1, what meant by TDC
A, The extreme top position up
B, bottom dead center
C, The extreme bottom up
D, all
2, one of the following statement is true about classification of modern automoblies
A, source of energy
B, Engine construction
C, Application
D, all
3,________ is the vehicle's main source of power ?
A, transmission
B,Engine
C,steering system
D, suspension system
Choose the best answer and their explanitation
1. B, bottom dead center - This refers to the position of a piston in an internal combustion engine where it is at its lowest point in the cylinder.
2. D, all - The classification of modern automobiles can be based on a variety of factors including the source of energy (such as gasoline, electric, or hybrid), engine construction (such as gasoline, diesel, or rotary), and application (such as sedans, SUVs, or trucks).
3. B, Engine - The engine is the primary source of power in a vehicle. It converts fuel into mechanical energy that drives the wheels and propels the vehicle forward.