As illustrated in the accompanying figure, ____ beams are popular, because they are strong and can be manufactured in any length and depth.
A. titanium
B. built-up wood
C. LVL
D. steel
Answer: C
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Problem 1.58* The Load and Resistance Factor Design method is to be used to select the two cables that will raise and lower a platform support¬ing two window washers. The platform weighs 160 lb and each of the window washers is assumed to weigh 195 lb with equip¬ment. Since these workers are free to move on the platform, 75% of their total weight and the weight of their equipment will be used as the design live load of each cable. (a) Assuming a resis¬tance factor ? = 0.85 and load factors ?D = 1.2 and ?L = 1.5, determine the required minimum ultimate load of one cable. (b) What is the corresponding conventional factor of safety for the selected cables?
Cost cutting practices such as using cheap materials and reducing budgets for research and
development has little impact on quality.
Indicate whether the statement is true or false.The suction pressure on a split AC system that is running with an excessive evaporator heat load
A) Will most likely pull into a vacuum B) Will be higher than normal C) Will be lower than normal D) Is not affected by the load
Bend relief is typically added to a sheet metal part to relieve stress, or the tear, that occurs when a portion of a piece of material is bent.
Answer the following statement true (T) or false (F)