Air ForceComprehensive Study Set

2A7X1 Air Force

100 questions across 0 topics. Use the find bar or section chips to jump to what you need.

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QUESTION 1

Good housekeeping is the responsibility of

ANSWER

all shop personnel

QUESTION 2

The lowest temperature at which combustible vapors will ignite is known as the

ANSWER

flash point

QUESTION 3

If you're working with a solvent that has been agitated, what should you do?

ANSWER

Provide adequate ventilation

QUESTION 4

Who must provide written permission to allow storage of flammable liquids inside Air Force shops?

ANSWER

Base fire marshal

QUESTION 5

When performing a safety inspection in your shop, it is important to

ANSWER

look at things in an unbiased manner

QUESTION 6

What is the primary protective item used while welding?

ANSWER

Welding helmet

QUESTION 7

What protective item must an operator wear while running a grinder?

ANSWER

Face shield

QUESTION 8

To reduce the risk of electrical shock before you begin any welding operation, always ensure proper

ANSWER

machine ground

QUESTION 9

To ensure you have the correct amount of protection before welding, you should always inspect your helmet

ANSWER

filter lens

QUESTION 10

To prevent breathing dust or shavings when you're performing machining operations on beryllium or titanium, use

ANSWER

a particle mask

QUESTION 11

To prevent the risk of oxygen deficiency and suffocation in the work area when working with liquid nitrogen, always

ANSWER

properly vent the work area

QUESTION 12

What is the minimum safe operating distance from the engine intake of an aircraft with a running engine?

ANSWER

25 feet from the front and 5 feet from the side

QUESTION 13

What is the minimum safe operating distance in feet for a vehicle to drive from behind the exhaust of any aircraft with running engines?

ANSWER

200 ft

QUESTION 14

To prevent injury while performing maintenance on an aircraft control surface, you should

ANSWER

install safety locks or pins

QUESTION 15

To prevent accidents while performing maintenance from an approved aircraft maintenance stand, what items should you check?

ANSWER

Guard rails, safety pins, and wheel locks

QUESTION 16

Before you begin any maintenance on an aircraft,

ANSWER

check the aircraft forms

QUESTION 17

What symbol do you enter on the Air Force Technical Order (AFTO) Form 781A, Maintenance Discrepancy and Work Document, if you discovered a condition on an aircraft that makes it unfit for flight?

ANSWER

RED X

QUESTION 18

After maintenance on a RED X aircraft discrepancy is complete, the individual to sign off the RED X symbol is the

ANSWER

inspector that checked the completed work

QUESTION 19

What symbol do you enter on the Air Force Technical Order (AFTO) Form 781A, Maintenance Discrepancy and Work Document, if you discovered a condition on an aircraft that may affect flying safety but is not urgent enough to ground the aircraft?

ANSWER

RED /

QUESTION 20

What symbol do you enter on the Air Force Technical Order (AFTO) Form 781A, Maintenance Discrepancy and Work Document, if you discovered an unknown condition that requires inspection?

ANSWER

RED -

QUESTION 21

How many discrepancy entries can you make, per block, on Air Force Technical Order (AFTO) Form 781A, Maintenance Discrepancy and Work Document?

ANSWER

1

QUESTION 22

The Air Force Technical Order (AFTO) Form 244, Industrial/Support Equipment Record, conveys the

ANSWER

current status of the equipment

QUESTION 23

What item does not require an Air Force Technical Order (AFTO) Form 244, Industrial/Support Equipment Record?

ANSWER

Common and special hand tools

QUESTION 24

What section of the Air Force Technical Order (AFTO) Form 244, Industrial/Support Equipment Record, contains the support equipment (SE) service inspections, as well as the prior to use inspection documentation?

ANSWER

Part II

QUESTION 25

If you notice the fiberglass handle on your hammer is split, you should

ANSWER

replace the hammer

QUESTION 26

Which type of punch would you use to make center marks for drilling?

ANSWER

Center

QUESTION 27

For a hard-to-reach wrenching job, hold the pliers

ANSWER

tightly near the handle end for leverage

QUESTION 28

When using a handheld disk sander, approximately what angle should you maintain between the sanding disk and workpiece surface?

ANSWER

15 degrees

QUESTION 29

What is the proper pressure for cutting with a portable band saw?

ANSWER

The weight of the portable band saw

QUESTION 30

Two common types of surface plates are made of

ANSWER

cast iron and granite

QUESTION 31

What feature prevents cast iron surface plates from rocking on uneven surfaces?

