rly; if not, replace the cab wire and remove the positive or
left-hand wire and see if the cab lights burned properly. If such was
the case, let it run, using the small incandescent light in the case for
a headlight and report it at the roundhouse.

8. Q. What is a volt?

A. The unit of pressure of electricity.

9. Q. What is an ampere?

A. The unit of quantity of electricity.

10. Q. What is the proper voltage of a Schroeder headlight?

A. About 28 volts.

11. Q. Can a person be injured by that voltage?

A. No.

12. Q. What is the proper amperage of a Schroeder headlight?

A. About 30.

13. Q. How often should the ball bearings be oiled?

A. About three times a week.

14. Q. How often should the governor be oiled?

A. Before leaving every trip.

15. Q. What kind of oil should be used?

A. Valve oil.

16. Q. Is it necessary to clean the electrode every trip?

A. No.

17. Q. Why?

A. The dynamo is provided with shunt fields which build up the current
regardless of the arc light.

18. Q. What are the two causes of lamp burning green?

A. Speed too high, or wires to the lamp being reversed.

19. Q. If the carbons burned away too fast, but otherwise the lamp
appeared to be burning properly, where would you look for the trouble?

A. It would indicate that tripping spring No. 209 was too tight.

20. Q. If tripping spring No. 209 was being annealed from heat and
sparks were noticed at the clutch, where would you look for the trouble?

A. Flexible wire No. 251 would be broken.

="BUDA-ROSS" ELECTRIC HEADLIGHT=

1. Q. What are the three essential elements in the "Buda-Ross" electric
headlight equipment?

A. Steam turbine engine, dynamo directly connected on the same shaft,
and self-focusing arc lamp.

2. Q. At what speed should the turbine run?

A. 2,800 revolutions per minute.

3. Q. How is the speed controlled?

A. By a centrifugal governing device.

4. Q. How does the steam enter the turbine?

A. Through a main valve which is perfectly balanced in all steam
pressures directly and impinged on the buckets directly from a nozzle.

5. Q. About how much opening should this valve have?

A. About one-fourth of an inch.

6. Q. Can the lift of this valve be changed?

A. Yes.

7. Q. How?

A. By adjusting the inner sleeve of the valve with a common monkey
wrench after removing cap nut on top of turbine.

8. Q. Can this be done while the light is burning?

A. Yes.

9. Q