The installation of asphalt shingles begins with the starter course at the eave. What does the starter course consist of and how much roof area does it cover?
What will be an ideal response?
The starter course consists of a regular shingle with tabs cut off, which is laid from one end of the eave to the other.
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All branch circuits serving patient care areas shall be provided with a(n) ____ by installation in a metal raceway system or a cable having a metallic armor or sheath assembly.
A. adequate insulation B. effective ground-fault current path C. discrete pathway D. rigid isolated conduit
Show that a series LR circuit is a lowpass filter if the output is taken across the resistor. Calculate the corner frequency fc if L = 2 mH and R = 10 k?.
What will be an ideal response?
Technician A says that when making point-to-point measurements with a tram gauge, the pins should always be adjusted so the bar can be held parallel to the datum plane. Technician B says one long diagonal measurement is more accurate than three shorter ones. Who is correct?
A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B
Boards used as edge forms for tilt-up panels are commonly _____
a. 1" × 3" or 1" × 4" lumber b. 2" × 3" or 2" × 4" lumber c. 2" × 6" or 2" × 8" lumber d. 2" × 8" or 1" × 10" lumber