A crucial requirement whenever a rooftop installation is considered is:
A) To ensure that the roof structure can support the weight of the equipment.
B) To ensure that the unit cannot be seen from the front of the building.
C) That a power drop can be made directly from the utility pole to the unit.
D) That rooftop units can only be installed on flat roofs.
A
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En general, ¿cuánto juego axial deben tener los motores equipados con cojinetes de bolas?
a. Entre 1/32" y 1/16" b. Entre 1/4" y 1/2" c. Entre 5/8 y 3/4" d. Entre 1" y 1/4".
Which device protects the air pump from reverse exhaust pressure?
A) PCV valve B) Check valve C) EGR valve D) IAC valve
What is the difference between the while loop and the do-while loop?
What will be an ideal response?
A compressor pump down is performed in order to change the compressor oil. With the unit operating in high speed cool:
A. Front seat the receiver tank outlet valve B. Front seat the suction service valve C. Front seat the discharge service valve D. Front seat the bypass check valve