he road as required by the rules.

208. Q. When double-heading, which engineman should have full control of
the brakes?

A. The head engineer; the cut-out cock under the brake valve on the
second engine should be closed and the compressor allowed to run.

209. Q. How may the engineman assist the trainman in finding a bursted
hose?

A. After the train has come to a stop, the brake valve should be placed
in running position; by so doing, air will be admitted to the brake pipe
and cause a blow at the point where the hose is burst.

210. Q. If the locomotive brake creeps on with the automatic and
independent brake valves in running position, where would you look for
the trouble?

A. This is caused by the pressure chamber being overcharged or a
non-sensitive feed valve allowing brake pipe pressure to vary, which in
turn causes an automatic application of the brake.

211. Q. How often should the main reservoir be drained?

A. The main reservoir should be drained at the beginning of each trip.

* * * * *

=INDEX=
Page

Air Brake Questions, First Series 22
Air Brake Questions, Second Series 44
Air Brake Questions, Third Series 164
Compound Locomotives 98
Examination Questions, First Series 7
Examination Questions, Second Series 25
Examination Questions, Third Series, Mechanical 62
Federal Regulations 126
Headlight, Pyle National 127
Headlight, Schroeder 141
Headlight, "Buda-Ross" Electric 143
Lubrication 120
Oil Burning Locomotives 47
Preface 3
Southern Valve Gear 119
Stoker, Duplex 154
Walschaert and Baker-Pilliod Valve Gears 113

* * * * *

Transcribers Notes:

Punctuation and heading format normal.

Page 7, "feul" changed to "fuel" (use of fuel).
Page 16, "therby" changed to "thereby" (thereby causing)
Page 31, "criculation" changed to "circul