2A651: Aircraft Jet Engine Maintenance! Trivia Quiz
Are you studying for the 2a651: Aircraft Jet Engine Maintenance exam and are looking for a quiz to refresh your understanding? The quiz below is actually perfect for that as it combines past test papers. Are you feeling up to the task and think you would perform rather well? Do take up the quiz and see how good you would do. All the best!
- 1.
Carrying a hand tool in your pocket is potentially hazardous because it could cause
- A.
Electrical shock.
- B.
Torn clothing.
- C.
Injury to you.
- D.
Damage to the tool.
Correct Answer
C. Injury to you. -
- 2.
What would you use to hold your tools when you cannot locate your toolbox within arm's reach?
- A.
Ziplock bag.
- B.
Toolbag.
- C.
FOD bag.
- D.
Parts bag.
Correct Answer
B. Toolbag. -
- 3.
If you must torque a sequence of three or more bolts,
- A.
Use maximum torque.
- B.
Use a staggered sequence.
- C.
Torque from left to right.
- D.
Overtorque,lossen,and retorque.
Correct Answer
B. Use a staggered sequence. -
- 4.
The lenght of a torque extension is determined by the distance between the center of the square drive and the center of the
- A.
Lock.
- B.
Grip.
- C.
Shaft index line.
- D.
Broached opening.
Correct Answer
D. Broached opening. -
- 5.
What type of rule should you use for measuring an inside diameter?
- A.
Slide caliper.
- B.
6-inch steel.
- C.
Narrow.
- D.
Hook.
Correct Answer
A. Slide caliper. -
- 6.
Micrometers are generally used to make measurements to an accuracy of
- A.
One sixteenth of an inch.
- B.
One one-hundredth of an inch.
- C.
One one-thousandth of an inch.
- D.
One ten-thousandth of an inch.
Correct Answer
D. One ten-thousandth of an inch. -
- 7.
The longest calibrated movement between the spindle and anvil of an outside micrometer is
- A.
1 inch.
- B.
2 inches.
- C.
3 inches.
- D.
4 inches.
Correct Answer
A. 1 inch. -
- 8.
You adjust a micrometer by turning the
- A.
Barrel.
- B.
Spindle.
- C.
Frame.
- D.
Thimble.
Correct Answer
D. Thimble. -
- 9.
The vernier scale on a micrometer is used to read measurements in
- A.
Hundredths of an inch.
- B.
Thousandths of an inch.
- C.
Ten-thousandths of an inch.
- D.
Hundred thousandths of an inch.
Correct Answer
C. Ten-thousandths of an inch. -
- 10.
Where is the contact point on a dial indicator located?
- A.
On the dial face.
- B.
At the end of the anvil.
- C.
At the end of the thimble.
- D.
At the end of a pivoted lever.
Correct Answer
D. At the end of a pivoted lever. -
- 11.
What feature is common to all dial indicators?
- A.
Construction of indicator.
- B.
Construction of indicating hand.
- C.
Ability to amplify movement greatly.
- D.
Ability to amplify movement slightly.
Correct Answer
C. Ability to amplify movement greatly. -
- 12.
To avoid rust,Measuring tools should never be stored where the relative humidity exceeds what percentage?
- A.
10.
- B.
20.
- C.
40.
- D.
50.
Correct Answer
D. 50. -
- 13.
What should you use for cleaning measuring tools?
- A.
WD-40.
- B.
Trychlorethlene.
- C.
Turbo-super-carb.
- D.
Dry-cleaning solvent.
Correct Answer
D. Dry-cleaning solvent. -
- 14.
The Fluke 8025A multimeter control that is used to set the meter to check for AC and DC is the
- A.
Function selector.
- B.
Range-mode pushbutton switch.
- C.
Touch-hold pushbutton switch.
- D.
Volts,ohms,diode test input jack.
Correct Answer
A. Function selector. -
- 15.
How many range settings does the Fluke 8025A multimeter have?
- A.
2.
- B.
3.
- C.
4.
- D.
5.
Correct Answer
C. 4. -
- 16.
What is the maximum voltage that can be measured if the range button is set at 30 on Fluke 8025A multimeter?
- A.
28.
- B.
30.
- C.
32.
- D.
34.
Correct Answer
C. 32. -
- 17.
What is the purpose of a borescope inspection on an engine?
- A.
Replace a teardown inspection.
- B.
Visually inspect internal cavities.
- C.
Detect major damage inside the engine.
- D.
Determine how much maintenance is required during a periodic inspection.
Correct Answer
B. Visually inspect internal cavities. -
- 18.
Light is transmitted to the tip of a borescope by
- A.
The fiber optics.
- B.
An optical illusion bundle.
- C.
A grounded extension cord.
- D.
A directly magnified light source.
Correct Answer
A. The fiber optics. -
- 19.
What are the type(s) of view(s) available with the rigid borescope?
- A.
Direct.
- B.
Axisymetrical.
- C.
Direct and lateral.
- D.
60 degrees up and 180 degrees down.
