The thermostats on most residential air-conditioning systems are:
A) Wireless communicating thermostats. B) Low-voltage thermostats.
C) Milli-voltage thermostats. D) Line voltage thermostats.
B
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Si se observan pérdidas en las mangueras, tuberías o accesorios de una grúa hidráulica, el operador de la grúa DEBE:
a. detener la operación y salir de la grúa inmediatamente b. indicar en una nota que un técnico hidráulico debe revisar las pérdidas lo antes posible c. bajar la carga al suelo y asegurar la grúa hasta que se revisen las pérdidas d. activar el indicador de carga-momento
Tractor and straight truck spring brakes will come fully on when the air pressure drops to a range of
Air brake
The temperature sensor used in chilled-water VAV systems to detect when the outside air is cold enough to cause freezing, is typically called a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).
What are butt spurs on a ladder?
A. Protrusions that attach the hose strap to the ladder B. The teeth of the cam system that extends the fly sections C. Bumps and dents on the foot pad D. Spikes on the base that keep it from slipping