If each common rafter (including tail) of a gable roof is 14? long, how many 16? pieces of lumber will be needed
to provide common rafters for a 30? long building with no overhang constructed on 24? centers?
A) 28
B) 30
C) 32
D) 42
Answer: C
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Power to low-voltage equipment must be supplied from a(n) _____.
a. autotransformer b. critical system circuit c. individual portable isolation transformer d. double-ended system
?Tack welders ____.
A. ?clean slag from the welds, and help position weldments B. ?operate machines or automatic equipment used to make welds C. ?often help the welder by making small welds to hold parts in place D. ?design, specify, and oversee the construction of complex weldments
Answer the following statement(s) true (T) or false (F)
1. All electrochemical batteries have three major parts: an anode, a cathode, and an electrolyte. 2. All hybrids that have an electric motor inside the transmission have at least two. 3. BMW’s X6 hybrid uses the same engine and transmission as a BMW 7 series hybrid. 4. The Hyundai Sonata Hybrid uses BAS and ISAD systems. 5. All fuel cell vehicles have regenerative braking and 12-volt auxiliary systems.
While multisplit units are limited to a single outdoor unit, large VRF systems can combine as many as ________ outdoor units manifolded together to increase overall system capacity
A) two B) three C) five D) four