Fitting axle-box wedges.—In what position should the engine be placed when the axle-box wedges are to be adjusted for fit to the pedestals? [II. 404].
Changing clearance.—What is it that, as the engine wears, tends to alter the amount of clearance? [II. 404].
Crank-pin centres.—How would you get the distance from centre to centre of the crank-pins when adjusting the axle-boxes and the side rods, parallel rods, or coupling rods, as they are promiscuously termed? [II. 404].
Adjusting Shoes.—In what position would you place the crank when adjusting the shoes or wedges of the axle-boxes? Why is this adjustment important? [II. 404].
Force, pressure, and power.—What is the difference between force or pressure and power? [II. 405].
Increase of power.—Can we increase a given amount of power by means of mechanical appliances? [II. 405], [406].
Speed vs. power.—Is a gain in speed a loss in power? [II. 405].
Lever.—Explain the principle of the lever. [II. 405].
Elements of power.—What are the three elements composing power? [II. 407].
Horse-power.—What is a horse-power as applied to steam-engine calculations? How would you calculate the horse-power of a steam engine? [II. 407].—Give a method of testing the effective horse-power of an engine. [II. 408].