If governing regulations require extension ladders to be set at such an angle that the distance from the top support to the foot of the ladder is approximately one fourth of the working length of the ladder, how many inches should the base of a ladder with a 12 1/4-foot working length be from the scaffold end frame?
What will be an ideal response?
36 3/4
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Fill in the blank(s) with the appropriate word(s).
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Indicate whether the statement is true or false
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________ create connection points between the main rafters
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