A duct blaster is used
A) To install duct runs in approximately half the time of conventional methods
B) To install takeoffs onto plenums using high velocity and percussive force
C) To clean duct systems with high velocity air
D) To measure the amount of air leakage in a duct system
D
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Beam form bottoms made from plywood should be supported by 2 × 4 members and use plywood with a minimum thickness of _____.
a. 3/8" b. 1/2" c. 3/4" d. 1"
Most of industry-used water is either recycled for another use or returned to the natural water cycle
Indicate whether the statement is true or false
The alternator output current is produced in the ________
A) Diodes B) Regulator C) Stator D) Rotor
Who should remove a lockout if the person who put the lockout on is not present?
A. The plant engineer B. The safety officer C. The leadperson D. No one