Cuando se hace el trazado de una obra, las esquinas del edificio se marcan con _____.
a. estacas protectoras
b. bases
c. estacas de centro
d. puntos de referencia tem-
porales
Answer: C
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Line stop plugs can be installed in pipes from 1/2 to _____ inches in diameter.
a. 12 b. 24 c. 36 d. 48
A steam power plant, which can be modeled as a heat engine, is to reject heat to cooling water at 295 K. Plot the maximum possible thermal efficiency of the power plant for heat input temperatures ranging between 500 K and 800 K.
Given: TC = 295 K
How does altitude affect the firing rate of a furnace?
A) Altitude affects firing rates insignificantly. B) Higher altitudes have higher firing rates. C) Higher altitudes have lower firing rates. D) Higher altitude causes inconsistent firing rates.
When jump-starting a vehicle, which of these connections is the last connection to be made?
A) A B) B C) C D) D