Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how



What is meant by pressure cooling of an aircraft engine? Air cooling in which air is forced to flow through baffles and cylinder fins by a pressure differential across the engine.
What is the purpose of an augmentor tube in the cooling system of an aircraft reciprocating engine? The augmentor tube uses the velocity of the exhaust gases to produce a low pressure on one side of the engine that helps pull cooling air through it.
Where is the highest temperature located in a turbine engine? At the inlet to the high-pressure turbine.
How are the turbine inlet guide vanes and the first-stage turbine blades in some turbine engines cooled? High-pressure compressor bleed air flows through the hollow guide vanes and hollow turbine blades.
Which side of an air-cooled engine cylinder has the greatest amount of cooling fins? The side of the cylinder in which the exhaust valve is located.
What should be done to repair a bent cooling fin in a cast aluminum cylinder head? It is normally best to leave a bent cast fin alone if it does not restrict the flow of air. Cast fins are brittle and could break off.
What is used in a helicopter to increase the amount of cooling air that flows over the engine cylinders? A belt-driven fan.
What should be the position of the cowl flaps on a reciprocating engine when it is run on the ground? They should be wide open when operating the engine on the ground.
What is the function of the majority of the air that passes through a turbine engine? Most of the air is used for cooling.
How does metallic sodium in an exhaust valve aid in transferring heat? The sodium melts when the engine is running, and it sloshes up and down as the valve operates. The sodium picks up heat from the valve head and carries it into the stem so it can be transferred to the cylinder head and dissipated into the air.
How is the structure around a turbine engine protected from excessive heat from the engine? An insulating blanket protects the structure from excessive heat.
What is the function of blast tubes that are installed in a pressure cooling system of a reciprocating engine? These blast tubes direct cooling air to the magnetos and the generator.
Of what material is the insulation blanket made that is used to protect the aircraft structure from the heat produced by a turbine engine? Fiberglass sandwiched between sheets of metal foil.
Created by: Aima2019
Popular Aviation sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards