Quiz 1 with correct answers

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Defense Acquisition University *

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EET231

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Computer Science

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Jan 9, 2024

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docx

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The address for the point on the I/O module would be: O:2/8 The Boolean equation for the logic represented in the ladder diagram can be expressed as: Y = (AB) + (ACD) + (DE) + (BCE) The bit status condition of the input device shown connected to address I:2/8 must be ___ to turn on output address O:3/6. 0 The address O:3/7 would be found on terminal ____ of an output module residing in slot ___ of the PLC chassis. 7, 3
The highlighted rungs in the program rung shown indicate: the instruction is true. A normally open limit switch is wired to an input module, and programmed using XIO instruction. The instruction will be true when: the limit switch is open Rung 2 will be True whenever: the pressure switch is closed. the selector switch is closed and rung 1 is True. The instruction at address B3:1/3 is associated with: an internal relay coil. If the XIC instruction at address I:1/3 is True:
output O:2/0 will also be True. When LS1 is actuated and LS2 is not: pilot light PL3 (O:2/7) is ON. Which one of the following timer parameters represents the value that increments as the timer is timing? Accumulated time Which one of the following timer parameters determines the accuracy of the timer? Time base. For the timer program shown, output B is switched ON when:
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input A is closed. The on-delay timer (TON) starts timing when the timer's: ladder rung switches from false to true. The off-delay timer (TOF) starts timing when the timer's: ladder rung switches from true to false. For the programmed timer circuit shown, the pilot light should come on: as soon as the switch is closed. for 15 seconds after the switch is opened. For the programmed timer circuit shown, assume the switch is closed for 5 seconds and then opened. After 12 seconds have elapsed motor(s) ____ will still be operating.
M3 For the program shown, the timer accumulated time is set to zero anytime: PB2 is closed. For the programmed timers shown, the output of timer T4:5 :
is pulsed on and off at 1-s intervals. Output PL2 will be energized: when the accumulated value equals the preset value. Assume the accumulated count is 100 and the following order of events then occurs: Exit switch input is actuated 20 times, Reset input is actuated 10 times, and Enter switch input is actuated 5 times. After this sequence, the accumulated count would be:
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5. The counter program shown is designed to: count beyond the maximum count allowed per counter. Output PL will be energized when:
the accumulated value of C5:0 reaches 32,000. If you wanted output PL to go on after a count of 40,000, you would change the preset count of C5:1 to: 8,000. When input PB2 is actuated:
output PL is switched off. counter C5:0 is reset. counter C5:1 is reset.
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