Question

In a two-stroke piston-port engine, the transfer tube is used to transfer fuel from the

A. crankcase to the top of the combustion chamber.
B. intake port to the exhaust port.
C. cylinder to the carburetor.
D. the fuel tank to the piston.

Answer 1

The correct choice is letter A.

Step-by-step explanation:

The end of the power/exhaust stage is shown in Figure B. Remember that an opening in the crankcase leads to the transfer tube. As the fuel in the crankcase is compressed, it’s pressed out of the opening in the crankcase and into the transfer tube. When the piston reaches bottom dead center, the transfer port is finally uncovered and the fuel rushes into the combustion chamber at the top of the cylinder. The fuel coming into the combustion chamber pushes out the remaining exhaust gases. The piston then begins to rise, beginning another intake/compression stage.

Answer 2

A two stroke engine is a type of internal combustion engine. It is called two-stroke because the entire cycle is completed in two strokes of the piston during only one crankshaft revolution. Two stroke engines have a high power to weight ratio.
The transfer tube in a two-stroke piston engine is used to transfer fuel from the B. intake port to the exhaust port.