The location of a crane’s center of gravity in relation to its tipping fulcrum directly affects its _____.
a. weight and load
b. quadrant of operation
c. leverage and stability
d. value and flexibility
c. leverage and stability
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The accepted rule for determining the angle of a jack arch states that "the skewback angle should be _____ of span of the opening for each 4" of arch depth."
A. ¾' per yard B. ½' per yard C. ¾" per foot D. ½" per foot
When specifying datum targets on a drawing, explain why the datum targets may indicate fixed or movable datum feature simulators.
What will be an ideal response?
Answer the following statements true (T) or false (F)
1 CO is an asphyxiant that can cause death in high enough concentrations. 2 A process technician completes the inspection of the furnace’s internal components. 3 When using combination burners, firebox temperature must be near the operating range before the fuel oil is introduced. 4 Boilers deliver steam to a process at a desired pressure and temperature that is used throughout the process facility. 5 The economizer section is used to decrease boiler efficiency by reheating the water as it enters the boiler system.
To ensure your safety on the jobsite, you must stay alert, understand the hazards involved, and _____________________________________.
What will be an ideal response?