If you were to measure the cross section of a 2 x 4 you would find it to be 1.5 inches wide by 3.5 inches tall. What do the numbers “2 x 4” refer to?
a. Actual size
b. Nominal size
c. Approximate size
d. Rough size
Answer: b
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Panelboards that are not lighting panelboards are known as ____ or distribution panelboards.
A. circuit-breaker B. power C. fused D. feeder
?One way in which casting differs from extrusion or molding is that casting ____.
A. ?is initiated as a solid B. ?uses atmospheric pressure to fill the mold C. ?uses at least 300 psi to fill the mold D. ?uses PC and PP materials
A technician is paid $20.00 per flat rate hour and he/she had a job that the actual hours to complete the job was 1 1/2 hours and the flat rate book indicated the job pays 2 1/2 hours. What is the technician's effective pay rate?
A) $13.33 B) $30.00 C) $20.00 D) $33.33
A solution that has a pH of 9 is _____
A) weakly acidic B) strongly acidic C) weakly basic D) strongly basic