CAADE Vehicle Construction and Parts 2

Question 1

Which structural component connects the vehicle's body to the suspension and engine cradle in a unibody vehicle?

Accepted Answer

Subframe

Answer

A subframe is a separate structural unit bolted to the unibody that supports the engine, transmission, and front suspension components.

Question 2

What is the primary function of a vehicle's rocker panel?

Accepted Answer

Reinforces the door sill area and contributes to overall structural rigidity

Answer

Rocker panels run along the lower sides of the vehicle between the front and rear wheel wells, providing critical structural reinforcement to the sill area.

Question 3

In modern vehicle construction, what material is commonly used in B-pillars to provide side-impact protection?

Accepted Answer

Boron steel or ultra-high-strength steel (UHSS)

Answer

Boron steel and ultra-high-strength steel are used in B-pillars because their extremely high tensile strength resists intrusion during side-impact collisions.

Question 4

What does the term 'crush zone' refer to in vehicle construction?

Accepted Answer

A designated crumple region engineered to absorb collision energy

Answer

Crush zones are engineered to deform in a controlled manner during a collision, absorbing kinetic energy before it reaches the passenger compartment.

Question 5

Which type of welding joint is most commonly found where the roof panel meets the A-pillar?

Accepted Answer

Spot weld

Answer

Spot welds are the factory-standard method for joining roof panels to pillars, creating discrete weld nuggets through resistance welding.

(CAADE) Certified Automotive Appraisal and Damage Estimator Practice Test

(CAADE) Certified Automotive Appraisal and Damage Estimator Practice Test

CAADE Vehicle Construction and Parts 2