Q. What is an injector, and what is the principle of its operation?
Q. Where are the blow-off cocks located? How should they be used?
Q. In what cases should spark arrester be used?
Q. Who invented the steam engine, and when?
Q. What are the essential parts of a steam engine?
Q. What is the cylinder, and how is it used?
Q. What is the piston, and how does it work? The piston-rings?
Q. What is the piston rod and how must it be fastened?
Q. What is the crosshead, and how does it move? What are guides or ways? Shoes?
Q. What is the connecting rod? Wrist pin? Crank pin?