Another name for a smart valve positioner is a(n) _____
A) electro-pneumatic transducer B) HART® communicator
C) digital valve controller D) discrete valve modulator
C
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Liquid water, with a density of 1000 kg/m3, flows at a velocity of 8.5 m/s through a circular pipe with a diameter of 42.0 mm. Determine the volumetric flow rate and the mass flow rate of the water.
Given: p = 1000 kg/m3, V = 8.5 m/s, D = 42.0 mm = 0.042 m What will be an ideal response?
Fluid under pressure can be used to transmit motion and force because ________.
A) Fluid conforms to the shape of its container B) Fluids under pressure will apply pressure equally in all directions C) Fluids cannot be compressed D) All of these
Which of the following is a common flow-sensing element that creates a difference in pressure that can be measured by a D/P cell?
A) Rotating piston B) Oval gear C) Orifice plates D) Rotating vane meters
Even with increased leisure time activity for the American public, employment opportunities offered by state and federal governments are not expected to ____
A) increase B) decrease C) stay the same D) none of these