The time required for a sample and hold amplifier to sample its final value when the control voltage switches from its hold level to its sample level is called
A) droop B) aperture time C) feedthrough time D) acquisition time
D
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A triple-duty valve serves as a shut-off valve, a balancing valve, and a _____.
a. differential pressure valve b. drain valve c. zone valve d. check valve
A long cool-down period between furnace on-cycles indicates _____.
a. normal operation b. oversized equipment c. undersized equipment d. good latent heat control
The traffic on the design lane of a proposed four-lane rural interstate highway consists of 40% trucks. If classification studies have shown that the truck factor can be taken as 0.45, design a suitable flexible pavement using the 1993 AASHTO procedure if the AADT on the design lane during the first year of operation is 1000, The pavement structure will be exposed to moisture levels approaching saturation 20% of the time, and it will take about one week for drainage of water. Effective CBR of the subgrade material is 7. CBR of the base and subbase are 70 and 22, respectively, and Mr for the asphalt mixture, 450,000 lb/in2.
pi = 4.2, and pt = 2.5. Growth rate = 4% Design life = 20 years Reliability level = 95% Standard deviation = 0.45 What will be an ideal response?
When floor drains are included or where water must be allowed to run off, the slab is ____ (sloped slightly).
A. compressible B. planed C. pitched D. malleable