Automation System
Which of the following symbol modes are used to input of graphics to General CAD system?

Dimension and Alphanumeric mode
Arc and Circle mode
None of these
Live and Rectangle mode
All of these

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Automation System
Stepping motors:

can run at varying speeds
can be built to index different amounts by changing the pole configuration
All of these
can run both clockwise and counterclockwise
do not require commutators

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Automation System
Direct Numerical Control means:

using one computer to control several machines
using several computers to control one large machine
complete elimination of a need for a human operator.
eliminating computers from the manufacturing process
None of these

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