CR103B Structural I

Cut and join is a process used for:

making a cut line for an open butt joint.

Which of these is shown in the illustration above?

Tapered lap joint

Technician A says that a backing is required for a flat lap joint.Technician B says that continuous fillet welds are used to close the seams on a tapered lap joint.Who is right?

B only

Which of these operations should be done first when replacing a part of a unitized structure?

Restore vehicle dimensions

Technician A says that most replacement spot welds are made at the same locations as the existing spot welds.Technician B says that single-sided spot welding is generally recommended. Who is right?

Neither A nor B

Technician A says that removing seam sealer may help exposed hidden spot welds.Technician B says that vehicle-specific service information may provide spot weld loca-tions.Who is right?

Both A and B

All of these are designed to be used for removing spot welds EXCEPT a:

reciprocating saw.

Technician A says that radiator core supports may have a different look, but all have upper and lower tie bars and side supports.Technician B says that a radiator core support may be bolted on.Who is right?

B only

Which of these may be a strengthened area in a rail?

An inner reinforcement

Technician A says that replacement of the rear rail may involve removal of the fuel tank.

Technician B says that replacement of the rear rail may involve removal of the rear body panel.

Who is right?

Both A and B

All of these are true about floor assembly crossmembers EXCEPT they:

are usually stamped into the floor pan.

Technician A says that rear rails may be closed out on the end by the rear body panel.Technician B says that cutting an access hole in the trunk floor to assist with straightening is considered sectioning.Who is right?

Both A and B

Which flat area of a strut tower assembly may be able to be straightened?

Apron panel, forward of the strut tower

Technician A says that an inner rail may be supplied as a separate replacement part. Technician B says that convoluted areas on a rail should be reinforced with inserts. Who is right?

A only

Technician A says that a floor pan may have convolutions, similar to rails. Technician B says that a floor pan may have extra-strength areas, similar to rails. Who is right?

Both A and B

All of these may be recommended for making a seam weld along a sectioning joint EXCEPT:

spot welds.

Technician A says that damaged foam filler can be placed back into a pillar and reused. Technician B says that a service part may be supplied with foam filler already installed. Who is right?

B only

The kink vs. bend rule is a guideline for:

deciding to repair or replace a part.

The I-CAR Partial Replacement Matrix provides:

a list of partial replacement procedures available for a vehicle.

Cut-and-join is a method for:

cutting for an open butt joint.

Tack welds:

can be used to hold parts in position for proper joint fit-up.

Technician A says that one reason for notching the pinchweld flanges with a flanged lap joint is to allow the weatherstripping to fit.Technician B says that a flanged lap joint requires a backing on the pinchweld flanges. Who is right?

A only

Technician A says that if weld-through primer is applied to a weld area, it should be removed from the specific site where the weld will be made.Technician B says that some vehicle makers do not recommend the use of weld-through primer.Who is right?

Both A and B

Which of these supports the door opening pillars and the floor pan?

Rocker panel

Technician A says that clamps should not be used to hold the B-pillar in place during a test-fit.Technician B says that the B-pillar can be held in place using screws during a test-fit.Who is right?

B only

Technician A says that inner C-pillars are generally replaced at factory seams.Technician B says that a replacement outer C-pillar may be included with the replacement quarter panel.Who is right?

Both A and B

Technician A says that curtain airbags are removed as a curtain/inflator assembly. Technician B says that curtain airbag inflators are typically bolted to the A-pillar.Who is right?

Neither A nor B

Technician A says that the inner rocker panel may be part of the floor pan. Technician B says that a rocker panel may also be referred to as a sill.Who is right?

Both A and B

Technician A says that a C- and D-pillar inner structure may be available as a single assembly.Technician B says that full replacement of a C- and D-pillar inner structure typically requires removing undamaged parts.Who is right?

Both A and B

The outer B-pillar was damaged in a collision.Technician A says that the reinforcement may need to be repaired or replaced because it was also damaged during the collision.Technician B says that outer and inner offset weld joints may be required.Who is right?

Both A and B

Technician A says that the outer uniside may include the quarter panel. Technician B says that the outer uniside may include a complete or partial door opening.Who is right?

Both A and B

Technician A says that small brackets attached to a recycled assembly typically cannot be used.Technician B says that many OEMs do not recommend using recycled parts.Who is right?

B only

Technician A says that stationary glass may have to be removed before the roof panel can be removed.Technician B says that the existing roof panel may be able to be reinstalled after it has been removed.Who is right?

Both A and B

When replacing a complete uniside, an undamaged roof may require removal because the roof:

overlaps where the uniside is attached.

The "R" on an "R-DOT" label stands for:

replacement.

Technician A says that parts that are going to be straightened should be returned to proper specifications.Technician B says that straightening ultra-high-strength steel (UHSS) parts may cause damage to other parts on the vehicle.Who is right?

Both A and B

All of these may be required when test-fitting a welded-on part EXCEPT:

applying a wax-based anti-corrosion compound.

Technician A says that a floor crossmember may be located underneath the floor pan.Technician B says that a floor crossmember may be made of HSS.Who is right?

Both A and B

Technician A says that squeeze-type resistance spot welding (STRSW) may be used on open butt joints.Technician B says that replacement spot welds may be made adjacent to the original spot weld locations.Who is right?

B only

Technician A says that cut locations for sectioning joints may be identified by a die mark stamped into the part.Technician B says that a vehicle maker recommended sectioning cut location may be identified as a precise measurement from a reference point.Who is right?

Both A and B

Technician A says that an outer panel that is removed by grinding the spot welds with a cutoff wheel may be reattached.Technician B says that paint coatings may require removal when locating original spot welds.Who is right?

B only

Tailor-welded blanks may be:

made with a pressurized roller system.

