Author Question: Technicians should know that fan speed is directly related to the amount of air a fan can move; ... (Read 28 times)

dakota nelson · **on:** Jul 24, 2018

Technicians should know that fan speed is directly related to the amount of air a fan can move; therefore, doubling the fan speed will ________ the amount of air flow.

A) increase by 10 percent B) double
C) triple D) increase by 25 percent

Question 2

How can a technician determine a major component failure on a mid-efficiency furnace?

A) The technician can send the control box to the manufacturer.
B) The technician must examine each component to ensure it is operating properly.
C) The technician can use the self-testing feature on the control box.
D) The unit owner must accurately describe how the unit is operating to diagnose component failure.