QUESTION $1$:

$[30$ marks$]$ Appendix A shows two views of a machine casting. Draw, using any scale and in third$-$

angle orthographic projection, the following views of the component:

$1\mathrm{.}1.$ A sectional front view on cutting plane D$-$D

$1\mathrm{.}2.$ A sectional top view on cutting plane C$-$C

$(9)$

$1\mathrm{.}3.$ At A a surface texture with a roughness of $2\mathrm{.}5$ micrometers must be produced without machining.

$1\mathrm{.}4.$ Show that surface $B$ should be machined.

$1\mathrm{.}5.$ Add five dimensions, Scale, projection symbol, and title.

$(2)$

$(2)$

$(9)$

QUESTION $2$: $[35$ marks$]$

Refer to Appendix B$,$ components of a connecting rod end are shown. The complete

$\backslash$table$[[$ITEM$,$PART,QUANTITY,MATERIAL$],[$Item $1,$Strap,$1$ of$,$cast steel$],[$Item $2,$Rod end,$1$ of$,$cast steel$],[$Item $3,$Bearing half,$1$ of$,$brass$],[$Item $4,$Bearing half,$1$ of$,$brass$],[$Item $5,$Slide piece,$1$ of$,$mild steel$],[$Item $6,$M$22$ hexagon boit,$1$ of$,$mild steel$],[$Item $7,$M$20$ hexagon bolt,$1$ of$,$mild steel$],[$ltem $8,$M$20$ hexagon bolt,$1$ of$,$mild steel$],[$ltem $9,$M$22$ hexagon bolt,,mild steel$]]$

Using the appropriate scale draw the full sectional front view of the connecting rod Add the list of parts, scale, titie, projection symbol, and item numbers. Make sure your layout is neat and clear.

$(30)$

$(5)$

TOTAL: $65$ MARKS

ndix A

pendix B