For the truss in Figure P9.27, compute the reactions and bar forces produced by the applied loads.
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Discuss why a draftsperson might use notes on a drawing.
What will be an ideal response?
The high and low pass filters in a twin-T oscillator act as a
A) phase shift filter B) notch filter C) bandpass filter D) negative feedback path
Why do some gas furnaces not require an electrical power supply?
A) They are ignited and extinguished manually with no thermostatic control B) The gas valve is operated with the voltage generated by the thermopile safety C) No gas furnaces require electricity, they operate on gas D) Once lighted, they never shut off
A device used to compare an analog voltage to a reference value, for the purpose of generating a digital signal is called a(n):
A) digital converter. B) comparator. C) analog limiter. D) step inverter.