Question 1

Technician A says some manufacturers' frame rails have preformed inserts built into them. Technician B says many of the repair vs. replacement rules used for steel repairs are not applicable when working with aluminum. Who is correct?

Accepted Answer

Both statements are correct. Some manufacturers do incorporate preformed inserts in their frame rails for various reasons, including structural integrity and ease of assembly or repair. Additionally, aluminum behaves differently than steel in terms of repairability, thermal properties, and corrosion resistance, which means that the rules and techniques for repairing steel cannot always be directly applied to aluminum.

Question 2

The entire frame must be rough repaired before _____________ any parts from the damaged frame.

Accepted Answer

removing

Question 3

Technician A says some manufacturers use a process called hydroforming to manufacture frame sections or rails. Technician B says that safety glasses and protective gloves are always minimal safety equipment when a technician is making any type of repairs on a vehicle. Who is correct?

Accepted Answer

Hydroforming is indeed used by some manufacturers to create frame sections or rails, making Technician A correct. Technician B is also correct in stating that safety glasses and protective gloves are always considered minimal safety equipment when making any type of vehicle repairs, emphasizing the importance of personal protective equipment in automotive work.

Question 4

Technician A says an open butt joint is commonly used when replacing a frame rail section. Technician B says that a structural part which is to be replaced should be cut off before rough pulling. Who is correct?

Accepted Answer

The answer of Technician A says an open butt joint...

Question 5

A tack weld and a spot weld are the same.

Accepted Answer

A tack weld and spot weld are not the same. A tack weld is a temporary weld used to hold parts together before the final weld, while a spot weld is a permanent weld that creates a series of small welds, typically used in automotive and sheet metal applications.

Question 6

The ____________ service manual should be consulted as the first source of information for repair procedures.

Accepted Answer

The answer of The ____________ service manual should be consulted...

Question 7

Problems such as corrosion, unknown previous repairs, alterations and modifications are all "unknowns" when using ______________parts.

Accepted Answer

The answer of Problems such as corrosion, unknown previous repairs,...

Question 8

Technician A says before attempting to make any type of repair the technician must become familiar with the type of material used by the manufacturer in the area where the repairs are to be affected. Technician B says the high strength steel, when pulled, may develop small, hard-to-identify cracks. Who is correct?

Accepted Answer

Both technicians are correct. Technician A is correct because it is important for the technician to understand the type of material being used in order to make the proper repair using the correct tools and techniques. Technician B is correct because high strength steel can develop small, hard-to-identify cracks when pulled, which can be a safety concern if the repair is not done properly.

Question 9

Technician A says frame rails are all made of high strength steel. Technician B says the ladder frame is comonly used on unibody vehicles. Who is correct?

Accepted Answer

Both technicians are incorrect. Frame rails can be made of various materials including high strength steel, but also aluminum, magnesium, and composite materials. The ladder frame design is not commonly used on unibody vehicles, as a unibody chassis does not have a separate frame like a body-on-frame design.

Question 10

Technician A says the insert for a frame rail should be approximately 50 to 75 MM in length. Technician B says when welding a sectioned rail togeter, the root gap should be approximately 3 MM. Who is correct?

Accepted Answer

Technician A is correct that the insert for a frame rail should be approximately 50 to 75 MM in length. This is important to ensure that the replacement section fits properly and can be securely welded in place.

Technician B's statement about the root gap when welding a sectioned rail together is not necessarily true for all situations. The appropriate root gap will depend on the materials being welded, the welding process being used, and other factors. Therefore, option B is incorrect.

Question 11

Technician A says that if an aluminum part is bent, it should be repaired. Technician B says that extruded aluminum parts are frequently used as sacrificail rail extensions. Who is correct?

Accepted Answer

The answer of Technician A says that if an aluminum...

Question 12

Some frame rail sections are made in the shape of a box and are high strength steel.

Accepted Answer

Some frame rail sections are indeed made in the shape of a box and are constructed from high strength steel.

Question 13

Technician A says whenever the butt joint is used for a frame rail replacement it is recommended that a backer be used. Technician B says the insert can be made from part of the damaged part being replaced. Who is correct?

Accepted Answer

Technician A is correct, as a backer is recommended when using a butt joint for a frame rail replacement to provide additional strength and support. Technician B is also correct, as the insert can be made from part of the damaged part being replaced to ensure a precise fit and proper alignment. Therefore, both technicians are correct.

Question 14

When ordering a recycled replacement part it is advisable to order it at least 6 inches longer than what is needed to allow for the heat affect zone from the removal of the part.

Accepted Answer

The heat affect zone from the removal of the part can cause the part to shrink, so it is advisable to order a replacement part that is at least 6 inches longer than what is needed to allow for this shrinkage.

Question 15

Technician A says that all structural replacement parts must be installed at factory seams. Technician B says that sectioning cut lines are always left to the technician's discretion. Who is correct?

Accepted Answer

Structural replacement parts should be installed according to manufacturer guidelines, which may not always be at factory seams. Sectioning cut lines should also follow manufacturer recommendations, not left to technician discretion.

Question 16

A ____________________ joint can be either used with a backer or without.

Accepted Answer

The answer of A ____________________ joint can be either used...

Question 17

Safety glasses should be worn under a welder's helmet.

Accepted Answer

Safety glasses should be worn under a welder's helmet to provide additional protection for the eyes against flying debris and sparks.

Question 18

Ladder and ___________ are the most common types or design frames used on automobiles and trucks.

Accepted Answer

The answer of Ladder and ___________ are the most common...

Question 19

Welders should protect their skin from the welding light, which can cause burns.

Accepted Answer

Welding light emits high levels of ultraviolet and infrared radiation, which can lead to skin burns and damage. Welders should wear protective clothing and gear, such as a welding helmet with a tinted lens, to protect their skin from the welding light.

Question 20

Technician A says that making a repair plan is not necessary. Technician B says that even though a repair appears to be simple or even obvious, a repair plan forces the technician to precisely plan the procedure, thus making it more efficient. Who is correct?

Accepted Answer

Technician B is correct. Making a repair plan is necessary, even for simple repairs, as it helps the technician to plan the procedure and make it more efficient. A repair plan ensures that all steps are followed in the correct order, preventing mistakes and reducing the time needed to complete the repair. Therefore, Technician B's statement is correct, and Technician A's statement is incorrect.

Quiz 15: Welded Exterior Panel Replacement