Why is it illegal to operate a torch with an acetylene pressure greater than 15 psi?
A) Hoses cannot be built to handle pressures exceeding 15 psi.
B) The torch cannot be manufactured to contain pressures exceeding 15 psi.
C) Acetylene is a rare and precious resource that must be used sparingly to ensure a supply in the future.
D) Acetylene becomes unstable and can explode above 15 psi.
D
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Spontaneous breakage generally occurs in ________.
A) laminated glass. B) tempered glass. C) heat-soaked tempered glass. D) heat-strengthened glass. E) annealed glass.
____ is the impact load required to break a test piece of weld metal.
A. Elongation B. Charpy V notch C. Minimum tensile strength D. Yield point
Cattle egrets can be found from Texas to Michigan, as far north as Maine, and all along the Gulf coast
a. True b. False Indicate whether the statement is true or false
Electronic technicians and engineers coined the term “____” to describe when a piece of equipment suddenly stopped operating.
a. blue plague b. black plague c. purple plague d. red plague