El dispositivo usado para verter el concreto en formas verticales es _____.
a. la cinta transportadora
b. la canaleta de caída
c. el carro para concreto
d. la pistola neumática
Answer: B
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The efficiency of a Carnot cycle operation between the same temperature limits as the Otto cycle above is nearest:
The pressure and temperature at the inlet to the ideal Otto cycle, with T-s diagram shown, are 100 kPa and 10ºC. The maximum temperature in the cycle is 1200ºC. Assume constant specific heats from Table below for all calculations.
A) 68%
B) 70%
C) 76%
D) 81%
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