Question

1. by far the most common internal - combustion engine is the _______________

gasoline engine.

1. name the four strokes of the four cycle engine. _____________________

_____________ _________________ ___________________

1. list five internal combustion engines. ____________ _____________

_____________ _________________ ___________________

1. a spark ignites the compressed fuel air mixture during the ____________ stroke.
2. the fuel air mixture enters the cylinder during the __________________ stroke.
3. burned gases are pushed out during the _____________________ stroke.

Explanation:

Question 1

The most common internal - combustion engine is the reciprocating piston engine (the gasoline engine is a type of reciprocating piston internal - combustion engine, and among internal - combustion engines, the reciprocating piston engine with gasoline as fuel is very common).

In a four - cycle (four - stroke) engine, the four strokes are intake (where the fuel - air mixture enters the cylinder), compression (where the fuel - air mixture is compressed), power (where the spark ignites the mixture and power is produced), and exhaust (where the burned gases are expelled).

Internal combustion engines can be classified into different types. Some common ones are gasoline engine (uses gasoline as fuel), diesel engine (uses diesel fuel), gas turbine engine (operates on the principle of gas expansion), rotary engine (has a different rotor - based design), and two - stroke engine (completes a cycle in two strokes).

Answer:

reciprocating piston engine (or gasoline engine can also be filled here as per the context, but more accurately, the most common internal - combustion engine type that the gasoline engine belongs to is the reciprocating piston engine)

Question 2