Which of the following is a true statement regarding the personnel roles in a crane lift?
a. The lift director is typically a professional engineer (PE).
b. The crane owner must assume the role of lift director.
c. A single individual can assume more than one role.
d. The signal person must be a certified rigger.
c. A single individual can assume more than one role.
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The length, L, of the point on any standard 82 degree included-angle drill can be calculated using the formula 0.575 x D where D represents the diameter of the drill. Determine the length of the drill point if the diameter is 15 mm. Round to three decimal places.
Fill in the blank(s) with the appropriate word(s).
Current rises at a(n) ____________________ rate in an inductive circuit.
Fill in the blank(s) with the appropriate word(s).
The stage after the elastic stage is known as the ____ stage.
A. dynamic B. failure C. breaking D. plastic
A mineral soil has a water content of 25 kg water per 100 kg dry soil. What is the approximate specific heat of this soil, expressed in calories per kilogram?
A) 250 B) 450 C) 590 D) 360 E) 640