Question 1

Which of the following are types of automation system.

Question 2

Reed switch is a type of contact sensor

Accepted Answer

true

Answer

false

Question 3

A through beam sensor is a type of contact sensor

Accepted Answer

false

Answer

true

Question 4

One of the main difference between relays and contactors is

Accepted Answer

Contactors have more contacts than relays

Answer

Relays have a bigger coil than contactors

Answer

Contactors are used for low AC loads while relays are used for larger AC loads

Answer

Contactors are used for DC loads while relays are used for AC loads

Question 5

The image shows an example of a ______________________ circuit

Accepted Answer

<P>Latching</P>

Answer

Timer Relay

Answer

<P>Switching </P>

Answer

Counter relay

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