Fitting a nut.—Will a nut having a United States standard thread fit a bolt having a common V thread, both threads having the same pitch and diameter, and how could you tell one bolt from the other? [I. 85].
Curing a pounding cam.—Suppose some part of the machinery driven by an engine had a cam motion with a small roller which hammered and pounded on the cam, how would you cure the defect? [I. 83].
Ordering a new spur wheel.—Suppose a spur wheel broke and you wanted to give the diameter for a new one, where would you measure the diameter of the old one? [I. 1].
Comparing screw threads.—What is the difference between the common V thread and the United States standard thread? [I. 85].
Using two set screws.—When two set screws are placed in a hub how should they be located? [I. 127].
Best lathe tool.—What is the most useful turning tool for a hand lathe, such as is sometimes provided for an engineer to make repairs with? [I. 331].
Fitting a crank pin.—How would you proceed to put in by a contraction fit a crank pin, the crank being on the engine? [I. 366].
Increasing strength of teeth.—Suppose you had to order a new pair of wheels to replace a pair whose teeth frequently broke, what alterations in the dimensions of the wheels would you make so as to get stronger teeth in wheels of the same diameter? [I. 65].
Wear of a cam roller.—If an engine had a valve motion worked by a parallel roller in a parallel cam groove, would the roller wear out quick, and why? [I. 84].
Altering the speed of a shaft.—Do a pair of mitre wheels alter the speeds of the shaft they drive or not? [I. 1].