Automation System
The refresh-vector CRT uses which of the following techniques?

None of these
The beam constantly travels across the screen to turn on/off a series of pixels.
Makes changes on the image by increasing the anode voltage.
Uses an electron gun to continuously flood the surface of the tube.
Creates images on the screen by scanning straight-line vectors between selected points.

ANSWER DOWNLOAD EXAMIANS APP

Automation System
An encoder:

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

ANSWER DOWNLOAD EXAMIANS APP

Automation System
A semi-continuous operation means:

each operation in a sequence is continuous, but subsequent operations in the sequence may be different.
a computer is a required part of the machine
None of these
coffee breaks are allowed for the operator
the operation is continuous each shift, but stops between shifts

ANSWER DOWNLOAD EXAMIANS APP