3 Flashcards
True or false? Precipitation are static loads.
True.
Which of the following loads are NOT permanent (dead) loads?* 1. Hydrostatic 2. Uniform 3. Live 4. Concentrated 5. Distributed A) 1, 3 B) 1, 5 C) 2, 4 D) 3, 5 E) 1, 2, 3 F) 1, 3, 5
A) 1 (hydrostatic), 3 (live)
What is “flutter”?
Flutter: Rapid oscillation of a membrane structure caused by the aerodynamic effects of wind
What are damping mechanism?
viscoelastic devices typically install at structure joints to absorb energy from an earthquake by progressively diminishing vibratory and oscillatory motions and prevent destructive resonances from occurring.
What is differential settlement?
Uneven consolidation of the soil cause relative movement of different parts of a structure.
True or false?
Not all plumbing fixtures require a trap.
False. all plumbing fixtures require a trap.
What is a water hammer and how to avoid it?
Water-hammer: Concussion and banging noise can occur when a large volume of moving water is stopped abruptly.
To avoid: Air chambers are installed at fixture branches to prevent water hammer. The trap air elastically compresses and expands to equalize the pressure and flow of water in the system.
Which pipes are larger? Those of the supplying system or of the sanitary system?
Sanitary system, they rely on gravity for its discharge. It is not a pressured system
True or False? Electric heating allows control over the humidity.
False.
What serie of open-web steel joist offers longer spans, serie K or series LH/DLH?
series LH/DLH
In a steel floor, what is bridging?
horizontal or diagonal bridging to prevent lateral movement of the joists
Quelle est l’une des conséquences de l’absence de drain dans une fondation d’une maison?*
L’accumulation d’eau au pied de la fondation qui pourrait causer des infiltrations entre le mur et la dalle.
