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Which of the following is not an internal component of a PLC$?$

A$)$ CPU

B$)$ PC $($personal computer$)$

C$)$ Input$/$output modules $($ports$)$

D$)$ Memory

Which symbol below is most often used as a stop switch?

D$)$ D

$.$ Which statement is true for the relay logic diagram shown below?

A$)$ LED D$1$ is always on$,$ whether PB$1$ is pressed or not.

B$)$ After pressing and holding PB$1,$ LED D$2$ is turned off.

C$)$ Without pressing PB$1,$ LED D$1$ is on$.$

D$)$ After pressing and holding PB$1,$ both LEDs are on$.$

Which of the following could be a typical resistance value for the coil of a relay?

A$)0$

B$)100k$

C$)400$

D$)($open$)$

Which statement is true in the circuit shown below?

A$)$ Without depressing any of the pushbuttons, the lamp is on$.$

B$)$ While depressing and holding both pushbuttons, the lamp is on$.$

C$)$ Depressing the NO pushbutton will not have any effect in the status of the lamp.

D$)$ All of the above.

$.$ Which of the following devices are output devices? Check all that applies.

An electric motor

A proximity sensor

A NO pushbutton

The coil of a relay

Which of the following is not an internal component of a PLC$?$

A$)$ CPU

B$)$ PC $($personal computer$)$

C$)$ Input$/$output modules $($ports$)$

D$)$ Memory

Which symbol below is most often used as a stop switch?

A$)A$

B$)B$

C$)$ C

D$)$ D

$.$ Which statement is true for the relay logic diagram shown below?

A$)$ LED D$1$ is always on$,$ whether PB$1$ is pressed or not.

B$)$ After pressing and holding PB$1,$ LED D$2$ is turned off.

C$)$ Without pressing PB$1,$ LED D$1$ is on$.$

D$)$ After pressing and holding PB$1,$ both LEDs are on$.$

Which of the following could be a typical resistance value for the coil of a relay?

A$)0$

B$)100k$

C$)400$

D$)($open$)$

Which statement is true in the circuit shown below?

A$)$ Without depressing any of the pushbuttons, the lamp is on$.$

B$)$ While depressing and holding both pushbuttons, the lamp is on$.$

C$)$ Depressing the NO pushbutton will not have any effect in the status of the lamp.

D$)$ All of the above.

$.$ Which of the following devices are output devices? Check all that applies.

An electric motor

A proximity sensor

A NO pushbutton

The coil of a relay