Centrifugal chillers range in size from ____ tons for a single chiller.
A. 10 to 50
B. 10 to 80
C. 50 to 500
D. 100 to 10,000
Answer: D
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IDENTIFY TEST PROCESS SYMBOLS AND DIAGRAMS
The subsequent problems deal with the switched RC circuit below. Assume that the capacitor has no charge to begin with, and assume that VA and VB are constant dc voltages.
Immediately after the switch is closed (i.e., the circuit is not in steady state yet), what is the correct expression for the current (I), given the polarity shown?
A. ? or ?? B. (VA ? VB) / R C. (VB ? VA) / R D. VA / R E. 0
Technician A says that as axle shafts rotate in one direction to drive the wheels, the axle housing attempts to rotate in the opposite direction. Technician B says this is called torque steer. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
What does error detection and correction techniques rely heavily on?
A. Digital signal processing B. Baseband transmission C. Pulse modulation D. Capacitance