Expansion curve.—If the expansion curve is above the true expansion curve, what defect in the engine does that indicate? If the expansion curve falls too low, what does it indicate? [II. 421].
Valve lead by diagram.—How would insufficient valve lead be shown on a diagram? [II. 421].
Excessive lead.—How is excessive lead shown on a diagram? [II. 421].
Automatic cut-off.—What is an automatic cut-off engine? What are the principal forms of automatic cut-off engines? [II. 423].
Releasing valve governor.—What kinds of governors do engines with releasing valves have? [II. 423].
Corliss engine valves.—How many valves does a Corliss engine have? Explain the action of a Corliss valve gear. [II. 423].
Crab claw.—What duty does the latch-link or crab-claw of a Corliss valve gear perform? [II. 423].
Valve trip.—What means are employed in a Corliss engine to trip the admission valve? [II. 423], [424].
Point of cut-off.—What determines the point of cut-off in a Corliss engine, and how does it do so? [II. 424].
Valve closing.—What closes the valve in a Corliss engine? [II. 424].