Question 1

Inertial forces are frequently the cause of the damage that occurs in a part of the vehicle away from the impact area.

Accepted Answer

Inertial forces can cause damage to parts of the vehicle that are not in the impact area, such as the occupants inside the vehicle. This can occur due to sudden changes in speed or direction that can cause the body to move rapidly and collide with objects within the vehicle.

Question 2

Technician A says crush zones are built into the B-Pillar for added reinforcement. Technician B says the collision damage radiating throughout the vehicle many times can be traced or identified most easily by following the crush zones on the structural panels. Who is correct?

Accepted Answer

Crush zones are designed to absorb and distribute the energy during a collision, not for reinforcement. They are indeed used to trace or identify how the collision damage has radiated throughout the vehicle.

Question 3

Technician A says inertia movement can cause damage to the engine and transmission mounts. Technician B says that many vehicle manufacturers use sacrificial structures to absorb and re-direct the effects of the impact forces. Who is correct?

Accepted Answer

Inertia movement can indeed cause damage to engine and transmission mounts, and many vehicle manufacturers do use sacrificial structures to absorb and re-direct impact forces. Therefore, both Technician A and Technician B are correct.

Question 4

Technician A says aluminum parts are sometimes used in vehicle manufacturing because they straighten more easily following a collision. Technician B says that anti-theft labels have the vehicles VIN on them. Who is correct?

Accepted Answer

Technician B is correct because anti-theft labels indeed have the vehicle's VIN (Vehicle Identification Number) on them, which helps in identifying and recovering stolen vehicles. Technician A's statement is incorrect; aluminum parts are used in vehicle manufacturing primarily because they are lighter than steel, which helps in improving fuel efficiency and reducing emissions, not because they straighten more easily following a collision.

Question 5

Technician A says the VIN is a 19-digit number which provides vehicle-specific information to the technician. Technician B says some vehicles have an inertial shut-off switch that automatically turns the fuel pump off when the vehicle stops abruptly such as in a collision. Who is correct?

Accepted Answer

The VIN (Vehicle Identification Number) is actually a 17-digit number, not 19, making Technician A's statement incorrect. Technician B is correct; some vehicles do indeed have an inertial shut-off switch that turns the fuel pump off in the event of a collision to prevent fuel leaks and potential fires.

Question 6

The large plastic covering over the front and rear area of the vehicle where the bumper is typically attached is called a ____________________.

Accepted Answer

The answer of The large plastic covering over the front...

Question 7

Technician A says all the sensitive warning and informational sensors placed at the front of the vehicle are encased in protective housings to protect them in a collision. Technician B says the damage sustained by a body over frame vehicle tends to spread more widely than on a unibody. Who is correct?

Accepted Answer

Sensitive sensors are not always encased in protective housings, and damage in a body over frame vehicle tends to be more localized, not spread widely.

Question 8

Technician A says a hybrid vehicle may be either a partial hybrid or a full hybrid. Technician B says the direct damage area is very obvious and becomes less visible the further the damage moves away from and the point of impact. Who is correct?

Accepted Answer

The answer of Technician A says a hybrid vehicle may...

Question 9

Technician A says the speed of the vehicle and the angle of impact have little affect on the damage report when it is written. Technician B says using a recycled part may include additional needed parts that would otherwise not be included if new OEM parts were used for the repairs. Who is correct?

Accepted Answer

Technician B is correct because using recycled parts can indeed include additional components that might not come with new OEM (Original Equipment Manufacturer) parts, potentially affecting the repair process and parts list. Technician A is incorrect because the speed of the vehicle and the angle of impact significantly affect the extent of damage and thus the details of the damage report.

Question 10

Technician A says a McPherson strut is a suspension system used on most unibody vehicles and includes among other things the shock absorber, spring and upper control arm. Technician B says that "back light" is a term sometimes used to describe the rear passenger compartment window. Who is correct?

Accepted Answer

McPherson strut is a suspension system used on most unibody vehicles and includes among other things the shock absorber, spring and upper control arm, which is correct according to Technician A. Technician B is also correct, as "back light" is a term sometimes used to describe the rear passenger compartment window.

Question 11

Inertial forces frequently cause the damage immediately around point of impact.

Accepted Answer

Inertial forces are related to the motion of the body and do not directly cause damage at the point of impact. Damage at the point of impact is typically caused by contact forces.

Question 12

A part attached to the fan which engages and disengages as needed, allowing the fan blade to 'freewheel' once the vehicle reaches a certain speed, is a ____________________.

Accepted Answer

The answer of A part attached to the fan which...

Question 13

A ____________________ bar is straight line measuring device used to make various comparative measurements or by using the manufacturers printed specifications

Accepted Answer

The answer of A ____________________ bar is straight line measuring...

Question 14

A vehicle skidding sideways during a collision will not affect the suspension parts.

Accepted Answer

When a vehicle skids sideways during a collision, it can put significant stress on the suspension parts, causing damage or even total failure of the suspension system.

Question 15

A label bearing the vehicle's VIN, attached to most of the exterior body panels on select vehicles and used for tracking and identification purposes, is called the anti-theft label.

Accepted Answer

Anti-theft labels bearing the vehicle's VIN are attached to various exterior body panels on some vehicles to deter theft and aid in vehicle identification and recovery.

Question 16

A method of attaching a replacement panel such as a roof, which incorporates the use of both adhesives and welding is called ____________________ bonding.

Accepted Answer

The answer of A method of attaching a replacement panel...

Question 17

The ____________________ damage is a result of the damaging forces moving through the vehicle and rarely show any visible signs of contact with the impact object.

Accepted Answer

The answer of The ____________________ damage is a result of...

Question 18

Technician A says that harsh noises and vibrations from the road and vibrations that may come from various rotating mechanical parts is referred to as NIV. Technician B says that oil or other fluids that leak into the cylinders from a rollover crash may cause "hydraulic lockup" of the engine. Who is correct?

Accepted Answer

Technician A is correct in defining NIV as harsh noises and vibrations from the road and other rotating mechanical parts. However, Technician B is incorrect as hydraulic lockup is caused when fluid accumulates in the combustion chamber, typically due to a leaking fuel injector or a failed head gasket, not from oil or other fluids leaking into the cylinders from a rollover crash.

Question 19

Which of the following would NOT normally be used to make comparative measures on the undercarriage when checking for damage?

Accepted Answer

Self-centering gauges are not normally used to make comparative measures on the undercarriage when checking for damage.

Question 20

Reinforcement foam need not be replaced if some of it comes off when removing the damaged panel.

Accepted Answer

Reinforcement foam is crucial for maintaining the structural integrity and safety of a vehicle. If some of it comes off when removing a damaged panel, it needs to be properly replaced to ensure the vehicle's strength and safety are restored to original specifications.

Quiz 11: Collision Damage Analysis