10. Q. How should a compound locomotive be started with a long train?

A. In simple position with cylinder cocks open.

11. Q. When drifting what should be the position of the separate exhaust

valve, the cylinder and port cocks?

A. Open position.

12. Q. What will cause two exhausts of air to blow from the three-way

cock or simpling valve in the cab when the engine is being changed to

compound?

A. A sticky exhaust valve. It does not move when air is first

discharged. The second exhaust comes when it does move.