CAE Automotive Systems & Design

Question 1

What is the primary function of a vehicle's differential?

Accepted Answer

Allow wheels to rotate at different speeds

Answer

The differential allows the drive wheels to rotate at different speeds during turns, improving handling and stability.

Question 2

Which component is responsible for converting chemical energy into mechanical energy in a car?

Accepted Answer

Engine

Answer

The engine combusts fuel to create mechanical energy that powers the vehicle.

Question 3

Why are disc brakes generally preferred over drum brakes in modern vehicles?

Accepted Answer

They offer superior heat dissipation and performance

Answer

Disc brakes dissipate heat more efficiently and provide better performance under repeated use.

Question 4

What role does the ECU (Engine Control Unit) play in a modern car?

Accepted Answer

Monitors and adjusts engine functions

Answer

The ECU manages engine performance by controlling fuel injection, ignition timing, and emissions systems.

Question 5

Why is aerodynamics important in automotive design?

Accepted Answer

To improve fuel efficiency and stability

Answer

Improving aerodynamics reduces air resistance, enhances fuel efficiency, and improves vehicle stability at high speeds.

(CAE) Certified Automotive Engineer Practice Test