: ISOMETRIC PROJECTION 1.3.5 SPHERES
Page 33 and 34: ISOMETRIC PROJECTION 5. Draw an iso
Page 35 and 36: ISOMETRIC PROJECTION Steps: 1. Draw
Page 39 and 40: ISOMETRIC PROJECTION Steps: Exmple
Page 45 and 46: ISOMETRIC PROJECTION 7. BELOW: CIRC
Page 47 and 48: ISOMETRIC PROJECTION 30 66 30 15. B
Page 49 and 50: MACHINE DRAWING Fig 2.1 b : Screw t
Page 51 and 52: MACHINE DRAWING (v) RIGHT HAND AND
Page 53 and 54: MACHINE DRAWING 2.4 STANDARD PROFIL
Page 55 and 56: MACHINE DRAWING 2.4.2 METRIC THREAD
Page 57 and 58: MACHINE DRAWING Steps involved are
Page 59 and 60: MACHINE DRAWING 2.5 BOLTS In day to
Page 61 and 62: MACHINE DRAWING (vii) The end of th
Page 63 and 64: MACHINE DRAWING 2.5.3 T-BOLT Exampl
Page 65 and 66: MACHINE DRAWING Steps Involved Exer
Page 67 and 68: MACHINE DRAWING Example 10 : Soluti
Page 69 and 70: MACHINE DRAWING 2.6.2 SQUARE NUTS E
Page 71 and 72: MACHINE DRAWING Solution : Steps In
Page 73 and 74: MACHINE DRAWING Steps Involved Exam
Page 75 and 76:
MACHINE DRAWING Example 15: Solutio
Page 79 and 80:
MACHINE DRAWING 2.10 INTRODUCTION F
Page 81 and 82:
MACHINE DRAWING 2.11.3CONVENTIONAL
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
MACHINE DRAWING Exercises NOTE: Ass
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
MACHINE DRAWING 2.15.1.3 DOUBLE HEA
Page 95 and 96:
3 CHAPTER All of you have seen a bi
Page 97 and 98:
BEARINGS 3. Plummer Block or Pedest
Page 99 and 100:
BEARINGS Answer of Fig. 3.3 10 20 2
Page 101 and 102:
BEARINGS Question: The figure given
Page 103 and 104:
BEARINGS R5 R6 2 HOLES FOR BOLTS 24
Page 105 and 106:
A BEARINGS Answer of fig 3.12 20 40
Page 107 and 108:
BEARINGS NOTE : As per our syllabus
Page 109 and 110:
BEARINGS Question: The figure given
Page 111 and 112:
BEARINGS EXPLODED VIEW OF A FOOT ST
Page 113 and 114:
BEARINGS 5 15 15 40 15 15 ENGINEERI
Page 115 and 116:
BEARINGS FOOT STEP BEARING Ø 120
Page 117 and 118:
ROD JOINTS DIMENSIONS OF A COTTER:
Page 119 and 120:
ROD JOINTS SLEEVE AND COTTER JOINT:
Page 121 and 122:
ROD JOINTS Solution of fig : 4.5 Qu
Page 123 and 124:
ROD JOINTS Answer of fig. 4.9 50 50
Page 125 and 126:
ROD JOINTS Question: The details of
Page 127 and 128:
ROD JOINTS Exercise: The three view
Page 129 and 130:
ROD JOINTS KNUCKLE JOINT OR PIN JOI
Page 131 and 132:
ROD JOINTS Question: fig 4.19(a) sh
Page 133 and 134:
ROD JOINTS Question: The figure 4.2
Page 135 and 136:
ROD JOINTS Exercises: The three vie
Page 137 and 138:
ROD JOINTS Dimensions of a Gib and
Page 139 and 140:
ROD JOINTS 96 66 12 GIB 26 COTTER T
Page 141 and 142:
ROD JOINTS Exercise: The two views
Page 143 and 144:
5 CHAPTER Machines use various part
Page 145 and 146:
TIE-ROD AND PIPE JOINTS (We have di
Page 147 and 148:
TIE-ROD AND PIPE JOINTS Example 2:
Page 149 and 150:
TIE-ROD AND PIPE JOINTS RH SIDE VIE
Page 151 and 152:
TIE-ROD AND PIPE JOINTS 5.2.1.1 FEA
Page 153 and 154:
TIE-ROD AND PIPE JOINTS (1) FLANGE
Page 155 and 156:
TIE-ROD AND PIPE JOINTS Let us cons
Page 157 and 158:
TIE-ROD AND PIPE JOINTS WHAT HAVE W
Page 159 and 160:
SHAFT COUPLINGS 6.1 FLANGE COUPLING
Page 161 and 162:
SHAFT COUPLINGS It can also be noti
Page 163 and 164:
SHAFT COUPLINGS Ø100 Ø75 Ø50 Ø2
Page 165 and 166:
SHAFT COUPLINGS Exercise 6.1 Fig 6.
Page 167 and 168:
SHAFT COUPLINGS ASSEMBLED PICTORIAL
Page 169 and 170:
SHAFT COUPLINGS Let us take another
Page 171 and 172:
SHAFT COUPLINGS Exercise 6.2 1. FIG
Page 173 and 174:
CHAPTER 7 7.1 INTRODUCTION PULLEYS
Page 175 and 176:
PULLEYS So pulley is a simple machi
Page 177 and 178:
PULLEYS Solution : Ø144 Ø126 Ø11
Page 179 and 180:
PULLEYS Example 3 : Draw the Front
show all

A Text Book on Engineering Graphics - Central Board of Secondary ...

Create successful ePaper yourself

Delete template?

Save as template?