For the same building (40' wide and 30' long), how many 12-foot pieces of diagonal bracing must be installed?
a. 4
b. 8
c. 16
d. 32
Answer: B
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?What is the minimum tensile strength of a class RG65 welding rod?
A. ?35,000 to 45,000 psi B. ?45,000 to 55,000 psi C. ?55,000 to 65,000 psi D. ?65,000 to 75,000 psi
Lotus Development has a software rental plan called SmartSuite that is available on the World Wide Web. A number of programs are available at $2.99 for 48 hours. If a construction company uses the service every week for an average of 48 hours, what is the future worth of the rental costs for 1 year at an interest rate of 1% per month, compounded weekly? (Assume 4 weeks per month.)
What will be an ideal response?
______________________ should not be worn while working on a construction site.
A. stocking caps B. gloves C. knee pads D. rings
Four continuous-time signals have the following descriptions.
Answer the following questions
1. Which continuous-time signals are even functions?
2. Which continuous-time signals are not even but can be made even by adding or subtracting a constant?
3. Which continuous-time signals are odd functions?
4. Which continuous-time signals are not odd but can be made odd by adding or subtracting a constant?
5. Which continuous-time signals have an average value of zero?
6. Which of the continuous-time signals are square waves?
7. What is the average signal power of x1(t) ?
8. What is the average signal power of x4(t) ?