Automation System
A dc servo motor:

All of these
uses a variable dc voltage for speed control
None of these
uses a tachometer for speed feedback
can provide precise position control

ANSWER DOWNLOAD EXAMIANS APP

Automation System
A stepping motor;

None of these
can index positional movement.
has a commutator
is a good choice where continuous rotation is needed
has a speed proportional to voltage input

ANSWER DOWNLOAD EXAMIANS APP

Automation System
The SKETCHPAD system

is used for interactive Graphics
consisted of an cathode-ray oscilloscope driven by a Lincoln Tx2 computer where by graphical information was displayed on the screen.
is expensive because it is sophisticated and make demands on the power and resources of the computer.
All of these
None of these

ANSWER DOWNLOAD EXAMIANS APP