In commercial slab-on-grade structures, the top course of the foundation walls may serve as _____
a. raceways
b. edge reinforcement
c. sills
d. edge forms
d
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Para sujetar temporalmente la lámina de revestimiento en su lugar sobre un recipiente, se utiliza ____.
a. alambre b. un precinto de gaucho o cuerda elástica c. soga d. cinta
In reciprocating compressors used in air conditioning, the motor is mainly cooled by ____.
A. air over the shell of the assembly B. discharge gas from the compressor C. suction gas returning to the compressor D. Both a and c.
At one time most farmers raised chickens for both meat and eggs
Indicate whether the statement is true or false
Answer the following statement(s) true (T) or false (F)
A metallurgist makes several measurements of the melting temperature of a certain alloy and computes a 95% confidence interval to be 2038 ±2°C. a. There is 95% probability that the true melting temperature is in the interval 2038 ± 2°C. b. If the experiment were repeated, the probability is 95% that the mean measurement from that experiment would be in the interval 2038 ± 2°C. c. If the experiment were repeated, and a 95% confidence interval computed, there is 95% probability that the confidence interval would cover the true melting point. d. If one more measurement were made, the probability is 95% that it would be in the interval 2038 ± 2°C.