Ndi,welding, And Heat Treatment

Front 1

According to NA-01-1A-16, who can perform NDI inspections?

Back 1

Certified personnel only

Front 2

What type of examination must a candidate receive before selection as an NDI inspector and annually there after?

Back 2

Eye exam

Front 3

What is the minimum amount of experience required from a technician who is currently
certified and engaged in NDI in order to train and certify NDI operators?

Back 3

3 years

Front 4

How often must active NDI technicians
recertify?

Back 4

3 years

Front 5

How often must an NDI technician or
operator perform the methods in which they are certified?

Back 5

Two times a month

Front 6

How long must a NDI operator maintain
proficiency without being required to update training for recertification?

Back 6

6 months

Front 7

The original copy of the NDI certification is held by whom?

Back 7

The individual

Front 8

Who verifies the entries in the work center supervisor's Technician/Operator work record?

Back 8

QA

Front 9

What command has cognizance over the NDI program?

Back 9

Naval Air Systems Command (NAVAIR)

Front 10

What command provides training for all
NADEPs?

Back 10

Naval Air Systems Command (NAVAIR)

Front 11

Who is responsible for monitoring the NDI program in activities under their cognizance?

Back 11

Aircraft Controlling Custodians (ACC).

Front 12

What activity is responsible for ensuring compliance with qualification requirements and enforcing the Industrial Radiation Safety Program (RASP) requirements in accordance with the RASP manual?

Back 12

Intermediate Maintenance Activity (IMA).

Front 13

What division is responsible for monitoring the organization’s NDI training program?

Back 13

QA

Front 14

What activity is responsible for requesting NDI inspection on aircraft?

Back 14

Organizational Maintenance Activity (OMA).

Front 15

For a magnetic particle inspection to be performed, a part must be made of alloys that contain a high percentage of what material?

Back 15

Iron

Front 16

When conducting a magnetic particle inspection, the magnetic field is interrupted by what factor?

Back 16

Discontinuity

Front 17

Which method of magnetization is used to find radial discontinuities around the edges of holes and detect longitudinal discontinuities?

Back 17

Circular magnetization

Front 18

When you inspect hollow or tubelike parts, it is important to inspect what surface?

Back 18

Inside surface

Front 19

What type of current should be used for the detection of surface discontinuities?

Back 19

Alternating current (ac).

Front 20

To detect subsurface discontinuities, you would use direct current with what type of magnetic particle inspection?

Back 20

Wet magnetic particle method

Front 21

The particles that are used in magnetic
particle inspections have what two characteristics?

Back 21

High permeability and low retentivity

Front 22

The smallest particles are more easily
attracted to and held by what type of discontinuities?

Back 22

Very fine discontinuities

Front 23

Fluorescent particles are widely used in wet baths and are easily seen on dark backgrounds when what type of light is used?

Back 23

Black light

Front 24

What method of inspection is used to detect flaws in areas that are not accessible or favorably oriented for use by other test methods?

Back 24

Radiation (X-Ray).

Front 25

X-rays can be a health hazard when
improperly used because of what factor?

Back 25

They produce radiation

Front 26

What method of inspection uses vibration or sound waves?

Back 26

Ultrasonic inspection.

Front 27

What inspection method is used to detect discontinuities parallel to the test surface on materials one-half inch thick or greater?

Back 27

Straight-beam

Front 28

What is the best inspection method to use around fastener holes, cylindrical components, and welds?

Back 28

Angle-beam

Front 29

What ultrasonic method is used to detect surface cracks and subsurface discontinuities in field activities?

Back 29

Surface wave

Front 30

Electric currents that are induced in a conductor of electricity by a reaction with a magnetic field are known as what type of currents?

Back 30

Eddy currents

Front 31

What type of coil has the ability to better define the exact location of discontinuities?

Back 31

Surface coil

Front 32

A simple, inexpensive, and reliable method for detecting discontinuities that are open to the surface is known as what type of inspection?

Back 32

Dye penetrant

Front 33

Welding training and testing are conducted at what facilities?

Back 33

Naval Aviation Depot (NADEP)

Front 34

What is the recertification interval for
IMA-level aeronautical equipment welders if proficiency is maintained?

