The latching circuit performs a memory function by retaining an output if a momentary input has occurred.
Answer the following statement true (T) or false (F)
True
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Air flows at steady state through a horizontal, insulated pipe with inside diameter of 4 cm. A pressure drop results from flow through a partially opened valve. Just upstream from the valve, the pressure is 7 bar, the temperature is 45°C, and the average velocity is 20 
If the pressure just downstream from the valve is 1.3 bar, what is the temperature? Assume for air that PV/T is constant, 
= (5/2)R, and 
= (7/2)R.
What will be an ideal response?
A truck is driven on the interstate at a constant speed, as the speedometer reports a speed of 60 MPH. The passenger records a time of exactly 56 seconds between mile markers. Knowing the speedometer is in error, and that the old speedometer gear has 14 teeth, how many teeth should a replacement gear have?
What will be an ideal response?
Many ultrasonic sensors have an analog output of voltage or current, the value of which is determined by the ____.
A. size of the detector B. capacitance of the detector C. size of the object D. distance to the object
This type of tolerance is used to locate features of parts that are to be assembled and mated.
A. positioning tolerance B. symmetry tolerance C. concentricity tolerance D. runout tolerance