Give a brief overview of schematic diagrams.
What will be an ideal response?
Schematic diagrams are also known as line diagrams and ladder diagrams. Schematic diagrams show components in their electrical sequence without regard to physical location. Schematics are used more than any other type of diagram to connect or troubleshoot a control circuit.
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Refer to the figure above. The hand signal demonstrated means _____.
a. Emergency Stop b. Use auxiliary hoist (whipline) c. Travel/Tower travel d. Travel—Both Tracks (crawler crane)
The fractured surface of ____ cast iron has a light, almost white, thin rim around the dark gray center.
A. gray B. malleable C. white D. alloy
Fast-track construction is generally considered an economical way to design and erect steel-frame buildings. How is this economy achieved?
What will be an ideal response?
Technician A says steering effort imbalance on a power rack and pinion steering gear may be caused by worn rings on the rotary valve. Technician B says when turning the steering wheel to the right or left, low power steering assist may be caused by worn rings on the rotary valve. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B