What does 'static pressure' represent in a duct system?

What does 'static pressure' represent in a

Multiple choice — select the best answer

AThe velocity of air moving through the duct
BThe pressure exerted equally in all directions on the duct walls
CThe total volume of air in the duct at a given moment
DThe temperature differential between supply and return air

✓ Correct answer: B. The pressure exerted equally in all directions on the duct walls Static pressure acts outward in all directions on duct walls and is what drives leakage through seams and holes. It is distinct from velocity pressure, which acts only in the direction of airflow.

.q-expl{display:block!important}.q-opt[data-idx="1"]{border-color:#16a34a;background:#f0fdf4}.q-opt[data-idx="1"] .oltr{background:#16a34a;color:#fff}.q-opt{cursor:default!important;pointer-events:none}

Keep practising. Use the free HVAC NATE PDF, watch the YouTube walkthrough, or unlock all 10 web questions with timed mock exams.

Free PDF Video walkthrough

Topic: Airflow & Ductwork

← Previous Next → 🎲 Random question ↩ Back to all questions

Keep practising

What does 'static pressure' represent in a duct system?

Related questions — Airflow & Ductwork

Free practice here. Timed mocks when you are ready.