When using an air impact wrench, be sure to use an extra thick socket, called a(n) _____ socket.
What will be an ideal response?
Impact
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PROBLEM 2.10
A 1.5-m-long aluminum rod must not stretch more than 1 mm and the normal stress must not exceed 40 MPa when the rod is subjected to a 3-kN axial load. Knowing that E = 70 GPa, determine the required diameter of the rod.
Cad cells or photo cells are usually used in conjunction with a primary control and are most often found on electric furnaces.
Answer the following statement true (T) or false (F)
Technician A says electronic leak detectors make a noise when a leak is detected. Technician B says that often the same leak detector can be used for R-12 and R 134a. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
A single-zone constant-air-volume system is best suited for conditioning:
A) A building that needs close control of several different areas. B) An area with a big variation in load. C) The perimeter of a building. D) A building's core area.