First coal.—How soon would you put coal on after the fire is lit? How deep would you make the first layer of coal? [II. 368], [401].
Amount of coal.—How much coal would you put on the fire at a time? [II. 368], [401].
Even heat.—How can an even temperature be kept up in the fire box? Why is it necessary to keep an even temperature in the fire box? [II. 368], [370].
Shaking grate.—What is the advantage possessed by shaking grate bars? [II. 369].
Before cleaning a fire.—What preparations would you make before cleaning the fire? [II. 369].
Fire tools and their uses.—What tools are used in cleaning a fire? And what is the use of each? [II. 369].
Draught while firing.—How should the draught be regulated while the fire is being cleaned? [II. 369].
Temporary interruption.—What should be done to prevent blowing off through the safety valve when the engine is stopped and no steam is being taken from the boiler? [II. 369].
Blue flame.—What does blue flame in the fire box indicate? [II. 369].
Water supply at night.—How much water would you have in a boiler when leaving it for all night? [II. 369].