ANSWER

Three legs

QUESTION 32

What material is recommended for the daily cleaning of granite surface plates?

ANSWER

Waterless cleaner

QUESTION 33

When properly stacking blocks together through wringing, precision gage blocks adhere to each other because of a

ANSWER

combination of molecular attraction and the cementing action of the oily film

QUESTION 34

What tool can you use if you find the vernier caliper too awkward to handle while trying to take a measurement?

ANSWER

Telescoping gage

QUESTION 35

What is the correct way to operate the telescoping gage when using it to gage a hole?

ANSWER

Set the gage in the hole, then slowly expand the plungers fully in the hole for measurement

QUESTION 36

Which gage is actually a group of steel blades that can be used individually or together to measure clearance?

ANSWER

Thickness gage

QUESTION 37

Each graduation on the thimble of an outside micrometer represents

ANSWER

0.001 inch

QUESTION 38

Before closing an outside micrometer

ANSWER

clean the thimble and anvil

QUESTION 39

Mounting extension rods on both ends of the inside micrometer increases its range to

ANSWER

12 inches

QUESTION 40

To obtain the correct diameter measurement of a hole when using an inside micrometer, you must add to the actual micrometer reading the length of the

ANSWER

body and extension rod

QUESTION 41

On an internal micrometer, how many points are used in its measuring contact system to facilitate obtaining very reliable readings?

ANSWER

Three

QUESTION 42

What is one advantage of using a vernier caliper?

ANSWER

One vernier caliper can replace several sets of micrometers

QUESTION 43

On vernier calipers, what is the maximum deviation of parallelism permitted?

ANSWER

0.0005 inch

QUESTION 44

What do you use to remove oil and grit from vernier calipers?

ANSWER

Dry-cleaning solvent

QUESTION 45

The vernier bevel protractor accurately divides a degree into segments of

ANSWER

5 minutes

QUESTION 46

When you center a part on a lathe with a dial indicator

ANSWER

back the indicator away, and then tap the work in the required distance

QUESTION 47

When using a coaxial dial indicator in the spindle of a milling machine

ANSWER

run the machine at 500 to 600 revolutions per minute

QUESTION 48

Which hacksaw blade do you use to saw hollow shapes and metals of light cross section?

ANSWER

Flexible

QUESTION 49

If you had to cut a very thin piece of material with a hacksaw, what could you do to keep the saw from chattering?

ANSWER

Clamp thin stock between two wood scraps

QUESTION 50

The cut of a file refers to the

ANSWER

coarseness and type of cut

QUESTION 51

Which file would you select if you had to repair damaged threads

ANSWER

Three-square

QUESTION 52

If you are going to use a taper pin reamer for a hole, what is the proper size of the rough hole?

ANSWER

0.002 to 0.015 inch smaller than the reamer

QUESTION 53

Which tool would allow you to shear or cut a square shape from a machined surface?

ANSWER

Broach

QUESTION 54

What is the first tap you would use when cutting threads in a blind hole?

ANSWER

Taper

QUESTION 55

On a tap, what does the marking "LH" after the thread series indicate?

ANSWER

The tap is left-handed

QUESTION 56

In preparing a hole for tapping, chamfer the hole to a diameter

ANSWER

equal to the thread major diameter

QUESTION 57

How would you check a tap for squareness after you have started it in the hole?

ANSWER

Use a square to check the tap and part surface at points that are 90° from each other

QUESTION 58

To remove a broken tap with at least ¼ inch of the tap protruding above the parent metal, first

ANSWER

use a scribe to pick the metal chips out of the hole

QUESTION 59

What is the difference between the starting and trailing sides of a die?

ANSWER

The starting side has three tapered threads; the trailing side has one tapered thread

QUESTION 60

What is the least common denominator (LCD) of 1/8, 5/16, and 3/4?

ANSWER

16

QUESTION 61

What type of fraction has one or both of its terms expressed as a fraction or mixed number?

ANSWER

Complex

QUESTION 62

The number 6/5 over 9 is an example of

ANSWER

a complex fraction

QUESTION 63

Reduce the improper fraction 8/6 to a mixed number:

ANSWER

1 - 1/3

QUESTION 64

What is the result when the fraction 1/8 is subtracted from the sum of the fractions 3/4 and 5/32?

ANSWER

25/32

QUESTION 65

The fraction 6/10 is expressed as a decimal by the number

ANSWER

.600

QUESTION 66

An 18-inch gear meshes with a 6-inch gear. If the large gear has 72 teeth, how many teeth does the small gear have?

