In a WLF wall assembly, a cripple stud is used
A) at a wall T-junction.
B) at a wall corner.
C) at the ends of a wall opening.
D) above a header or below rough sill.
E) both A and B.
D) above a header or below rough sill.
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Which of the following techniques use the concept of expected value?
a. Decision trees b. Payoff matrices c. Inventory models d. Both a and b e. Both b and c
A student measures the spring constant k of a spring by loading it and measuring the extension. (According to Hooke’s law, if l is the load and e is the extension, then k=l/e.) Assume five independent measurements are made, and the measured values of k (in N/m) are 36.4, 35.4, 38.6, 36.6, and 38.0.
a. Estimate the spring constant, and find the uncertainty in the estimate. b. Find an approximate value for the uncertainty in the average of 10 measurements. c. Approximately how many measurements must be made to reduce the uncertainty to 0.3 N/m? d. A second spring, similar to the first, is measured once. The measured value for k is 39.3. Approximately how much is the uncertainty in this measurement?
A hammer used by an electrician should have __________ and __________ claws.
a. short, straight b. long, straight c. short, curved d. long, curved
The quickest and easiest way to determine the thread specification of an existing thread is with a screw pitch gage.
Answer the following statement true (T) or false (F)