CAADE Damage Analysis and Inspection 2 — Questions and Answers
Question 1: When inspecting a vehicle for hidden structural damage after a frontal collision, which area requires the most careful measurement?
- Roof panel alignment
- Strut tower-to-strut tower width (Correct answer)
- Door gap uniformity
- Trunk lid fitment
Correct answer: Strut tower-to-strut tower width
Strut tower-to-strut tower width is a primary datum measurement used to detect crush or lateral misalignment in the engine compartment after a frontal impact.
Question 2: A vehicle exhibits paint cracking in a starburst pattern on a body panel. This most likely indicates:
- Age-related weathering
- Improper panel straightening without removing the paint (Correct answer)
- Factory paint defect
- Chemical etching from bird droppings
Correct answer: Improper panel straightening without removing the paint
Starburst or spider-web paint cracking typically results from metal being worked or straightened without stripping the paint layer first.
Question 3: Which tool is specifically used to measure and compare diagonal distances across a vehicle's body structure?
- Trammel bar (Correct answer)
- Feeler gauge
- Slide hammer
- Depth micrometer
Correct answer: Trammel bar
A trammel bar measures diagonal distances across the vehicle frame or body to detect diamond or twist damage.
Question 4: During a damage inspection, 'cow-catcher' deformation refers to damage occurring at the:
- Rear bumper reinforcement
- Front lower rail tips folding outward (Correct answer)
- Rocker panel lower edge
- A-pillar base
Correct answer: Front lower rail tips folding outward
Cow-catcher describes a condition where the front frame rail tips fold outward and upward, resembling the shape of a train's cow-catcher.
Question 5: An appraiser finds that a vehicle's headlamp-to-fender gap is wider on the driver side than the passenger side. This finding most directly suggests:
- Factory assembly variance
- Driver-side front-end misalignment or structural shift (Correct answer)
- Aftermarket headlamp installation
- Normal suspension settling
Correct answer: Driver-side front-end misalignment or structural shift
Uneven headlamp-to-fender gaps indicate that the front-end structure has shifted, commonly from a prior collision on that side.
Question 6: Which type of damage is characterized by a vehicle's frame being higher on one corner relative to the others?
- Sway damage
- Diamond damage
- Twist damage (Correct answer)
- Mash damage
Correct answer: Twist damage
Twist damage occurs when one corner of the vehicle structure is displaced vertically relative to the others, causing a torsional distortion.
Question 7: When inspecting a unibody vehicle after a side impact, the inspector should pay particular attention to:
- Engine mount integrity
- Rocker panel crush and floor pan buckling (Correct answer)
- Transmission crossmember alignment
- Trunk floor seam welds
Correct answer: Rocker panel crush and floor pan buckling
The rocker panel is a primary structural member in a unibody, and side impacts frequently cause rocker crush and floor pan deformation that affects structural integrity.
CAADE Damage Analysis and Inspection 2
When inspecting a vehicle for hidden structural damage after a frontal collision, which area requires the most careful measurement?