Explain how fire resistance is accomplished in heavy timber construction.
What will be an ideal response?
Heavy timbers are able to absorb heat and flames much longer than other structural materials. By producing a char when exposed to fire, heavy timbers are able to maintain their structural capacity longer than would structural steel. The char produces a layer of fire protection that shields the wood from sustained fire damage and prevents strength loss. Much of the structural strength is retained until the cross sectional area becomes so small that it will no longer carry the load.
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The emergency brake system uses parts of the service and parking brake systems to stop the vehicle in a brake system failure
Answer the following statement(s) true (T) or false (F)
. An ideal gas has CP* = 5R. I enters an adiabatic valve at P = 0.5 MPa and T = 400 K and a flowrate of 10 mol/s. If the exiting pressure is 0.1 MPa, what is the rate at which entropy is generated in the valve?
A. 134 J/K B. -13.4 J/mol•K C. 149 J/K•s D. 134 J/K•s E. Insufficient information to solve
Receptacle outlets must be installed on or above, but not more than __________ above the kitchen countertop or work surface.
a. 6 inches b. 12 inches c. 20 inches d. 24 inches
In a parallel RLC circuit just above the resonant frequency, the impedance is:
A) at maximum. B) more inductive. C) at minimum. D) more capacitive.