Why do air-handling units require field adjustment during the commissioning phase?
A) The performance requirements of the blower cannot be determined in advance.
B) Manufacturing errors that affect blower performance are common.
C) To match the blower performance to the system requirements
D) Air-handling units normally do not require field adjustment.
C
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Four resistors are connected in series across an 18 V source. Three resistors drop 0 V and one resistor drops 18 V. What's the trouble?
A) The three resistors are open. B) Two of the resistors are shorted. C) One resistor is open. D) There is no trouble; these voltages are normal.
¿Qué cifra se debe usar para la carga de iluminación general de una residencia de 1.740 pies cuadrados (161,65 m2)?
a. 5.220 VA b. 6.090 VA c. 6.525 VA d. 6.960 VA
____ provide career counseling, give aptitude and ability/interest tests, locate jobs, and arrange job interviews.
A. Magazines B. Newspapers C. Placement offices D. Health departments
What is the reason that air tanks must be drained
Air brake