When making louver cuts, what is used as a fulcrum to make the louvered openings?
a. roof support
b. decking
c. purlin
d. ridge pole
Answer: a. roof support
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Switch and relay input contacts in the ladder diagram electrical control circuit are often configured to implement _______________ logic expressions that determine the logical operation of the control circuit.
Fill in the blank(s) with the appropriate word(s).
A(n) ____________________ is a product that is brought into this country from another country
Fill in the blank(s) with correct word
Answer the following statement(s) true (T) or false (F)
1. The National Standard Plumbing Code requires the water distribution system to be sized for a maximum velocity of 12 feet per second at the design flow rate. 2. Curb valves are located at the termination of the water service and provide isolation safety and maintenance capabilities for a structure. 3. Codes state that the maximum allowable pressure in a structure shall be limited to 80 psi under static conditions (no flow). 4. Riser valves are required when water lines pass through more than one floor. 5. Gray water systems shall never be connected to the water distribution system regardless of the degree of treatment.
Demand calculations for generator set(s) sizing shall be based on the following: (1) prudent demand factors and historical data, (2) ____, (3) Article 220 feeder calculation procedures, or (4) any combination of the preceding.
A. average load B. peak load C. connected load D. cable (material) capacity