Discuss scaffold safety
What will be an ideal response?
Scaffolds must be supported by solid footings. A scaffold having a height exceeding three times its base dimension must be secured to the structure. When rolling scaffolds are used, the wheels must be locked when there are workers on the scaffold. No worker is to remain on the scaffold while it is being moved. All equipment should also be removed before moving a scaffold. Access to the work platform must be a fixed vertical ladder or other approved means.
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Discuss the different methods horticulturalists may use to control the growth rate,
size, and shape of plants. Which are the advantages and disadvantages of each method?
What will be an ideal response?Decorative joints are used to _____
a. relieve stresses in large slabs b. create patterns and designs c. add color to concrete patios and driveways d. control concrete cracking
AC motors can be designed to be operational in an explosive and dust-ignition environments
Indicate whether the statement is true or false
?How does water's flow velocity vary across a pipe's diameter?
A. ?remains constant across the diameter B. ?faster near the center of the pipe, and slower near the edges C. ?slower near the center of the pipe, and faster near the edges D. ?slower near the top surface, gradually increasing toward the bottom surface