A datum reference frame consists of ____ perpendicular planes.
A. one
B. two mutually
C. three mutually
D. four mutually
E. none of the above
Answer: C
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The system condition that may cause a compressor motor’s overload device to open is a(n) _____.
a. dirty condenser coil b. dirty evaporator blower c. uninsulated suction line d. frozen evaporator coil
Technician A says that water based fire extinguishers remove oxygen from the fire. Technician B says that CO2 fire extinguishers remove oxygen from the fire. Which technician is correct?
A) Technician A only B) Technician B only C) Both Technicians D) Neither Technician
What does the DSL technology use for carrying the data?
A. Data link layers B. Existing copper telephone lines C. Computer links D. Cable modems
Samba is a utility that uses the ____ protocol, which is also used by Windows systems for sharing folders and printers.
A. RPC B. NFS C. IP D. SMB