Natural supply of water.—What precaution would you take when feed water is drawn from a stream, or other natural source of supply? [II. 387].
Pumps.—Into what classes may pumps be divided? What is a force pump? What is a piston pump? What is a single-acting pump? What is a double-acting pump? [II. 387].
“Suction.”—What causes the flow of water up the suction pipe of a pump? How high can a pump lift water, or cause it to lift or rise? [II. 388].
Regulating a pump.—How can the quantity of water a pump will deliver be regulated? [II. 388].
Pump valves.—What is the check valve of a pump? What is the foot valve of a pump? [II. 388].
Speed of pumping.—What is the highest speed at which a pump should run? What is the consequence if a pump runs too fast? [II. 388].
Locating the air chamber.—When should the air chamber be placed on a pump, and what is its use? [II. 388].
Belt pump.—What is the advantage possessed by a belt pump? [II. 388].
Starting bar.—What is a starting bar, and what is it used for? [II. 389].
Link sketch.—Make a rough sketch of a locomotive link motion. [II. 392].