A. Different roads have different assigned duties for the firemen to
perform. They should leave the cab, boiler head, oil cans and deck in a
clean condition, boiler full of water, enough fire and steam, so that
the hostler will not be required to put in fuel while the engine is in
his charge; should know that throttle valve is securely closed, reverse
lever in center of quadrant, cylinder cocks open, and if equipped with
independent brake, it to be applied; in fact, it is an excellent
opportunity for a mechanical officer to judge the ability of the fireman
and future engineer.
63. Q. Is the engineer responsible for the fireman's conduct while on
duty and for the manner in which the fireman's duties are performed?
A. He is. The fireman is under the direction of the engineer, and the
fireman's duties are to be performed in accordance with the engineer's
instructions.
64. Q. What is the duty of the superheater damper, and how does it
operate?
A. The duty of the damper is to control the flow of gases through the
large flues, thereby protecting the units which are contained therein
from being overheated after throttle is closed. The position of damper
when the engine is not working steam, is closed.
65. Q. What will be the effect on the steaming of the engine if the
damper does not open properly?
A. Engine will steam poorly for the reason that there will be no draft
through the large flues. The steam will not be superheated because
heated gases cannot come in contact with superheated units contained in
the large flues.
66. Q. How may steam failure be avoided in case the damper fails to
operate?
A. The counterweight may be tied up, thereby opening the damper.
=AIR BRAKE QUESTIONS=