Only an outer panel is being replaced.Technician A says that removing the spot welds by drilling through both panels allows the plug welds to be made through the replacement outer panel.Technician B says that placing a metal tab between panels may help prevent cutting into the flange.Who is right?

B only

Which of these is a characteristic of a hydroformed part?

No flanges

Technician A says that an insert may add strength to a joint.Technician B says that the purpose for using an insert is to add corrosion protection to the joint.Who is right?

A only

When plug welding a new rear rail to the trunk floor:

make as many plug welds as original spot welds.

Technician A says that the Partial Replacement Recommendations Matrix provides sectioning procedures.Technician B says that the Partial Replacement Recommendations Matrix is vehicle-specific.Who is right?

Both A and B

The rear rail may be closed out by the:

quarter panel.

Technician A says that not closing a continuous GMA (MIG) weld seam may create an unintended collapse zone.Technician B says that heat sink putty may be used to prevent the weld zone from being overheated.Who is right?

A only

Which of these is true about using a template?

It is used to mark a cut location on a part.

Technician A says that weld-on tabs may be used to straighten a dent in a laminated steel part.Technician B says that heat may be used to straighten minor damage to a laminated steel part.Who is right?

Neither A nor B

A strut tower assembly includes the:

apron panels.

The stitch welding technique is used for:

limiting the heat-affect zone.

Technician A says that weld-through primer can be removed from the weld zone to minimize weld contamination.Technician B says that weld-through primer should be used on the mating flanges of weld-bonded panels.Who is right?

Both A and B

Technician A says that inserts should be installed in crush zones when sectioning front frame rails.Technician B says that a tapered lap joint is one method for sectioning lower rails.Who is right?

B only

Technician A says that a compound bit may be used for removing spot welds without leaving a hole in both panels.Technician B says that the depth of cut may be adjusted on a pneumatic C-clamp style drill.Who is right?

B only

An insert for a butt joint with backing is likely to match the contours of the part if it is:

made from an unused portion of the part.

All of these are true about floor pans EXCEPT:

no factory seams at the rocker panels.

Technician A says that the trunk floor may require removal when sectioning the rear rail.Technician B says that complete replacement of the rear rail may require extensive disassembly of the passenger compartment.Who is right?

Both A and B

Which of these contains the front door striker?

B-pillar

Which of these is used to help manage noise, vibration, and harshness?

Foam filler

Replacing a D-pillar at factory seams may require removal of the:

roof.

Technician A says that the sectioning location for an outer uniside may be based on the extent of the damage.Technician B says that replacement roofs originally attached with laser welds may be installed with adhesive.Who is right?

Both A and B

Technician A says that the outer uniside may include the quarter panel.Technician B says that a B-pillar of an outer uniside may be serviced as an individual part.Who is right?

Both A and B

Technician A says that spot welds may be used to identify reinforcement locations.Technician B says that the vehicle-specific body repair manual may be used to identify reinforcement locations.Who is right?

Both A and B

Which of these separates the engine compartment from the passenger compartment?

Cowl assembly

An R-DOT label on a part may be used for:

anti-theft purposes.

Technician A says that some reinforcement locations may be identified by looking through access holes.Technician B says that some reinforcement locations may be identified by looking at the mating flange.Who is right?

Both A and B

Technician A says that when installing a recycled assembly, the outer panel may have to be removed to properly attach the inner panel.Technician B says that when installing a recycled part, all of the existing corrosion protection should be removed and replaced.Who is right?

A only

Technician A says that when using the cut-and-join method on an outer B-pillar, the final cut is made on both parts at the same time.Technician B says that a butt joint with backing weld is used with the cut-and-join method.Who is right?

A only

Which of these types of respirators should be worn when applying corrosion protection?

Organic vapor

Technician A says that replacement foam filler should be installed at the sectioning joint location before welding.Technician B says that replacement foam filler may be installed in the replacement part.Who is right?

B only

The outer B-pillar was damaged in a collision.Technician A says that the reinforcement may require repair.Technician B says that weld joints may be required to be offset between the outer and inner panels when sectioning.Who is right?

Both A and B

Technician A says that convertible A-pillar reinforcements may be tubular shaped.Technician B says that convertible A-pillar reinforcements may be a higher strength steel than the outer A pillar.Who is right?

Both A and B

Technician A says that using the stitch welding technique may reduce the heat-affect zone when GMA (MIG) welding.Technician B says that increasing the shielding gas flow may reduce the heat-affect zone when GMA (MIG) welding.Who is right?

A only

Technician A says that it may be necessary to remove the roof to replace the outer A-pillar.Technician B says that it may be necessary to remove the floor pan to replace the outer A-pillar.Who is right?

A only

Technician A says that some B-pillars may have multiple reinforcements.Technician B says that some B-pillars may be intended to deform in the center.Who is right?

A only

Technician A says that a cowl assembly may include the trunk floor.Technician B says that the windshield may require removal to repair the cowl assembly.Who is right?

B only

When replacing a complete uniside, an undamaged roof may require removal because the uniside:

attachment is under the roof.

Technician A says that inserts used in butt joint with backing welds are intended to add strength to the joint.Technician B says that multiple reinforcements in a part make the use of inserts when sectioning difficult.Who is right?

Both A and B

All of these undamaged parts may require removal before replacing an inner rocker panel EXCEPT the:

floor.

Technician A says that when using recycled parts, documentation is recommended.Technician B says that recycled assemblies may contain aftermarket parts.Who is right?

Both A and B

Technician A says that a sectioning procedure may require removal of the zinc coating in the joint area.Technician B says that a sectioning procedure may require the application of weld-through primer to the joint area.Who is right?

Both A and B

Weld-through primer is often recommended to be applied on which of these surfaces?

Bare metal surface