Un sistema de alarma contra incendios que permite la identificación discreta de señales de alarma a nivel del detector es un sistema _____.
a. direccionable
b. multiplex
c. de cableado convencional
d. zonificado
a. direccionable
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Technician A says that the state of charge of a NiMH battery can be determined by measuring cell voltage. Technician B says that many factors should be considered in determining the state of charge of a NiMH battery, including temperature, output current, and cell voltage. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Zeotropic refrigerant blends condense and evaporate at:
A) Multiple temperatures. B) A single pressure. C) A single temperature. D) Multiple pressures.
The first consortium to deploy satellite telephony, whose intent is to provide dial tone anywhere in the world without the need for wires, cellular towers, or other land-oriented connections is:
A) Teledesic B) Globalstar C) Iridium D) all of the above share the same objective and were deployed at the same time
If you are constructing a building where siding will be applied over the sheathing, you should use sheathing
with a minimum thickness of _____. a. 3/8? b. 1/2? c. 5/8? d. 1?