A semicircular-sided tank is welded in the shop. The length of the tank’s bottom, shown in the figure, is 25”, and the radius is 6”. How long is the piece of metal used to form the sides of the tank, in inches? Round the answer to the nearest 1/16”.
ANS: 87 11/16
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Answer the following statements true (T) or false (F)
1. A braced-frame steel structure is generally more economical than a comparable rigid-frame structure. 2. A steel-frame building may consist of either a rigid frame or a braced frame. A combination of the two systems (braced- and rigid-frame systems) cannot be used in the same building. 3. A multistory steel-frame structure must be provided with a central shear core. 4. Cold-formed steel (CFS) is used in load-bearing walls, non-load-bearing walls, floors, and roofs. 5. The terms G40 and Cp40 refer to the same property of CFS members.
The operating characteristics of ____ motors make them suitable for applications like conveyors and compressors because of their high locked-rotor starting torque to get a load moving.
a. capacitor-start b. capacitor-run c. capacitor-start, capacitor-run d. split-phase
Identify four ways that heat gains in the conditioned space can occur.
What will be an ideal response?
Which of these is a popular tool for hand lettering?
a. a compass c. Ames guide® b. a protractor d. a T square