Read the General Instructions (page 102).
Answer briefly any three, but not more than three, of the following
questions, and draw two, but not more than two, of the examples.
_Questions._
(_a._) Give sketches showing how the cutting tool of a lathe or
other machine is secured in place. (6.)
(_b._) Make a sketch of a stud, describe how it is screwed into
place, and state some circumstances under which it is used in
preference to a bolt. (6.)
(_c._) Give sketches showing one method of attaching the valve rod
to an ordinary slide valve. (6.)
(_d._) Sketch a connecting rod end, with strap, gib, and cotter.
Explain the use of the gib. (10.)
(_e._) Explain the use of the quadrant for change wheels for a
screw-cutting lathe shown in Example 1, fig. 80, by making a
sketch showing it in place on a lathe with wheels in gear. (10.)
(_f._) Sketch one form of hanger suitable for supporting mill-shafting.
(10.)
_Examples to be drawn._
1. Quadrant for change wheels for screw-cutting lathe. Draw the two
views shown (fig. 80). Scale half-size. (35.)
2. Crank-shaft. Draw the two views as shown, partly in section (fig
81). Scale 1/8 full size. (35.)
3. Ball bearing for tricycle. Draw the two views as shown, partly
in section (fig. 82). Draw full size. (35.)
[Illustration: FIGS. 80 AND 81.]
[Illustration: FIG. 82.]
* * * * *
First Stage or Elementary Examination. 1887.