90
15. Technician A says that an advantage of disc wheels over cast spoke is that they
produce fewer wheel alignment problems. Technician B says that in stud-piloted disc
wheel systems, a loose inner nut can easily go undetected, eventually pounding out
the ball seat. Who is correct?
16. Which of the following is said to be an advantage of low-profile radial tires?
17. Technician A states that any tire that tests 50 percent or less of its specified pressure
should be removed from the truck and checked out in a safety cage. Technician B uses
a clip-on air chuck with a remote in-line valve and gauge to inflate tires on the
vehicle. Who is correct?
18. Technician A says that wheel axial runout on a cast spoke wheel can be eliminated
only by removing the wheel rims and breaking down the tires. Technician B adjusts
cast spoke wheel radial runout by chalk-marking high points, then loosening the lug
nuts on the chalk-marked side and tightening those 180 degrees opposite. Who is
correct?
19. What must be done to install a ConMet PreSet hub to an axle?
20. When using the TMC method of adjusting wheel bearings, endplay must be within
what range?