Question 1

Technician A says that hammer on-dolly is used during the finishing phase of the metal repair. Technician B says that hammer off-dolly is used during the initial stages of the repairs. Who is correct?

Accepted Answer

Both technicians are correct. Hammer off-dolly is used during the initial stages of metal repair to remove high spots and straighten the metal. Hammer on-dolly is used during the finishing phase to smooth and shape the metal into the desired contours.

Question 2

____________________ hardening is the process during which metal becomes harder when cold worked during manufacturing.

Accepted Answer

Work

Question 3

Technician A says that aluminum does not work harden when repaired. Technician B says that galvanic corrosion occurs when galvanized steel is worked. . Who is correct?

Accepted Answer

Aluminum does work harden when repaired, contrary to Technician A's statement. Galvanic corrosion refers to the corrosion that occurs when two different metals are in electrical contact in the presence of an electrolyte; it is not specifically about the working of galvanized steel, as Technician B suggests.

Question 4

Aluminum is both thinner and stronger than its comparable steel counterpart is.

Accepted Answer

Aluminum is generally lighter than steel, but it is not stronger than steel when comparing materials of the same thickness. Steel typically has higher tensile strength.

Question 5

Technician A says that series 3000 series aluminum alloy is nearly 100% pure and used for electrical wire. Technician B says that heat should be used only when straightening heat treatable aluminum alloys. Who is correct?

Accepted Answer

The 3000 series aluminum alloy is not nearly 100% pure; it actually contains manganese and is known for its moderate strength and great formability, not primarily for electrical wire. Heat should be used cautiously with aluminum alloys, and the statement about using heat only for straightening heat-treatable alloys is overly simplistic and not entirely accurate.

Question 6

____________________ stands for high strength steel.

Accepted Answer

The answer of ____________________ stands for high strength steel....

Question 7

Surfacing spoon is nearly flat and is used for ____________________ work.

Accepted Answer

The answer of Surfacing spoon is nearly flat and is...

Question 8

Work ____________________ is the process during which metal becomes harder when cold worked during manufacturing.

Accepted Answer

The answer of Work ____________________ is the process during which...

Question 9

The largest amount of visible damage on a vehicle is often indirect damage.

Accepted Answer

Direct damage refers to the immediate impact area and is usually the most visibly damaged part of a vehicle, whereas indirect damage can occur as a result of the primary impact but is typically less visible.

Question 10

Technician A says that spring hammering means several spring-like hammer blows are struck to avoid stretching the metal Technician B says that a spoons are rough-out tools. Who is correct?

Accepted Answer

Technician A is correct because spring hammering is a technique used to avoid overstretching the metal by applying multiple lighter blows, similar to the action of a spring. Technician B is also correct because spoons are indeed used as rough-out tools in metalworking, particularly in auto body repair, to shape metal surfaces before finer finishing.

Question 11

Technician A says that hot rolled steel is commonlly used to make outer body panels. Technician B says that cold rolled steel is commonly used for frame rails. Who is correct?

Accepted Answer

Hot rolled steel is typically used for structural components like frame rails due to its strength, while cold rolled steel is used for outer body panels because of its smoother finish and better surface quality.

Question 12

Pick hammers and picks tools cause corrosion hot spots that must be repaired with corrosion protection.

Accepted Answer

Hammers and picks tools cause mechanical wear on equipment, leading to corrosion hot spots that must be addressed with corrosion protection to prevent further damage.

Question 13

A general-purpose dolly is sometimes called a ____________________ dolly.

Accepted Answer

The answer of A general-purpose dolly is sometimes called a...

Question 14

Pulling tools are often used when two-side access is not possible.

Accepted Answer

Pulling tools, such as slide hammers and bearing pullers, are designed to remove parts when two-side access is not possible. They work by applying force from one side of the object while gripping it from the other side.

Question 15

Technician A says that roll buckles usually occur at the point of impact. Technician B says that the inability to access the back side of the damage for repair will necessitate the use of heat applied pulling tabs. Who is correct?

Accepted Answer

The answer of Technician A says that roll buckles usually...

Question 16

Technician A says that a slapping spoon is used in the last step of straightening metal prior to sanding and surface removal. Technician B says that pick hammers are used for raising slight indentations in the metal. Who is correct?

Accepted Answer

Both technicians are correct. A slapping spoon is used in the final step of straightening metal to remove any remaining small waves or ripples, while a pick hammer is used to raise slight indentations in the metal before smoothing with a slapping spoon.

Question 17

Technician A says that direct damage usually affects the exterior body panels of the vehicle. Technician B says that indirect damage is often the largest amount of damage that occurs in a collision. Who is correct?

Accepted Answer

Both statements are correct. Direct damage refers to the immediate impact area and often involves the exterior body panels. Indirect damage, which can be more extensive, refers to the damage that occurs as a consequence of the initial impact, affecting areas beyond the immediate impact site.

Question 18

Technician A says that boron steel is a type of ultra-high-strength steel that is very repairable Technician B says that mild steel has a yield strength of approximately 30,000 PSI. Who is correct?

Accepted Answer

Boron steel, while being ultra-high-strength, is not considered very repairable due to its properties. Mild steel does have a yield strength of approximately 30,000 PSI, making Technician B correct.

Question 19

Technician A says that elasticity is the ability of steel to be bent and then return to its original shape. Technician B says that elasticity is steel's ability to be formed into different shapes and retaining those shapes. Who is correct?

Accepted Answer

Technician A is correct. Elasticity refers to the ability of a material to be deformed and then return to its original shape. Technician B is describing malleability, which is the ability of a material to be formed into different shapes and retain those shapes.

Question 20

Aluminum's corrosion resistance, light weight, and crash predictability make engineers prefer to use it instead of steel.

Accepted Answer

Aluminum's corrosion resistance, light weight, and crash predictability do make it a preferred choice over steel for many engineering applications.

Quiz 7: Straightening Steel and Aluminum