Back 34

3 years

Front 35

If you fail the first test weld(s), what amountof time do you have to submit the retest welds after notification of failure?

Back 35

30 days

Front 36

What are the two main purposes of the
welding torch?

Back 36

To properly mix the gasses and direct the flame against the part to be welded

Front 37

What is the temperature range of acetylene when mixed with oxygen?

Back 37

5,700 to 6,300°F

Front 38

What are the three main characteristics of oxygen?

Back 38

Odorless, colorless, and slightly heavier than air

Front 39

If an oxygen bottle has a white band around it, what type of oxygen does it contain?

Back 39

Breathing oxygen

Front 40

What pressure does the low pressure (0 to 500 psi) gauge on a single-stage regulator indicate?

Back 40

Working pressure

Front 41

Acetylene is colorless, but has what feature that makes it easily detected?

Back 41

A distinct odor

Front 42

At what pressure does acetylene become self-explosive?

Back 42

29.4 psi.

Front 43

What is another name for a low-pressure welding torch?

Back 43

Injector

Front 44

What color is the acetylene hose on an oxyacetylene welding system?

Back 44

Red

Front 45

The thread fittings for the oxygen hose
hookup of an oxyacetylene welding system always have what type of threads?

Back 45

Right-handed threads

Front 46

Regardless of the shade of your welding goggle's lens, they should be protected by what type of material?

Back 46

Clear cover glass

Front 47

Bronze and aluminum welding rods are
examples of what type of welding rods?

Back 47

Nonferrous

Front 48

What type of flame has three distinct zones and is used to weld nickel alloys?

Back 48

Carburizing flame

Front 49

What type of flame has a small, white pointed cone in the inner zone with a purple tinge and is used to fuse brass and bronze?

Back 49

Oxidizing flame

Front 50

An overheated welding tip, accompanied by a popping sound, indicates what action has occurred?

Back 50

Backfire

Front 51

Define the term “flashback” as it applies to a welding torch.

Back 51

Flashback is the burning of gases within the torch

Front 52

When the torch is held properly, the tip should be in line with what structure?

Back 52

The joint to be welded

Front 53

What welding technique is the best method for welding lighter metals?

Back 53

Forehand method

Front 54

Tee and lap joints are classified as what type of welds?

Back 54

Fillet welds

Front 55

Corner and butt joints are classified as what type of welds?

Back 55

Groove welds

Front 56

What type of joint is formed when two pieces of metal are placed edge-to-edge with no overlap and welded together?

Back 56

Butt joint

Front 57

What type of joint is formed when two pieces of metal are welded approximately perpendicular to each other?

Back 57

Tee joint

Front 58

What type of joint is formed by welding two overlapping metals together?

Back 58

Lap joint

Front 59

What type of joint is formed when two or moreparallel or nearly parallel pieces of metal are welded together?

Back 59

Edge joint

Front 60

What type of electrode is used in GTA welding because of its ability to resist high temperatures?

Back 60

Tungsten alloy

Front 61

DC reverse polarity in a welding machine causes a greater concentration of heat in what location?

Back 61

At the electrode

Front 62

Directional and distributional control of the shielding gas is provided by what
component?

Back 62

Gas cups.

Front 63

What is the most common type of shielding gas used in the tungsten-arc welding process?

Back 63

Argon

Front 64

When striking an arc, you should hold the electrode what distance above the work piece?

Back 64

1/8 inch

Front 65

The process that uses a consumable wire electrode is known as what type of welding?

Back 65

Gas Metal Arc (GMA).

Front 66

What determines the melting rate of the filler wire?

Back 66

Current level

Front 67

When you use the GMA welding method to weld aluminum, what is the preferred shielding gas?

Back 67

Helium

Front 68

When you use the GMA welding method, why should you pull the gun back quickly when contact is made between the electrode and the work piece?

Back 68

To prevent sticking

Front 69

If you hear a loud crackling sound while you are GMA welding, what direction should you move the wire-feed speed dial to correct this?

Back 69

Counterclockwise

Front 70

When using GMA welding equipment, where should you attach the ground connection?

Back 70

Ensure it is firmly attached to the work piece