Technician A says anti-vibration devices only need to be used when resurfacing drums. Technician B says composite brake rotors require special adapters when mounted on a bench lathe for resurfacing. Which technician is correct?
A) Technician A only B) Technician B only
C) Both technicians A and B D) Neither technician A nor B
C
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Moving a conductor through a magnetic field will produce:
A. DC voltage B. AC voltage C. Electrical resistance D. None of the above
Problem Statement
(a) Determine the reactions and all bar forces of the three-hinged, trussed arch in Figure P6.27 for the following cases:
Case A: Only the 90-kN force at joint D acts.
Case B: Both the 90-kN and 60-kN forces at joints D and M act.
(b) Determine the maximum axial force in the arch in Case B.
Construct a 95% confidence interval for the population variance 
if a sample of size 25 has standard deviation s=15.
What will be an ideal response?
Safety glasses are worn whenever servicing AC components
Indicate whether the statement is true or false