Water Tank System Operation Quiz
18 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What are the primary sources of pressure for the potable water tanks?

electrically-powered air compressor, engine bleed air, or Auxiliary Power Unit (APU) bleed air pressure

How is waste effluent flushed from the vacuum toilet(s) to the waste storage tank?

using the pressure difference between the cabin and the waste tank

What is the purpose of the Potable Water System (PWS)?

To provide potable, filtered water to galley and lavatory fixtures, bidets, and showers.

What is the purpose of the COLD TEMPERATURE INHIBITED message displayed on the galley touchscreen?

<p>Prevent damage to the valves in case ice has formed on the valve body from residual water.</p> Signup and view all the answers

What is the purpose of the system purge mode for the water system?

<p>To ensure minimal residual water remains in the system by forcing air through the water filter and lines.</p> Signup and view all the answers

What are the indications that the Purge cycle has been completed?

<p>The aircraft control system will indicate the completion of the Purge cycle via the GCMS Touchscreen.</p> Signup and view all the answers

How is the power supply/control for the air compressor achieved?

<p>115V AC, 400 Hz, 3-phase power from the aircraft Main AC bus</p> Signup and view all the answers

What are the commanded positions of the Forward Gray Water Drain valve (V5) during different aircraft conditions?

<p>The Forward Gray Water Drain valve (V5) is open when the aircraft is on the ground and closed when the aircraft is in the air.</p> Signup and view all the answers

What happens when the external tank is considered full during the filling process?

<p>The tank is considered full when a solid stream of water flows from the drain mast.</p> Signup and view all the answers

How is the storage capacity of the Potable Water System (PWS) achieved, and why is this system architecture designed this way?

<p>The PWS has a storage capacity of 40 gallons, comprised of two independent systems (A and B), each supplied by a 20-gallon water tank, to enhance reliability.</p> Signup and view all the answers

What are the primary sources of pressure for the potable water tanks?

<p>Electrically-powered air compressor, engine bleed air, Auxiliary Power Unit (APU) bleed air pressure</p> Signup and view all the answers

How is waste effluent flushed from the vacuum toilet(s) to the waste storage tank?

<p>Using the pressure difference between the cabin and the waste tank</p> Signup and view all the answers

What is the purpose of the Tank Isolation valves V2A and V2B?

<p>To close the tank isolation valves and the air supply valve, and command the supply valves to 'All Drain' to allow system line venting.</p> Signup and view all the answers

What is the purpose of the COLD TEMPERATURE INHIBITED message displayed on the galley touchscreen?

<p>To prevent damage to the valves in case ice has formed on the valve body from residual water</p> Signup and view all the answers

How are the lnner1ine™ heaters used throughout the supply and gray water lines for freeze protection?

<p>Inserted through the flexible hoses and rigid tubing, the installation allows a single heater to route through several lines.</p> Signup and view all the answers

What is the purpose of the Tank Blanket Heaters in the water system?

<p>To cover most of the inboard and outboard surfaces of the tanks to prevent freezing.</p> Signup and view all the answers

What is the power supply/control for the air compressor?

<p>115V AC, 400 Hz, 3-phase power from the aircraft Main AC bus</p> Signup and view all the answers

What is the voltage range used to power the fill port heaters?

<p>22 to 28.5V DC</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser