Systems: Environmental Quiz

Question 1 of 9

1. Question

1 point(s)

In a turbocharged reciprocating aircraft like the Cessna 210, where does the pressurization air come from?

The turbocharger’s compressor section
The auxiliary power unit (APU)
The engine intake manifold

Question 2 of 9

2. Question

1 point(s)

What is the purpose of the outflow valve in a pressurization system?

It regulates cabin pressure by controlling how much air escapes
It prevents external air from entering the aircraft
It supplies pressurized air to the cabin

Question 3 of 9

3. Question

1 point(s)

How does the cabin pressure controller help the pilot?

It allows the pilot to select the desired cabin altitude and controls pressurization rates
It provides emergency oxygen in case of a failure
It automatically sets the cabin altitude to match outside conditions

Question 4 of 9

4. Question

1 point(s)

What is the function of the positive pressure relief valve?

Prevents the cabin from becoming over-pressurized
Releases oxygen into the cockpit when needed
Opens if external pressure exceeds cabin pressure

Question 5 of 9

5. Question

1 point(s)

How do pressurization systems in turbocharged reciprocating aircraft differ from jet aircraft?

Turbocharged reciprocating engines use turbocharger bleed air, while jets use high-pressure engine bleed air
Recip pressurization systems allow for cabin altitudes lower than 8,000 feet
Jets require supplemental oxygen, whereas turbocharged recips do not

Question 6 of 9

6. Question

1 point(s)

What is the typical maximum pressure differential (ΔP) in a Cessna 210 pressurization system?

3.35–5.5 psi
8.0 psi
10.5 psi

Question 7 of 9

7. Question

1 point(s)

What happens if the turbocharger fails in a pressurized aircraft?

The pressurization system will stop functioning, and the pilot may need to descend
The outflow valve will automatically seal shut
The aircraft will automatically switch to an electric backup compressor

Question 8 of 9

8. Question

1 point(s)

What is the function of the dump valve in a pressurization system?

Rapidly depressurizes the cabin in an emergency
Prevents the turbocharger from overworking
Gradually decreases cabin pressure over time

Question 9 of 9

9. Question

1 point(s)

Why is moisture control important in a pressurization system?

To prevent condensation and icing in the air ducts
To increase the effectiveness of the turbocharger
To maintain a dry environment for electrical components

Aircraft Systems Course

Jon K