A. Feed an increased quantity through the oil pipe to the intercepting valve. Shut the engine off occasionally and cut into simple position. Oil will then go direct from the intercepting valve into the low-pressure steam chest and cylinders. This would avoid going out on steam chest to oil by hand.
9. Q. How much water should be carried in the boiler of a compound locomotive?
A. A very moderate level, never allowing it to get so high that moist steam will pass through the cylinders, because for satisfactory service a compound engine should always have dry steam.
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.
13. Q. What does steam blowing at the three-way cock indicate?