The approaches to management that try to find the “one best way” to solve a management
problem are called contingency approaches.
Indicate whether the statement is true or false.
F
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Problem 1.68 A force P is applied as shown to a steel reinforcing bar that has been embedded in a block of concrete. Determine the smallest length L for which the full allowable normal stress in the bar can be devel¬oped. Express the result in terms of the diameter d of the bar, the allowable normal stress ?all in the steel, and the average allowable bond stress ?all between the concrete and the cylindrical surface of the bar. (Neglect the normal stresses between the concrete and the end of the bar.)
Warm season turfgrasses are limited by cold weather, which imposes winter dormancy
Indicate whether the statement is true or false
Which of the following is a true statement?
a. Since shielding gases are not toxic, they do not represent a hazard of any kind. b. In confined spaces, pure oxygen is the best choice to ventilate the space and push out hazardous gases. c. Acetylene is heavier than air and collects in any depressed area when it is released. d. Manganese is a hazardous material found in stainless steel and in some filler metals.
A wye-delta transformer has a turns ratio of 2:1. It has a secondary line voltage of 480 V. The secondary is connected to a wye-connected three-phase resistive load of 50 ? in each phase. What is the current flow is in each load resistor?
A. 1.6 A B. 2.8 A C. 4.77 A D. 5.54 A