Question 1

Aluminum dust can be removed from sanding discs with low pressure air.

Accepted Answer

False

Question 2

The term MOST-Likely used to describe the amount of force that a piece of metal can resist without tearing or breaking is:

Accepted Answer

D

Question 3

Indirect damage is caused by the shock of collision forces travelling through the body.It represents, on average, 40 percent of the overall damage.

Accepted Answer

Indirect damage refers to the damage that occurs away from the initial impact site, caused by the transfer of energy through the body, but there is no specific percentage that universally represents the average of overall damage as it can vary greatly depending on the nature of the collision and the structures involved.

Question 4

Which of the following is LEAST-Likely a type of load?

Accepted Answer

The correct term is "Shear," not "Shave." Tension, Compression, and Peel are all recognized types of loads in engineering and materials science. "Shave" appears to be a typographical or conceptual error, making it the least likely to be a type of load.

Question 5

Deformation is the ability of metal to be bent or formed into different shapes.

Accepted Answer

The answer of Deformation is the ability of metal to...

Question 6

All of the following represent a condition that occurs when metal is damaged by impact EXCEPT:

Accepted Answer

Plasticity is the ability of a metal to undergo permanent deformation without breaking, not a condition of damage.

Question 7

The hammer-on-dolly method is used to raise low spots and lower high spots simultaneously.

Accepted Answer

The hammer-on-dolly method is primarily used to smooth out dents where the dolly is used to support the metal from one side while hammering from the other, not specifically to raise low spots and lower high spots simultaneously.

Question 8

Buckles caused by impact create additional work hardening in an automotive sheet metal panel, but bent metal is not necessarily buckled metal.

Accepted Answer

Buckles caused by impact indeed create additional work hardening due to the deformation process, which alters the metal's structure making it harder. However, bending metal, such as in a controlled manufacturing process, does not necessarily lead to buckling, which is a specific type of deformation characterized by a sudden failure mode in structural elements.

Question 9

A high spot or sheet metal bump is an area that sticks up higher than the surrounding surface.

Accepted Answer

A high spot or sheet metal bump refers to an area on a metal surface that protrudes or sticks out higher than the surrounding areas, often resulting from deformation or damage.

Question 10

Any metal that is bent to form an angle is considered a box section.

Accepted Answer

The answer of Any metal that is bent to form...

Question 11

____ is the ability of metal to stretch and return to its original shape.

Accepted Answer

Elastic deformation is the property of a material (in this case, metal) that allows it to stretch and then return to its original shape without undergoing permanent deformation.

Question 12

Spoons can be used to pry out dents and certain kinds can be struck with a hammer to drive out dents.

Accepted Answer

Spoons, especially those designed for automotive bodywork, can be used to pry out or smooth dents, and some types can indeed be struck with a hammer to help drive out dents from metal surfaces.

Question 13

The oxyacetylene torch with a #1 or # 2 tip should not be used to heat shrink sheet metal panels made of steel.

Accepted Answer

The oxyacetylene torch with a #1 or #2 tip can be used for heat shrinking sheet metal panels made of steel, as long as it is done carefully and skillfully to avoid overheating and warping the metal.

Question 14

____ occurs when plastic deformation has caused the metal to become very hard in the bent area.

Accepted Answer

Work hardening occurs when the structure of the metal is altered through plastic deformation, making it harder and stronger in the area that has been deformed.

Question 15

High-strength steel (HSS) is stronger than low-carbon or mild steel because of heat treatment.

Accepted Answer

HSS is stronger than low-carbon or mild steel because of its higher carbon content and heat treatment, which increases its strength and hardness.

Question 16

____ refers to the new, undesired bent shape the metal takes after an impact or a collision.

Accepted Answer

Deformation refers to the change in shape of a material (in this case, metal) due to the application of force, such as in an impact or collision.

Question 17

Glue-on tab dent pulling disturbs the corrosion protection on the backside of a panel.

Accepted Answer

Glue-on tab dent pulling is a non-invasive method that does not disturb the paint or corrosion protection on the backside of a panel, as it does not require drilling or welding.

Question 18

While having a discussion, Technician A says that sheet metal lowering means to work a dent outward or away from the body.Technician B says that sheet metal lowering means to work a high spot or bump down or into the body.Who is correct?

Accepted Answer

Sheet metal lowering refers to working a high spot or bump down or into the body, as Technician B stated.

Question 19

Low-carbon steel, or mild steel (MS), has a low level of carbon and is relatively soft and easy to work.

Accepted Answer

Low-carbon steel, also known as mild steel, contains a low amount of carbon, typically between 0.05% to 0.25%, making it softer and more ductile, which allows for easier shaping and forming processes.

Question 20

While having a discussion about glue-on tab dent pulling, Technician A says you may use rubbing alcohol to remove the glue tab.Technician B says that paint reducer should be used.Who is correct?

Accepted Answer

Rubbing alcohol is a safe and effective method for removing glue from surfaces without damaging automotive paint, whereas paint reducer can potentially harm the finish.

Quiz 11: Repairing Sheet Metal