Automation System
Stepping motors:

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

ANSWER DOWNLOAD EXAMIANS APP

Automation System
Programmable controllers:

are programmed using relay ladder logic
are widely used in many different industries
(a) and (c) above
cannot perform functions other than relay logic
None of these

ANSWER DOWNLOAD EXAMIANS APP