An ideal refrigerant should be:
A. non-combustible
B. non-toxic
C. have convenient freeze/ boil temperatures
D. all of the above
Answer: D
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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.
A long time after the switch has been closed (i.e., the circuit is in steady state), what is the correct expression for VC, given the polarity shown?
A. 0 B. VA ? VB C. VA D. VB ? VA E. VB
Technician A says that intercoolers are used in turbocharger systems to cool the turbo bearings. Technician B says that some intercoolers are water cooled. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Which mode of operation results in a richer air-fuel mixture near the spark plug?
A) Stratified B) Stoichiometric C) Homogeneous D) Knock protection
A ____ is a collection of nodes in which the segments are geographically dispersed and the physical link is often a data communications channel provided by a public carrier.
A. LAN B. server C. web site D. WAN