189) The tilting of the front wheels away from the vertical, when viewed from the front of the car is called

Answer is:

camber

Automobile Engineering MCQ with Answers

190) When the top of the wheel is tilted outward, then it is called

Answer is:

positive camber

Explanation:

Camber angle is the angle made by the wheels of a vehicle; specifically, it is the angle between the vertical axis of the wheels used for steering and the vertical axis of the vehicle when viewed from the front or rear. It is used in the design of steering and suspension.
When the top of the wheel is tilted outward, then it is called positive camber.