A bus network topology differs from a star network topology in that ________
A) a star network topoogy supports full-duplex communications
B) devices connect to two other devices in a star network topology
C) devices connect to a hub in a bus network topology
D) devices share common communication lines in a bus network topology
D
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The component used to switch the heat pump unit between the heating and cooling modes of operation is the ____.
A. four-way valve B. bi-valve C. two-way valve D. switching valve
The presence of large numbers of formal and inflexible policies will
a. increase subordinate maturity. b. make it necessary for a leader to be more supportive. c. require the leader to be more directive. d. substitute for some forms of leadership. e. have little impact on required leadership.
Technician A says that all tires sold for passenger vehicle use must be approved by the DOT. Technician B says that the DOT code will indicate the build date of the tire. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
How much vacuum must a fuel oil pump produce to lift fuel oil up 6 ft?
A) 6 ÷ 2 = 3 in of vacuum B) 6 ÷ 3 = 2 in of vacuum C) 6 × 1 = 6 in of vacuum D) 6 × 2 = 12 in of vacuum