Technician a says that the piston's most important function is to transfer the force produced by the burning air-and-fuel mixture into usable power. technician b says that the piston size is used to form a seal between the piston and the cylinder walls. who is right?

a. technician b only
b. technician a only
c. both technicians a and b

Option B.

Technician A only

Step-by-step explanation:

Since we are talking about the most important function of a piston, the technician A is correct.

A piston is used to transfer force from expanding gas in the cylinder to the crankshaft , in an engine.

In a pump,  its purpose is compressing or ejecting the fluid in the cylinder.

Technician B is not correct, because piston rings are used for creating a seal between piston and cylinder walls.

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.