28. Which of the following devices can be used for switching 28. the output of a

ID: 2314644 • Letter: 2

Question

28. Which of the following devices can be used for switching 28.

the output of a discrete DC output module?

a) Transistor. c) relay.

b) Triac. d) either a or c.

29. The current sourcing sensor shown in Figure 2-7 29.

must be matched with a _____ PLC input module.

a) current sinking.

b) current sourcing.

c) alternating current.

d) either a or b.

Figure 2-7 Current sourcing sensor for question 29.

31. For the block diagram of the analog PLC control 31.

shown in Figure 2-8, which part has a binary

input and analog output value?

a) Level transmitter c) Processor

b) Input module d) Output module

Figure 2-8 Block diagram for question 31.

28) either a or c

29) current sinking

31) output module

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