First Stage or Elementary Examination. 1885.
Instructions.
Read the General Instructions above.
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.) Show two methods by which a cotter may be prevented from slacking back. (6.)
(b.) Sketch the brasses for a bearing, and show how they are prevented from turning in the pedestal. (6.)
(c.) Explain the object of the construction of the connecting rod end shown in fig. 78. Describe how the adjustment must be made and how it is locked. (10.)
(d.) Show the form of the Whitworth screw thread by drawing to scale a part section of two or three threads taking a pitch of 1½ inches. Figure the dimensions on the sketch. How many threads to the inch are used on an inch bolt? (10.)