The required color of a stucco surface is _______.
A) obtained by spray painting the surface with the required color after the finish coat has
fully cured.
B) obtained by spray painting the surface with the required color immediately following
application of the finish coat.
C) integral to the mix of the finish coat.
D) obtained by using colored Portland cement and lime.
E) integral to the mix of all coats used in stucco.
C) integral to the mix of the finish coat.
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In order to permit the emergence of the maximum number of photons in an LED, the conducting surface _____.
a. is given a forward bias b. is given a reverse bias c. connected to the P-type material is much smaller d. connected to the N-type material is much smaller
A fresh feed stream contains 50.0 mol/s each of A and B and no other compounds. It is mixed with a recycle stream and enters a reactor. The reaction A + B ? C is carried out in the reactor at P= 0.1 MPa. The reaction reaches equilibrium and the reactor effluent is 40 mol% A, 40 mol% B and 20 mol% C. The reactor effluent is sent to a flash vessel, and the streams leaving the flash vessel are at VLE. The liquid leaving the flash is essentially pure C and is the product from the process. The vapor leaving the flash contains 49.0 mol% A, 49.0 mol% B and 2.0 mol% C, and this entire stream is recycled. The entire process operates at steady state. Which of the following is accurate, based on this process description?
A. The molar flow rate of the product stream is 50 mol/s. B. The equilibrium constant is 0.8, IF the mixture leaving the reactor is an ideal gas. C. The equilibrium constant is 0.8, IF the mixture leaving the reactor is an ideal liquid solution and the Poynting correction factor is negligible. D. All of the statements A through C are true, based upon the process description. E. The process description does not contain enough information to determine whether statements A, B and C are true or not.
The safety switch in the chilled water line that is activated by water flow is called a ____________________.
Fill in the blank(s) with the appropriate word(s).
The selectivity of a given band-pass filter has degraded significantly, yet the fr is within tolerance. Which of the following could have caused this?
A) The capacitance has increased. B) The load has opened. C) The inductance has increased. D) none of the above