Which general category of currently used batteries has the highest power density?
A. lead-acid
B. sodium metal hydride
C. nickel metal hydride
D. li-ion
Answer: D
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Speed data collected on an urban roadway yielded a standard deviation in speeds of ±5.6 mi/h. (a) If an engineer wishes to estimate the average speed on the roadway at a 95% confidence level so that the estimate is within ±2 mi/h of the true average, how many spot speed observations should be collected? (b) If the estimate of the average must be within ±1 mi/h, what should the sample size be?
What will be an ideal response?
When a process technician wants a control loop to keep the process near the actual set point, he/she will set the controller in:
a. AUTO b. MANUAL c. CASCADE
Match the faucet part to its function.
A. stem B. washer C. seat D. body E. handle F. spout G. packing H. packing nut or collar I. aerator J. supply inlet
Which of the following best describes how driving, braking, and cornering forces are transmitted to the frame on a truck is equipped with rubber load cushion-type equalizing beams?
A. transmitted directly through the rubber cushions to the frame brackets B. transmitted through rubber-bushed vertical drive pins in each cushion C. torque rods transmit 100% of these forces D. equalizing beams transmit 100% of these forces