What two fasteners are used with sheet metal square and rectangular duct?
A. "S" fasteners (clips) and drive clips (cleats)
B. staples and tape
C. self-tapping screws and draw bands
D. tabs and adhesives
Answer: A
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An exhaust air stream contains 4000 ppm methane, 1000 ppm ethane, and 5% oxygen from a landfill.
a. How many moles of oxygen are required for combustion? b. Does additional air need to be added to the exhaust gas to reach the required amount of oxygen? c. If so, what percentage of make-up air must be added? What will be an ideal response?
Based on the front and right side views, how should A1 be located on A4?
Review drawing number 523879C0A and then answer the question.
Whereas about 35 to 40 percent of a steer's body weight is edible meat, a catfish is about ____ percent edible meat
a. 15 c. 55 b. 25 d. 75
A ____ is a conductor with a special heat-resistant insulation.
A. cartridge B. blade C. fusible link D. ceramic