When two cams of the same diameter, one with tangential flanks and the other with convex flanks are compared, the cam with tangential flanks will cause___________.

Correct Answer: Option D — less valve gear wear

Cams designed with tangential flanks provide a smoother transition from the base circle to the lift profile, reducing mechanical shock loads and impact forces. Consequently, this geometry minimizes wear across the entire valve gear train compared to aggressive convex flank designs.