Technician A that says free and positive are two types of valve rotators. Technician B says that valve grinding should start with truing the valve tip; then the face should be refinished. Who is right?
A) Technician A only B) Technician B only
C) Both technicians A and B D) Neither technician A nor B
Question 2
Wheel lug nuts should be tightened _________.
A) With an air impact wrench B) With a torque wrench
C) By hand, plus 1/4 turn D) By hand