Question

technician a says that the engine with the same size bore and stroke is referred to as an interference engine. technician b says that stroke is the distance the piston travels from top dead center (tdc) to bottom dead center (bdc). who is correct?

a. technician a

b. technician b

c. both technician a and technician b

d. neither technician a nor technician b

Explanation:

• For Technician A: An engine with the same bore (diameter of cylinder) and stroke (piston travel distance) is a "square engine", while an interference engine refers to valve - piston interference during timing belt failure. So Technician A is incorrect.
• For Technician B: The definition of stroke is the distance the piston travels from top dead center (TDC) to bottom dead center (BDC), so Technician B is correct.

Answer:

b. Technician B