According to the NFPA, a hydrant with a flow rate of 1000 to 1499 gpm may have a(n) __________-colored bonnet or cap.
A. light blue
B. green
C. orange
D. red
Answer: B. green
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A bridge that consists of two independent beams that extend from opposite banks toward the center of the waterway is a _____.
a. suspension bridge b. cantilever bridge c. box girder bridge d. cable-stayed bridge
The volume of a sphere equals four times the radius of the sphere times pi.
Answer the following statement true (T) or false (F)
Output devices that cause movement are called ____.
A. actuators B. inducers C. diodes D. capacitors
In a sample of 20 bolts, the average breaking torque was 89.7J with a standard deviation of 8.2J. Assume that the breaking torques are normally distributed.
a. Find a 99% prediction interval for the breaking torque of a single bolt. b. Find a tolerance interval for the breaking torque that includes 95% of the bolts with 99% confidence.