While discussing manifolds, Technician A says that exhaust manifolds must carry very hot exhaust gases so they are usually made of cast iron. Technician B says that some manifolds are constructed of steel tubing. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Both statements by Technician A and Technician B are correct. Exhaust manifolds must withstand high temperatures and are often made of cast iron for its durability and heat resistance. However, some manifolds, especially in performance or specific applications, are made from steel tubing for weight reduction and improved exhaust flow.

While Discussing Manifolds, Technician a Says That Exhaust Manifolds Must