Question 1

Technician A says the suspension parts for a unibody are mounted to the body structure. Technician B says an enclosed hat channel structure is used in areas where maximum strength is required. Who is correct?

Accepted Answer

Technician A is correct that the suspension parts for a unibody are mounted to the body structure. Technician B is also correct that an enclosed hat channel structure is used in areas where maximum strength is required. Therefore, both statements are correct.

Question 2

TENSILE STRENGTH: The strength or ____________________ of a piece of metal to resist ripping or tearing when a force of tension or pressure is applied to it.

Accepted Answer

ability

Question 3

Technician A says that manufacturers use plastic sandwiching as a means to enhance the strength of floor pan. Technician B says wood is also used for plastic sandwiching. Who is correct?

Accepted Answer

Both A and B are correct because manufacturers use plastic sandwiching to enhance the strength of the floor pan, and wood is also used for plastic sandwiching.

Question 4

At areas where additional strength is required, a lamination of multiple layers of steel is often robotically welded together using a ____________________ type resistance spot welding (STRSW) process.

Accepted Answer

The answer of At areas where additional strength is required,...

Question 5

Ladder frame is best suited for larger and heavier vehicles.

Accepted Answer

Ladder frame, also known as chassis frame, provides rigidity and strength to the vehicle, making it suitable for larger and heavier vehicles such as trucks and SUVs.

Question 6

Additional ridges are stamped into the passenger compartment and trunk floor to increase their strength.

Accepted Answer

Additional ridges are often stamped into the passenger compartment and trunk floor of a car to increase their structural strength and durability. This can help to reduce the risk of deformation, buckling, or collapse in the event of a collision or impact, which can be an important safety consideration for both drivers and passengers. These ridges can also help to distribute weight more evenly across the vehicle's frame, improving its stability and handling.

Question 7

A buckle in the center of the roof directly above the B - Pillar should be a tipoff to the estimator and the technician that additional damage was sustained to the roof's ____________________ structure as well.

Accepted Answer

The answer of A buckle in the center of the...

Question 8

Convolutions are formed into front rail members to reinforce them.

Accepted Answer

The answer of Convolutions are formed into front rail members...

Question 9

Technician A says the pillars supporting the roof of the car must be able to withstand at least two times the weight of the car. Technician B says the "A" pillar is sometimes reinforced with structural foam. Who is correct?

Accepted Answer

The answer of Technician A says the pillars supporting the...

Question 10

The vehicle weight of a unibody is heavier than the body over frame.

Accepted Answer

The body over frame design usually results in a heavier vehicle overall, since the frame and body are separate components that both contribute to the weight. Unibody design integrates the frame and body into a single structure, which typically results in a lighter vehicle.

Question 11

Insulation materials used in strategic locations to reduce the road noises normally transmitted into the passenger compartment are called Sound ____________________ Materials.

Accepted Answer

The answer of Insulation materials used in strategic locations to...

Question 12

Technician A says even though they are a unitized design some unibody vehicles utilize a stub frame under the front of the vehicle to attach the drive train. Technician B says the D pillar is found only on SUV's and vans. Who is correct?

Accepted Answer

The answer of Technician A says even though they are...

Question 13

Technician A says the effects of the collision energy travels throughout the vehicle when it is struck. Technician B says that enclosed box type construction is usually used throughout the length of the frame rails. Who is correct?

Accepted Answer

The answer of Technician A says the effects of the...

Question 14

Technician A says that manufacturers use foam to strengthen and reinforce some pillars. Technician B says the aerodynamics of a vehicle will not affect how fuel efficient it is. Who is correct?

Accepted Answer

Technician A is correct because manufacturers do indeed use foam to strengthen and reinforce some pillars in vehicles, adding rigidity and improving safety without significantly increasing weight. Technician B is incorrect because the aerodynamics of a vehicle significantly affect its fuel efficiency; better aerodynamics reduce air resistance, thereby improving fuel economy.

Question 15

Technician A says a hat channel is commonly used on the rear floor pan for reinforcement. Technician B says the aerospace industry borrows much of its safety technology from the automobile industry. Who is correct?

Accepted Answer

Technician A is correct because hat channels are indeed used in automotive construction, particularly for reinforcement in areas like the rear floor pan. Technician B's statement is incorrect; it's more common for the automobile industry to borrow safety technologies from the aerospace industry, not the other way around.

Question 16

A reinforced area incorporated into the front inner rails used to attach the upper parts of the struts for the suspension system on the unibody is called a Shock or Strut ____________________.

Accepted Answer

The answer of A reinforced area incorporated into the front...

Question 17

Technician A says a unibody design is usually a rear wheel drive. Technician B says that in a rear wheel drive vehicle the engine and transaxle may be mounted transversely. Who is correct?

Accepted Answer

Unibody designs are not typically associated with a specific drive type (rear or front-wheel drive); they refer to the construction method where the body and frame are a single piece. Rear-wheel drive vehicles usually have the engine and transmission mounted longitudinally, not transversely, which is more common in front-wheel drive vehicles.

Question 18

Technician A says lateral stiffeners are sometimes welded into the floor pan for reinforcement. Technician B says the perimeter frame is most often used for trucks. Who is correct?

Accepted Answer

The answer of Technician A says lateral stiffeners are sometimes...

Question 19

Technician A says the weight distribution of a unibody is approximately 40% at the front and 60% at the rear of the vehicle. Technician B says stress risers convolutions, and kick-ups are all used in areas where controlled damage is required. Who is correct?

Accepted Answer

Technician B is correct because stress risers, convolutions, and kick-ups are indeed used in areas where controlled damage is required to manage crash energy. Technician A is incorrect because the typical weight distribution for a unibody vehicle is closer to 60% at the front and 40% at the rear, not the other way around.

Question 20

The body over frame vehicle was the most popular design in the U.S. for both cars and trucks prior to the introduction of the unibody.

Accepted Answer

This is true. The body over frame design had been popular since the early days of automobiles and was eventually replaced by the unibody design in the 1960s and 1970s.

Quiz 6: Vehicle Construction