Two technicians are discussing the use of aluminum in diesel engine blocks. Technician A says that aluminum has an expansion coefficient ten times the rate of iron. Technician B says that aluminum also has challenges in diesel application in terms of rigidity, strength, and reliable bolting of the cylinder head and main bearings. Who is right?
A)A only"
B)B only"
C)Both A and B
D)Neither A nor B"

Question

Quizplus · Accepted Answer

Aluminum does have a higher expansion coefficient than iron, but it is not ten times greater. Technician B is correct about the challenges of using aluminum in diesel engines.

Two Technicians Are Discussing the Use of Aluminum in Diesel