Q. Is he to be blamed under such circumstances?
A. Yes.

Q. Why?
A. Because if he is deceived by it it shows he has neglected
something.

Q. What is meant by "Priming."
A. It is the passing of water in visible quantities into the
cylinder with the steam.

Q. What would you consider the first duty of an engineer on
discovering that the water was foaming or priming
A. Open the cylinder cocks at once, and throttle the steam.

Q. Why would you do this?
A. Open the cocks to enable the water to escape, and throttle
the steam so that the water would settle.

Q. Is foaming the same as priming?
A. Yes and no.

Q. How do you make that out?
A. A boiler may foam without priming, but it can't prime
without first foaming..

Q. Where will you first discover that the water is foaming?
A. It will appear in the glass gauge, the glass will have a
milky appearance and the water will seem to be running down
from the top, There will be a snapping or cracking in the