How does a duct blaster measure air leakage in duct systems?
A) It measures the airflow required to maintain a specified pressure.
B) It uses a velocimeter to calculate the speed of the sonically diffused airstream.
C) It measures the time it takes the duct system to depressurize.
D) It measures the actual leakage area through reflected pressure waves.
A
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The decimal equivalent of the BCD value 1001 0011 is ________
A) 17610 B) 9810 C) 16610 D) 9310
There are three primary elements required when giving verbal commands to a crane operator. Which of the following is not one of the required elements?
a. Function and direction
b. Function followed by a Stop command
c. Distance and/or function
d. Distance and/or speed
Describe what flashing is and where it is typically placed.
What will be an ideal response?
Answer the following statement(s) true (T) or false (F)
Corner boards are always used when wood siding is applied vertically.