Correct Answer
C. Direct and lateral. -
- 20.
When operating a borescope,what part of the borescope illuminates the interior of the area you are inspecting?
- A.
Light guid tube.
- B.
Control unit.
- C.
Distal tip light guides.
- D.
Bending section lever.
Correct Answer
C. Distal tip light guides. -
- 21.
The type of borescope that uses miniature TV camera images is a
- A.
Videoimagescope.
- B.
Riged borescope.
- C.
Flexible scope.
- D.
Fibrescope
Correct Answer
A. Videoimagescope. -
- 22.
Which factor is not considered for borescope operator certification?
- A.
Age.
- B.
Rank.
- C.
Maturity.
- D.
Experience.
Correct Answer
A. Age. -
- 23.
Proper bolt length allows a minimum of how many threads protruding the nut?
- A.
1.
- B.
2.
- C.
3.
- D.
4.
Correct Answer
B. 2. -
- 24.
The grip length of a bolt should be a few thousandths of an inch shorter than the material it is holding to
- A.
Allow for the installation of a washer.
- B.
Keep the nut from backing loose.
- C.
Allow for expansion of the metal.
- D.
Avoid bottoming out the nut.
Correct Answer
D. Avoid bottoming out the nut. -
- 25.
What type of bolt is used primarily in high-tension applications?
- A.
Clevis.
- B.
Hex head.
- C.
Special purpose.
- D.
Internal wrenching.
Correct Answer
D. Internal wrenching. -
- 26.
Which nuts should never be used in areas where the temprature exceeds 250 F
- A.
Plain nuts.
- B.
Wing nuts.
- C.
Metallic self-locking nuts.
- D.
Nonmetallic self-locking nuts.
Correct Answer
D. Nonmetallic self-locking nuts. -
- 27.
How is a screw length measured?
- A.
Thread length of the treads.
- B.
Base of the head to the bottom of the threads
- C.
Length of the shank plus the threaded portion.
- D.
Top of the head to the bottom of the screw threads.
Correct Answer
D. Top of the head to the bottom of the screw threads. -
- 28.
When installing a self-taping screw, the hole must be
- A.
Slightly smaller than the screw.
- B.
The same size as the screw shank.
- C.
Slightly deeper than the length of the shank.
- D.
Slightly shallower than the lenght
Correct Answer
A. Slightly smaller than the screw. -
- 29.
What type of washer is used to prevent corrosion of dissimlar metals?
- A.
Plain.
- B.
Lock.
- C.
Star.
- D.
Tab.
Correct Answer
A. Plain. -
- 30.
To prevent damage to the soft metal surfaces and a lock washer is required,what should you use?
- A.
Plain washer underneath the lock washer.
- B.
Soft lock washer.
- C.
Special washer.
- D.
Crush washer.
Correct Answer
A. Plain washer underneath the lock washer. -
- 31.
What type of pin is used in joints that carry shear loads and where the absence of clearance is essential?
- A.
Tapered.
- B.
Flathead.
- C.
Cotter.
- D.
Shear.
Correct Answer
A. Tapered. -
- 32.
When lockwiring,how many twists per inch are required to produce the proper stiffness?
- A.
6 to 8.
- B.
8 to 10.
- C.
10 to 12.
- D.
12 to 14.
Correct Answer
B. 8 to 10. -
- 33.
Copper tubing is not used on jet engines because it
- A.
Is expensive.
- B.
Is too flexible.
- C.
Has a high-fatigue factor.
- D.
Has extremely high tensile strength.
Correct Answer
C. Has a high-fatigue factor. -
- 34.
You can identify the various systems lines used to transfer fluids and gases on the jet engines by
- A.
Their international orange color.
- B.
The different colors of the tubing or hoses.
- C.
The specifications embossed on the tubing or hoses.
- D.
The coded bands of colored tape placed around the tubing or hoses.
Correct Answer
D. The coded bands of colored tape placed around the tubing or hoses. -
- 35.
What numerical value is given to a fitting used on tubing that measures 3/8 inch?
- A.
2.
- B.
4.
- C.
6.
- D.
8.
Correct Answer
C. 6. -
- 36.
Why should dust caps be installed over tub ends rather inside them?
- A.
Provides a tighter fit.
- B.
Prevents nicking of inner tube surface.
- C.
Avoids possibility of leaving caps installed.
- D.
Provides less contact with corrosive lubricants.
Correct Answer
C. Avoids possibility of leaving caps installed. -
- 37.
For a straight piece of tubing to remain serviceable, a dent must be less than what percentage of the tubing diameter?
- A.
20.
- B.
25.
- C.
30
- D.
35r
Correct Answer
A. 20. -
- 38.
What type of hoses should you never use oil as an aid to installing?
- A.
Hydraulic.
- B.
Pneumatic.
- C.
Self-sealing.
- D.
High-pressure.
Correct Answer
C. Self-sealing. -
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Current Version
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Mar 21, 2022Quiz Edited by
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Nov 10, 2010Quiz Created by
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