Helical gearing:
A. Has teeth that are cut straight across the face, perpendicular to the edge.
B. Is relatively noisy.
C. Can be used only on parallel shafts.
D. None of the above.
D
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____ is the darkening or lightening of a hue.
A. Contrast B. Value C. Saturation D. Brightness
Pipe threads are standardized by the A.N.S. A.N.S. stands for ____.
A. All Nominal Standard B. American National Standard C. All New Steel D. Apparent Nominal Standard
The addition of a(n) ____ to the jog circuit eliminates the problem of the holding contacts making connection before the normally closed section of the jog push button reconnects.
A. control relay B. flow switch C. varistor D. M coil
Current flow occurs only if the external voltage is ____ the barrier voltage.
A. equal to B. less than C. greater than D. not equal to