Which of the two one-way joist floor systems?standard module or wide module?is more common in contemporary concrete construction and why?
What will be an ideal response?
Wide-module system is more common because the thickness of the slab must be large to span over the wider spacing between joists. This matches the slab thickness requirement for fire resistance in contemporary construction. In the case of standard module, a slab thickness of 2 to 2-1/2 in. is structurally adequate, which is inadequate for fire resistance requirement.
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What will be an ideal response?
Which statement best describes the phase angle of a parallel RLC circuit at resonance?
A) With a net reactance at maximum the phase angle is zero. B) With a net reactance at minimum the phase angle is zero. C) Total current flow is minimum. D) either A or C
The most common type of built-up framing member used in certain heavy-load or long-span situations is the ____, which is either a standard rolled shape that has been reinforced or a new shape made entirely of steel plates.
A. XX-strong pipe B. built-up girder C. reinforced structural pipe D. tempered structural tubing
An ____ diaphragm valve is used to prevent overheating.
A. air-to-open B. air-to-close