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

AIRFRAME ORALS

CHAPTER 13 - AIRFRAME ICE AND RAIN CONTROL

QuestionAnswer
WHAT CONTROLS THE TEMPERATURE IN A THERMAL ANTI-ICING SYSTEM ? HOT AND COLD AIR ARE MIXED.
WHAT ARE THE SOURCES OF HEAT FOR THERMAL ANTI-ICING SYSTEMS? BLEED AIR FROM THE COMPRESSOR SECTION OF A TURBINE ENGINE, ENGINE EXHAUST HEAT EXCHANGERS AND COMBUSTION HEATERS.
WHAT PREVENTS OVERHEATING OF THE LEADING EDGES OF A THERMAL ANTI-ICE SYSTEM OPERATED BY ENGINE BLEED AIR? OVERHEAT SENSORS SIGNAL THE ANTI-ICING VALVES TO CLOSE AND SHUT OFF THE HOT AIR.
WHAT HAPPENS TO THE HOT AIR USED BY A THERMAL ANTI-ICE SYSTEM AFTER IT HAS HEATED THE SURFACE? THE AIR IS DUMPED (EXHAUSTED) OVERBOARD.
WHY IS IT NECESSARY TO PROVIDE OVERHEAT PROTECTION FOR ANTI-ICING SYSTEMS THAT USE TURBINE ENGINE BLEED AIR? THE AIR IS HOT ENOUGH TO CAUSE DAMAGE TO THE AIRCRAFT STRUCTURE.
WHAT ARE THE EFFECTS OF ARCING ON AN ELECTRICALLY HEATED WINDSHIELD? LOCALIZED OVERHEATING AND DAMAGE TO THE WINDSHIELD.
CAN THE OPERATION OF AN ELECTRICALLY HEATED PITOT-TUBE BE CHECKED WITH THE AIRCRAFT'S AMMETER? YES, TURN THE PITOT HEATER ON AND OBSERVE THE DEFLECTION OF THE AMMETER NEEDLE.
DESCRIBE SEVERAL POTENTIAL PROBLEMS ASSOCIATED WITH ELECTRICALLY HEATED WINDSHIELDS. ARCING, DELAMINATION, SCRATCHES, AND DISCOLORATION.
WHY DO SOME PNEUMATIC DEICER BOOT SYSTEMS HAVE AN ELECTRICALLY OPERATED TIMER? TO AUTOMATICALLY CYCLE THE BOOTS, PROVIDE THE PROPER REST TIME, AND THEN RECYCLE THE BOOTS.
WHAT ARE THE TWO COMMON METHODS OF INFLATING PNEUMATIC DEICER BOOTS? BLEED AIR FROM A TURBINE ENGINE OR THE EXHAUST FROM AN ENGINE-DRIVEN VACUUM PUMP.
WHAT PROCEDURE IS USED TO HOLD DEICER BOOTS FLAT WITH THE AIRFOIL SURFACE DURING FLIGHT? SUCTION IS APPLIED TO THE BOOTS.
WHY DO SOME DEICER BOOT SYSTEMS INCORPORATE AN OIL SEPARATOR? IF A WET PUMP SYSTEMS IS USED, THE OIL MUST BE REMOVED BEFORE IT REACHES THE BOOTS BECAUSE OIL DAMAGES THE RUBBER.
WHAT METHODS ARE USED TO ATTACH A DEICER BOOT TO THE LEADING EDGES OF THE WING AND TAIL SURFACES? ADHESIVES, FAIRING STRIPS AND SCREWS, OR A COMBINATION OF BOTH.
WHAT IMPORTANT STEP SHOULD BE TAKEN PRIOR TO MAKING A COLD-PATCH REPAIR TO A DEICER BOOT? CONSULT THE MANUFACTURER'S SERVICE MANUAL AND FOLLOW THE REPAIR INSTRUCTIONS EXPLICITLY.
DESCRIBE THE METHODS COMMONLY USED TO REMOVE RAIN FROM A WINDSHIELS. WINDSHIELD WIPERS, A BLAST OF AIR, OR CHEMICAL RAIN REPELLANT.
WHAT POWER SOURCES ARE USED TO OPERATE WINDSHIELD WIPERS? ELECTRICITY OR HYDRAULIC PRESSURE.
NAME TWO PROBLEMS ASSOCIATED WITH IN-FLIGHT OPERATION OF AIRCRAFT WINDSHIELD WIPERS. INSUFFICIENT BLADE PRESSURE CAUSED BY AERODYNAMIC FORCES AND FAILURE TO OSCILLATE FAST ENOUGH.
DESCRIBE THE OPERATION OF A PNEUMATIC RAIN REMOVAL SYSTEM. A HIGH VELOCITY AIR BLAST PREVENTS THE RAIN FROM REACHING THE SURFACE OF THE WINDSHIELD.
WHAT ARE THE EFFECTS OF SPRAYING RAIN REPELLANT ON A DRY WINDSHIELD? IT SMEARS AND STREAKS, WHICH REDUCES VISIBILITY, AND IT IS HARD TO REMOVE WHEN DRY.
WHERE WOULD YOU FIND INFORMATION ON THE ACCEPTABLE LIMITS OF WINDSHIELD DELAMINATION ? IN REFERENCE MATERIAL PROVIDED BY THE MANUFACTURER.
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