A. Only a light smoke should show at the stack.
31. Q. What color is most desirable at peep holes in the fire-box?
A. A white color is most desirable.
32. Q. What will produce the bright red color?
A. Leaky steam pipes, side seams, flues and improper combustion will produce a ruddy color in the fire-box.
33. Q. How does water in the oil affect the fire?
A. Water in the oil will produce popping or kicking with the fire in the fire-box and at times the fire will die down entirely and then flash up as the water disappears and the oil reaches the burner. The most noticeable result of water in the oil is the fact that the fire will get very low. It will almost go out entirely and then will suddenly flash up again as the oil appears. Water in the oil produces a very dangerous condition and should be prevented immediately by draining the water from the fuel oil tank.
34. Q. Do you consider it advisable to keep the burners clean, and how often?
A. When equipped with steam blow-out pipes, they should be blown out before commencing trip so that burners will distribute oil evenly to each side of fire-box.
35. Q. What position should burner be with reference to level and in line with center of fire-box?