What is a hydronic terminal unit?
A) The coils and devices that heat the building
B) The last convector in a hydronic loop
C) A unit that is specifically designed for use in airports and train stations
D) A reverse return loop that is installed on the end of a hydronic run
A
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¿Cuál de los siguientes diámetros de tuberías requiere la menor cantidad de roscas por pulgada?
a. 1/2 pulgada (1,27 cm) b. 1 pulgada (2,54 cm) c. 2 pulgadas (5,08 cm) d. 3 pulgadas (7,62 cm)
Ultrasonic occupancy sensors are triggered by _____.
a. heat b. light c. motion d. sound
In what type system is the air and fuel combined in the intake manifold?
A) Port fuel injection B) Throttle body injection C) Both A and B D) Neither A nor B
Brake bleeding purges air from the hydraulic system
Indicate whether the statement is true or false