ASM CDC STQs

What is the largest depth of flange you can make on a bar folder?

1 inch.

What is the largest flange (depth) that you can form on a cornice brake?

Unlimited.

How many degrees must you add on to allow for springback when using a cornice brake?

3 degrees.

How can you check to ensure the bending leaf is not bowed?

Use a straightedge.

What shapes may be formed with the slip roll former?

Cylinders/permanent curves.

Which roller of the slip roll former is moved to decrease the radius of forming?

The lower rear roller.

What happens to the flange when the movements of the jaws on a shrinking and stretching machine move inward?

The flange shrinks.

What direction do the jaws move on a shrinking and stretching machine when stretching metal?

Down and outward.

When pressing an anti-friction bearing, where on the bearing should you place the ram?

Squarely on the face.

When forming aluminum what type of hardwood material is recommended for fabricating form blocks?

Ash and maple.

What type of forming blocks do you select if you want to form a piece of metal by crimping?

Shrinking blocks.

What is usually used for support during the forming process of bumping?

Sandbags.

Name the correct stake to be used for the following operation: riveting pipes and elbows.

Conductor

Name the correct stake to be used for the following operation: support when laying down double seams on small cylindrical objects.

Double-seaming (simple).

Name the correct stake to be used for the following operation: tube forming.

Candlemold

Name the correct stake to be used for the following operation: forming irregularly shaped objects.

Roundhead

Name the correct stake to be used for the following operation: making straight line bends.

Hatchet

If you are using a V-block to shrink a flange, in what direction do you point the flange to be shrunk?

Upward

Where do you position additional crimps when you're performing a second crimping process to complete a crimping job?

Between original crimps.

If you form a flanged angle with the flange pointed toward the inside of the bend, what must you do to the metal on the flange?

Shrink it.

What type of blocks do you use when flanging angles?

Wooden form blocks.

Where do you start hammering when forming a flanged angle by shrinking?

Near the center.

What must you do to the metal to form concave flanges?

Stretch it

What must you do to the metal to form convex flanges?

Shrink it

What's used to keep the metal being formed from shifting within the form blocks during the forming operation?

Alignment pins

Where do you start hammering when you're forming curved convex flanges?

At the center.

The finish dimension of a die used for bumping should be the same as what dimension of the part being formed?

The outside dimension.

How much metal should you allow for drawing when forming by bumping dies?

1/2 to 1 inch

Where should you start hammering when using die blocks?

Near the edges.

What grit of sandpaper is used when removing oxidation from bare metal equipment surfaces?

400 grit sandpaper

What form is used to document equipment maintenance?

AFTO Form 244

What section of the Industrial/Support Equipment Record documents scheduled inspections?

III

What symbols are used to document equipment discrepancies on the Industrial/Support Equipment Record?

Red X, dash (-), diagonal (/).

If you must form concave shapes in soft metal, which type of hammer do you use for best results?

Stretching.

What type and size of hammer do you use to center punch holes for drilling?

8-ounce ballpeen.

What type of hammering tool is selected for finishing purposes?

Mallets.

What type punch is used to establish location points when laying out patterns on sheet stock?

Prick punch.

What is another name for a drift punch?

Taper punch.

Which punch is used to remove rivet shanks from drilled holes?

Pin punch.

What two functions can be performed with a steel rule?

Measurement & Straightedge.

What must you do before measuring anything with the depth gauge?

Zero the gauge.

If you must cut out a triangle from a thin piece of metal, which type of snips gives you the best results?

Straight.

Which type of snip can you sharpen when it becomes dull?

Straight.

If you must enlarge a small hole in a piece of metal, which type of snips do you use?

Aviation snips.

If you are using the upper blade as a guide during a cutting operation, what kind of snips are you probably using?

Aviation.

What type of file cut do you use to sharpen shears or snip blades?

Single.

What type of file is best suited for common filing operations?

Flat.

What type of file is used for filing cutters and taps?

Triangle.

Which stroke (forward or backward) is the cutting stroke?

Forward.

What type of lever shear is used to make cuts on the inside of a sheet of metal?

Scroll.

If you must remove a damaged section of a stringer, which type of power-operated saw do you select?