ANSWER

24

QUESTION 67

You have completed a manufacture of 35 laminated shims. Of the 35 shims, seven are out of tolerance and must be scrapped. What is the percentage of scrapped parts?

ANSWER

20 percent

QUESTION 68

The Pythagorean Theorem bases its law on the fact that the square of the length of the hypotenuse of a right triangle is equal to the

ANSWER

sum of the squares of the other two sides

QUESTION 69

Using the Pythagorean Theorem, find the length of the hypotenuse (side c) of a triangle where side a = 3 inches and side b = 4 inches

ANSWER

5 inches

QUESTION 70

If the line rotates counterclockwise from the initial line, it creates a

ANSWER

positive angle

QUESTION 71

If the line rotates clockwise from the initial line, it creates a

ANSWER

negative angle

QUESTION 72

The position of the line at the start of an angle is known as the

ANSWER

initial line

QUESTION 73

Trigonometric functions are the numerical values of the angles and sides of

ANSWER

right triangles calculated by ratios between the sides and acute angles

QUESTION 74

Which side of a right triangle is the longest?

ANSWER

Hypotenuse

QUESTION 75

The three items you must know in order to determine the values of the rest of the angles and sides of a right triangle are: the function, the definition, and the

ANSWER

length of one side

QUESTION 76

The sine of an angle in a right triangle equals the

ANSWER

opposite side divided by the hypotenuse

QUESTION 77

The cosine of an angle in a right triangle equals the

ANSWER

adjacent side divided by the hypotenuse

QUESTION 78

The tangent of an angle in a right triangle equals the

ANSWER

opposite side divided by the adjacent side

QUESTION 79

When using a trigonometric table, like the table in the Machinery's Handbook, it's important to remember that all of the angles of a right triangle fall within what range?

ANSWER

0 to 90 degrees

QUESTION 80

You may be able to use a file and wrench to remove a broken bolt or stud, if

ANSWER

it is broken off above the surface of the parent metal

QUESTION 81

If you select an Easy-Out to remove a broken bolt or stud, drill

ANSWER

all the way through the bolt or stud

QUESTION 82

Before drilling off the head of a stuck screw

ANSWER

rotary file the screw slot to prevent the drill bit from catching and breaking

QUESTION 83

When drilling a screw out of a nutplate, it may be difficult to keep the drill centered because some

ANSWER

nutplates float or move around in their brackets

QUESTION 84

To remove a stripped screw with an Easy-Out, use a

ANSWER

T-handle tap wrench

QUESTION 85

When removing a broken spark plug, how many holes are provided in the face of a drill guide to permit drilling into the wall of the plug base?

ANSWER

Four

QUESTION 86

Which type of pin is used to keep parts in absolute alignment?

ANSWER

Taper

QUESTION 87

If you want to increase the shear strength of a spring or rolled pin,

ANSWER

insert one pin inside another

QUESTION 88

The biggest disadvantage to using solid inserts for repair is they

ANSWER

take up a large amount of space in the parent metal

QUESTION 89

The tool in the insert kit, providing a flat seating area for the lockring insert, is the

ANSWER

counterbore

QUESTION 90

The item on a lockring insert that provides a swaging action between the insert and the parent material is the

ANSWER

serrated teeth

QUESTION 91

When installing a lockring, its external teeth cut into the parent part and "swage" the lockring tight. To ensure it is properly installed, seat it below the parent metal surface by

ANSWER

0.005 - 0.010 inches

QUESTION 92

How many points must be on the internal wrenching surface of a Rosan slimsert in order for it to have self-locking threads?

ANSWER

6

QUESTION 93

After you install a Heli-Coil, remember to properly remove its drive tang by

ANSWER

using the breakoff tool

QUESTION 94

To remove a damaged Heli-Coil,

ANSWER

use the extractor

QUESTION 95

If you're going to drill out the pins on a pin insert, select a drill bit that's

ANSWER

one size under the pin diameter

QUESTION 96

To keep a bushing from binding when you press it into a hole, check

ANSWER

for the chamfered edge on the parent part

QUESTION 97

After you install a bushing, you may have to ream the inside diameter because

ANSWER

an interference fit causes bushings to contract slightly

QUESTION 98

Although staked bearings can withstand rotational loads, they cannot withstand

ANSWER

thrust loads

QUESTION 99

When double anvil swaging several bearings from the same lot, perform the operation using

ANSWER

the same load and tool for each swage

QUESTION 100

When performing a roller swaging operation, center the bearing in the housing and

ANSWER

make sure the bearing is square with the hole before you press it

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