23. For the block diagram of the input module shown in 23. Figure 2-2, Section #
ID: 3696195 • Letter: 2
Question
23. For the block diagram of the input module shown in 23.
Figure 2-2, Section #1 represents the ____ and #2 the ____.
a) AC, DC.
b) DC, AC.
c) power, logic.
d) logic, power.
Figure 2-2 Block diagram for question 23.
24-1. The schematic diagram of Figure 2-3 is that of a(n): 24-1.
a) discrete output module. c) discrete input module.
b) analog output module. d) analog input module.
24-2. The purpose of the filter section is to: 24-2.
a) aid in fault diagnosis.
b) set the minimum level of voltage that can be detected.
c) protect against electrical noise interference.
d) separate the higher line voltage from the logic circuits .
24-3 The purpose of the zener diode (ZD) is to: 24-3.
a) aid in fault diagnosis.
b) set the minimum level of voltage that can be detected.
c) protect against electrical noise interference.
d) separate the higher line voltage from the logic circuits .
24-4 The purpose of the LED indicator is to: 24-4.
a) aid in fault diagnosis.
b) set the minimum level of voltage that can be detected.
c) protect against electrical noise interference.
d) separate the higher line voltage from the logic circuits .
24-5 The purpose of the optical isolator is to 24-5.
a) aid in fault diagnosis.
b) set the minimum level of voltage that can be detected.
c) protect against electrical noise interference.
d) separate the higher line voltage from the logic circuits .
Figure 2-3 Schematic diagram for question 24.
Explanation / Answer
23)
It will take Ac power and then it convert and amplify into direct current DC.
so a) Ac, DC
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24-1)
b) analog output module
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24-2)
c) protect against electrical noise interference.
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24-3)
d) separate the higher line voltage from the logic circuits .
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24-4)
a) aid in fault diagonsis
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25-5)
c) protect against electrical noise interference
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