Ketts circle.

For cutting square or rectangular cutouts, which type of saw should you select?

Reciprocating.

What type of safety equipment must be used when operating a contour metal cutting saw?

Goggles/face shield.

If you must grind cast-iron materials, which type of grinding wheel is recommended?

Silicon carbide.

Which type of grinding wheel do you select if the part being ground requires a highly polished surface?

Rubber-bonded.

When you have completed the dressing operation, how far from the grinding wheel should you adjust the tool rest?

1⁄8 inch (maximum).

What should you do to cracked grinding wheels?

Discard them.

What safety equipment must be worn when using a grinding wheel?

Goggles.

What safety device is used when operating any type of drilling equipment?

Eye protection.

What part of a twist drill does the actual cutting?

The lips.

What is sometimes called the backbone of a twist drill?

The web

Which type of reamer is the most practical for general use?

Expansion.

Each increment on a stop countersink represents how many thousandths of an inch?

0.001.

What is the average weight of bucking bars?

3 pounds.

If after installing a countersunk rivet, the head sticks up 0.010 inch above the surface, how much of the head can you remove without damaging the surface?

0.008 inch.

What is the largest depth of flange you can make on a bar folder?

1 inch

Which type of line is the basis for comparing the weights of all other lines?

Visible outline

What type of line is represented by a series of short uniform dashes?

Invisible outline

What type of line consists of lightweight alternating long and short dashes with a long dash on each end?

center line

What are the three general groups of dimensions?

Overall, position, detail

What type of view is used to show the true measurement and appearance of an inclined surface?

Auxiliary

How many views of an object are usually shown on a projection drawing?

Three

What views of a box are shown in an orthographic projection?

top, front, side

Often, isometric drawings are used with what other type drawings?

Orthographic

What objects are best presented by oblique drawings?

Objects with irregular/outlines.

What property of metal permits it to be hammered into various shapes without breaking?

Malleability

What property of metal allows it to return to its original shape after a load is removed?

Elasticity

What's the basic selection factor when selecting a particular metal for a given repair situation?

Strength/weight ratio

If the only concern in joining one piece of metal to another is strength, which is the best method of attachment?

Welding

Which type of stress can be transferred across the plugged area if a tightly fitted plug is inserted in a drilled member?

Compression.

Shear stresses are applied in which direction?

Sideways (lateral).

How can the tensile strength of commercially pure aluminum be increased without alloying?

By cold-working.

What is the best method to join aluminum?

Riveting process.

What alloying element increases the possibility of corrosion in aluminum?

Copper

What are the two typed of wrought aluminum sheet stock?

(1) Heat-treatable

(2) Nonheat-treatable

The amount of Alclad coating on wrought aluminum sheets depends on what factor?

The sheet thickness.

What information should you include when re-marking unused metal?

Alloy, temper, thickness.

A uniform numbering system is used for identifying aluminum and aluminum alloys. Using the number 5052-O, .063 as an example, what kind of information is given by the following part of the identifier?

5052

5052

Alloy number

A uniform numbering system is used for identifying aluminum and aluminum alloys. Using the number 5052-O, .063 as an example, what kind of information is given by the following part of the identifier?

-O

-O

Temper indicator

A uniform numbering system is used for identifying aluminum and aluminum alloys. Using the number 5052-O, .063 as an example, what kind of information is given by the following part of the identifier?

.063

.063

Thickness

What does the first number of the four-digit index system used for aluminum indicate?

Major alloying element

Which aluminum tempering process is indicated by the temper designator H?

Strain-hardened

Which aluminum alloy is used in the fabrication of most aircraft rivets?

2017

Which heat-treatable aluminum alloy offers the best results for welding?

6061

Which nonheat-treatable aluminum alloy has the highest strength?

5052

When drilling aluminum alloys what spiral angle for twist drills provides good results?

47 degrees

Why type of blade set is recommended for cutting aluminum alloys with a hacksaw?

Wavy

If titanium gives excellent results when used for aircraft parts, why isn't it used more widely?

Because of the high cost.

What TO has information on the designations and identifications of titanium?

1-1A-9

What tests are used to differentiate titanium from stainless steel?

Spark and glass.