Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

POWERPLANT ORALS

CHAPTER 4 - TURBINE ENGINE OPERATION, MAINTENANCE, INSPECTION, AND OVERHAUL

QuestionAnswer
WHY ARE COMPRESSOR WASHES PERFORMED AND WHAT METHODS ARE COMMONLY USED? TO REMOVE ANY CONTAMINANTS FROM THE COMPRESSOR SECTION AND IMPROVE ENGINE PERFORMANCE. THE FLUID WASH AND ABRASIVE GRIT WASH ARE COMMONLY USED.
HOW CAN YOU TELL IF A TURBOFAN OR TURBOJET ENGINE IS OUT OF TRIM? THERE WILL BE A HIGH EGT AT THE TARGET EPR FOR TAKEOFF POWER.
NAME THE DIFFERENT TYPES OF COMPRESSOR BLADE DAMAGE THAT MAY BE FOUND DURING INSPECTION. DENTS, CRACKS, GALLING, PITTING, SCRATCHES, BURRS, BURNS, GOUGES.
WHAT KIND OF MARKERS CAN BE USED TO MARK THE PARTS IN HOT AND COLD SECTIONS DURING REPAIR? LAYOUT DYE, FELT TIP MARKER, CHALK.
HOW DOES RELATIVE HUMIDITY AFFECT TURBINE ENGINES? NEGLIGIBLE EFFECT.
WHAT CRITERIA DETERMINES REPLACEMENT OF LIFE LIMITED TURBINE ENGINE COMPONENTS? CYCLES, HOURS AND/OR CALENDAR TIME.
IF TURBINE BLADES ARE REMOVED FROM A TURBINE DISC, WHY SHOULD THEY BE RE-INSTALLED IN THE SAME LOCATION? TO MAINTAIN THE BALANCE OF THE TURBINE WHEEL.
HOW ARE GAS TURBINE ENGINE TACHOMETERS CALIBRATED? THEY ARE CALIBRATED IN PERCENT R.P.M.
ON A TURBINE ENGINE, WHAT IS THE ENGINE PRESSURE RATIO AND WHAT DOES IT INDICATE? IT IS THE RATIO BETWEEN THE TOTAL INLET PRESSURE AND TOTAL TURBINE EXHAUST PRESSURE AND IS TO INDICATE THE THRUST DEVELOPED BY THE ENGINE.
ON A TURBINE ENGINE, WHAT DOES EGT INDICATE AND HOW IS IT OBTAINED? EGT IS THE AVERAGE TEMPERATURE OF THE TURBINE DISCHARGE GASSES AND IS OBTAINED BY THERMOCOUPLES PLACED NEAR THE TURBINE EXIT.
CAN THE EGT SYSTEM ON A TURBINE ENGINE BE CHECKED WITHOUT RUNNING THE ENGINE? YES, BY CHECKING THE RESISTANCE OF THE THERMOCOUPLES AND CIRCUITS.
Created by: brookburns34924
Popular Aviation sets

 



Voices

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:
Retries:
restart all cards