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.

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.