How does an absolute encoder work
What will be an ideal response?
Absolute optical encoders add enough emitters and receivers, usually four or
more in total, to give each position of the encoder its own unique binary address.
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A tank of 
volume contains air at 25°C and 101.33 kPa. The tank is connected to a compressed-air line which supplies air at the constant conditions of 45°C and 1500 kPa. A valve in the line is cracked so that air flows slowly into the tank until the pressure equals the line pressure. If the process occurs slowly enough that the temperature in the tank remains at 25°C, how much heat is lost from the tank? Assume air to be an ideal gas for which 
and 
What will be an ideal response?
Define a worst-case boundary.
What will be an ideal response?
Las planchas o los bloques aislantes pueden mantenerse temporalmente en su lugar con:
a. bandas elásticas. b. adhesivo. c. bandas de acero inoxidable. d. clavos de soldadura.
While performing steel-erection work, it is best to wear _____.
a. shirts with open pockets for easy access b. short-sleeve shirts to keep your arms free c. long-sleeved shirts d. an unbuttoned shirt over a t-shirt