Spiral spring.—Give a method of making a spiral spring. [I. 329].
Expansion fit.—What is meant by an expansion or a contraction fit, say for an engine crank pin? [I. 366].
Fitting brasses.—Suppose the joint faces of a pair of brasses are not square with the sides of the box or strap in which the brasses fit, what will the effect be when the brasses are locked tight together by the key? [II. 125].
Wear of brasses.—When an engineer is taking up the wear of connecting rod brasses, what must he do to keep the rod of the proper length? [II. 124]-[127].
Case hardening.—Describe the simplest method of case hardening. [II. 128].
Fitting pillar block brasses.—State the proper order of procedure in fitting in a new pair of main bearing or pillar block brasses for an engine. [II. 130].
Driving brasses.—What will be the effect of driving a brass in and out with a hammer and without a block of wood to strike on? [II. 72] and [132].
Originating a true plane.—How is a true plane or flat surface originated? [II. 133].
Cover joint.—What is the best form of joint for an engine cylinder cover? [II. 137].
Grinding a cover.—How must a cylinder cover be moved when grinding it? [II. 137].