the oil may be lost by keeping it too
warm, and the burner is more difficult to operate and does not work as
well when the oil is kept at too high a temperature. Should the oil be
too warm, it will give off too much gas which would be liable to cause
an explosion in the oil tank.

4. Q. What tools are necessary for firing purposes on an oil burning
locomotive?

A. The tools necessary for firing an oil burning engine include sand
horn, brick hook, and a small iron bar to be used in cleaning carbon
from the mouth of the burner.

5. Q. What is liable to happen if the heater valve is open too much?

A. If the heater valve is opened too much it would be liable to burst
the heater hose as well as to heat the oil to a too high temperature and
place an unnecessary strain on all the heater connections, causing them
to leak.

6. Q. What should be done on approaching stations where additional
supply of fuel oil is to be taken?

A. Shut off the fire, close safety and main oil valves, remove any lamps
that are so close as to be unsafe when manhole cover is open.

7. Q. What care must be exercised in the use of lamps, torches or
lanterns about oil tanks whether hot or cold?

A. Never permit oil lamps or oil torches to be carried within ten feet
of the tank opening. Only incandescent lamps or pocket flash lights
should be used around oil tank manhole when taking oil.

8. Q. How can oil in the tank be measured without taking a light to the
manhole?

A. By inserting a measuring stick into oil in tank and taking stick to
the light for reading.

9. Q. What precautions must be taken before entering tanks that have
been used for oil to clean or make repairs?

A. Oil tanks, before being entered by workmen, should be thoroughly
steamed and cooled before being entered. For safety they should be
steamed from six to eight hours.

10. Q. How should the fire be lighted in an oil burning locomotive?

A. First see that no one is working under the engine, that there is the
proper amount of water in the boiler and that it will flow through the
gauge cocks, that there is no accumulation of oil in the ash-pan or
fire-box or existing leaks throughout. If there is no steam in the
boiler, the steam connections can be made to the three-way cock at the
smoke-arch that will answer for blower and atomizer. If there are twenty
pounds of steam in the boiler, it can be operated with its own blower.
If oil in the tank is too cold to flow into th