The four major phases of construction in order are:
A) Dried in, framing, foundation, and finish work. B) Foundation, framing, dried in, and finish work.
C) Dried in, foundation, framing, and finish work. D) Foundation, dried in, framing, and finish work.
B
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Perhaps the greatest inhibiting factor for American artists in the first half of the 19th century was the
A. lack of first-rate art schools. B. Puritan prejudice that art was a waste of time. C. cultural dependence on Europe. D. lack of adequate patronage from the wealthy or the government. E. popular suspicion of artistic creativity.
In which of the following applications would you be more likely to find a 16-liter diesel engine?
A. pick up and delivery vehicle B. fleet linehaul truck C. city transit bus D. independent broker/ owner operator
Radiocarbon dating: Carbon-14 is a radioactive isotope of carbon that decays by emitting a beta particle. In the earth’s atmosphere, approximately one carbon atom in 
is carbon-14. Living organisms exchange carbon with the atmosphere, so this same ratio holds for living tissue. After an organism dies, it stops exchanging carbon with its environment, and its carbon-14 ratio decreases exponentially with time. The rate at which beta particles are emitted from a given mass of carbon is proportional to the carbon-14 ratio, so this rate decreases exponentially with time as well. By measuring the rate of beta emissions in a sample of tissue, the time since the death of the organism can be estimated. Specifically, it
is known that t years after death, the number of beta particle emissions occurring in any given time interval from 1 g of carbon follows a Poisson distribution with rate 
events per minute. The number of years t since the death of an organism can therefore be expressed in terms of ?:
An archaeologist finds a small piece of charcoal from an ancient campsite. The charcoal contains 1 g of carbon.
a. Unknown to the archaeologist, the charcoal is 11,000 years old. What is the true value of the emission rate ??
b. The archaeologist plans to count the number X of emissions in a 25 minute interval. Find the mean and standard deviation of X.
c. The archaeologist then plans to estimate ? with 
= X/25 . What is the mean and standard deviation of ?
d. What value for would result in an age estimate of 10,000 years?
e. What value for would result in an age estimate of 12,000 years?
f. What is the probability that the age estimate is correct to within ±1000 years?
OSHA 1910.335 requires __________ tools to be used whenever an electrician is working on exposed energized circuits or equipment.
a. clean b. insulated c. covered d. new