Filter
Top Products
TRG-TRC013-EN 65
Quiz
6 Between the forward curved (FC) and backward inclined (BI) fans, which
one can handle higher static-pressure applications?
7 Explain why the forward curved (FC) fan is called an overloading type of
fan.
Questions for Period 3
8 List three methods of fan capacity control.
9 What method of fan capacity control “preswirls” the air in the direction of
fan rotation before it enters the fan wheel?
10 How is the capacity of a variable-pitch vaneaxial (VPVA) fan controlled?
Questions for Period 4
11 List two possible causes of system effect.
12 What document establishes laboratory testing methods for air-moving
devices?