How many 4? × 8? sheets of plywood will be needed for a roof that measures 26? × 48??
A) 23
B) 30
C) 39
D) 44
Explanation: A)
B)
C) (26 × 48)/(4 × 8) = 1,248/32 = 39 panels
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The area in dispute between the United States and Great Britain in 1845 lay between the
A. 42nd parallel and the Columbia River. B. Cascade Mountains, the Columbia River, and Puget Sound. C. 36°30' line and the Columbia River. D. 49th parallel and the 54°40' line. E. Columbia River, the 49th parallel, and the Pacific Ocean.
"Pressure set up in a confined body of fluid acts equally in all directions and always at right angles to the containing surfaces." What is the name of this law?
A. Pascal's law B. Charles' law C. Boyle's law D. Lenze's law
Which of the following methods is not permitted for bonding metallic enclosures for service conductors?
A. Bonding-type bushings with a bonding jumper B. Bonding-type locknuts if there are no concentric knockouts C. Standard locknuts if there are no concentric knockouts D. Bonding wedges where there are no concentric knockouts
The OSR instruction is ANDed with the input instruction in an arithmetic rung to ________
A) Make the arithmetic instruction execute faster B) Force the arithmetic instruction to execute only one time while the input instruction is true C) Reduce the number of mathematical operations D) Simplify the operation of multiply and divide instructions