Appearance Of a joint.—What is the appearance of a finished ground joint? [II. 137].

Grade of emery.—About what grade of emery would you use to make a ground joint? [II. 137].

Best heat joint.—What is the best kind of joint to withstand great heat or flame? [II. 138].

Best water joint.—What are the best kinds of joints for withstanding water pressure? [II. 138].

Fitting a flange.—In fitting a flange to a boiler what part of the flange face should bed most? [II. 140].

Rust joint.—- How are rust joints made? [II. 140].

Leaky plug.—How would you test the fit of a leaky plug in a cock? [II. 144].

Well-ground plug.—What is the appearance of a well-ground plug? [II. 145].

Quick brass fitting.—Describe the quickest method of fitting a new brass or bearing box to its journal. [II. 147].

Babbitt bearing.—What is the principal advantage of a Babbitted bearing? [II. 156].