NAVY AM MOD 3 FINAL EXAM ACTUAL QUESTIONS AND
ANSWERS SURE A+
✔✔squaring shear - ✔✔cuts heavy gage metal
squaring and multiple cutting
✔✔Stress Relieving - ✔✔Sharp corners in the cutout cause stress and eventually crack
the member, file and finish edges of the original panels and repair the parts. Must be
free of nicks and burrs to prevent cracking nicks.
✔✔Stake and stake plate - ✔✔Heavy metal forms, that back up metal when forming
different curves, angles, and seams.
✔✔Straight bend - ✔✔Lightly tap at end, working across to other end
✔✔Concave bend - ✔✔Lightly tap metal at end, working towards the center, stop at
center, do the same on other side, working towards the center.
✔✔Convex bend - ✔✔Glancing blows with mallet while using a backup block, working
from the center to both ends.
✔✔Cornice break - ✔✔Bends large sheets of metal of various thickness, that require a
specific thickness
✔✔Bar folder - ✔✔making bends or folds along edges
folds 1 inch wide
✔✔Slip roll former - ✔✔Forming sheet metal into curves and cylinders of various
diameters
✔✔Box and Pan Brake - ✔✔Making boxes and pans of various sizes.
✔✔rotary machine - ✔✔A bench-mounted machine with two removable rollers that
enable the mechanic to burr, turn, wire, bead, and crimp sheet metal
✔✔flanging dies - ✔✔Form a bend or flange in the center of a sheet of metal without
distortion
✔✔General purpose drill bits - ✔✔High speed steel, used for drilling soft steel
aluminum, and non metallic. Come in standard sizes.
✔✔Carbide-tipped drill bits - ✔✔Drill bits with carbide inserts mounted in cutting lips,
used for cars iron, and ferrous metals.
, ✔✔Degree of angle of tip on carbide tipped drill bit - ✔✔59
✔✔Ranges of Drill bit sizing in inches - ✔✔1/16 to 4 inches or larger.
✔✔Ranges of drill bit sizing in letter - ✔✔A to Z. A being the smallest.
✔✔A drill bit letter - ✔✔0.234
✔✔Z Drill bit letter - ✔✔0.413
✔✔Ranges of drill bit sizing in number - ✔✔No. 80 to No. 1. No. 80 being the smallest.
✔✔No. 80 brill bit number - ✔✔0.0135
✔✔No. 1 drill bit number - ✔✔0.228
✔✔Chuck - ✔✔Adjustable fitting with serrations around outer edge
✔✔Drill press - ✔✔Electrically powered, used for heavy duty and sensitive drilling.
✔✔Cleco Fasteners - ✔✔temporarily secure parts in position for drilling
✔✔Cleco Pliers - ✔✔used to remove and replace cleco fasteners
✔✔Edge distance - ✔✔The distance from the center of the rivet to the nearest edge of
the metal
✔✔countersunk edge distance - ✔✔min edge distance= 2 1/2 times D of rivet
max edge distance= 4 times D of rivet
✔✔Improper Edge Distance - ✔✔If rivets are too close to the edge, the sheet will crack
or pull away from rivets. If too far away, the sheet will turn up.
✔✔Countersinking - ✔✔Bevel in the mouth of a hole with a rotary tool. Used to set the
head of a screw or rivet flush with the material.
✔✔Non- adjustable countersink - ✔✔Most commonly used. Has two ore more cutting
lips.
✔✔Adjustable countersink - ✔✔Better to use. Produces a more uniformed cone-
shaped recess.
✔✔Chattering - ✔✔Dull machine countersink
ANSWERS SURE A+
✔✔squaring shear - ✔✔cuts heavy gage metal
squaring and multiple cutting
✔✔Stress Relieving - ✔✔Sharp corners in the cutout cause stress and eventually crack
the member, file and finish edges of the original panels and repair the parts. Must be
free of nicks and burrs to prevent cracking nicks.
✔✔Stake and stake plate - ✔✔Heavy metal forms, that back up metal when forming
different curves, angles, and seams.
✔✔Straight bend - ✔✔Lightly tap at end, working across to other end
✔✔Concave bend - ✔✔Lightly tap metal at end, working towards the center, stop at
center, do the same on other side, working towards the center.
✔✔Convex bend - ✔✔Glancing blows with mallet while using a backup block, working
from the center to both ends.
✔✔Cornice break - ✔✔Bends large sheets of metal of various thickness, that require a
specific thickness
✔✔Bar folder - ✔✔making bends or folds along edges
folds 1 inch wide
✔✔Slip roll former - ✔✔Forming sheet metal into curves and cylinders of various
diameters
✔✔Box and Pan Brake - ✔✔Making boxes and pans of various sizes.
✔✔rotary machine - ✔✔A bench-mounted machine with two removable rollers that
enable the mechanic to burr, turn, wire, bead, and crimp sheet metal
✔✔flanging dies - ✔✔Form a bend or flange in the center of a sheet of metal without
distortion
✔✔General purpose drill bits - ✔✔High speed steel, used for drilling soft steel
aluminum, and non metallic. Come in standard sizes.
✔✔Carbide-tipped drill bits - ✔✔Drill bits with carbide inserts mounted in cutting lips,
used for cars iron, and ferrous metals.
, ✔✔Degree of angle of tip on carbide tipped drill bit - ✔✔59
✔✔Ranges of Drill bit sizing in inches - ✔✔1/16 to 4 inches or larger.
✔✔Ranges of drill bit sizing in letter - ✔✔A to Z. A being the smallest.
✔✔A drill bit letter - ✔✔0.234
✔✔Z Drill bit letter - ✔✔0.413
✔✔Ranges of drill bit sizing in number - ✔✔No. 80 to No. 1. No. 80 being the smallest.
✔✔No. 80 brill bit number - ✔✔0.0135
✔✔No. 1 drill bit number - ✔✔0.228
✔✔Chuck - ✔✔Adjustable fitting with serrations around outer edge
✔✔Drill press - ✔✔Electrically powered, used for heavy duty and sensitive drilling.
✔✔Cleco Fasteners - ✔✔temporarily secure parts in position for drilling
✔✔Cleco Pliers - ✔✔used to remove and replace cleco fasteners
✔✔Edge distance - ✔✔The distance from the center of the rivet to the nearest edge of
the metal
✔✔countersunk edge distance - ✔✔min edge distance= 2 1/2 times D of rivet
max edge distance= 4 times D of rivet
✔✔Improper Edge Distance - ✔✔If rivets are too close to the edge, the sheet will crack
or pull away from rivets. If too far away, the sheet will turn up.
✔✔Countersinking - ✔✔Bevel in the mouth of a hole with a rotary tool. Used to set the
head of a screw or rivet flush with the material.
✔✔Non- adjustable countersink - ✔✔Most commonly used. Has two ore more cutting
lips.
✔✔Adjustable countersink - ✔✔Better to use. Produces a more uniformed cone-
shaped recess.
✔✔Chattering - ✔✔Dull machine countersink
