Author Question: If a technician wanted to accurately measure static pressure in a duct system, how would she place ... (Read 27 times)

penza · **on:** Jul 24, 2018

If a technician wanted to accurately measure static pressure in a duct system, how would she place the sensing probe of the magnehelic gauge?

A) At the return grill inlet B) In line with the air flow
C) At the supply register outlet D) Perpendicular to airflow

Question 2

To safely increase the pressure in a refrigerant cylinder while charging a system, the technician should:

A) Run warm water over the cylinder.
B) Heat the top of the cylinder with a small propane torch.
C) Heat the bottom of the cylinder with a small propane torch.
D) Immerse the cylinder in a tub of boiling water.