Automation System
An encoder:

converts an input to a binary number
None of these
can have only four keys
converts a binary number to a decimal number.
is used to send telegraph signals

ANSWER DOWNLOAD EXAMIANS APP

Automation System
Light sensors:

never use infrared light as light source
come in a wide variety of mounting styles
cannot be used a s limit switches.
None of these
work in direct sunlight

ANSWER DOWNLOAD EXAMIANS APP

Automation System
Semiconductor devices:

have a very short infant mortality period
are less reliable than electro¬mechanical components
usually have a very short MTBF (mean time between failure)
All of these
None of these

ANSWER DOWNLOAD EXAMIANS APP

Automation System
If the transient response is under damped:

the value of the output will exceed the value of the input at times during the transient period
the present overshoot is zero
both a and b
None of these
steady-state will be reached faster than if the system is overdamped

ANSWER DOWNLOAD EXAMIANS APP