A) Accumulated time.
B) Preset time.
C) Timer address.
D) Time base.
Correct Answer
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Multiple Choice
A) PB1 is closed.
B) PB2 is closed.
C) PB1 is open.
D) PB2 is open.
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Multiple Choice
A) TON timer can maintain its accumulated time on loss of power or logic continuity.
B) TOF timer can maintain its accumulated time on loss of power or logic continuity.
C) TOF timer begins timing when logic continuity to the timing rung is lost.
D) TON timer begins timing when logic continuity to the timing rung is lost.
Correct Answer
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True/False
Correct Answer
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Multiple Choice
A) ON, OFF
B) OFF, ON
C) instantaneous, timed
D) timed, instantaneous
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Multiple Choice
A) continuous
B) holding
C) retentive
D) saved
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Multiple Choice
A) ladder rung switches from false to true.
B) ladder rung switches from true to false.
C) accumulated value equals its preset value.
D) accumulated value is greater than its preset value.
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Multiple Choice
A) as soon as the switch is closed.
B) before the switch is closed.
C) for 15 seconds after the switch is opened.
D) as soon as the switch is closed and for 15 seconds after the switch is opened.
Correct Answer
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Multiple Choice
A) TOF timers
B) TON timers
C) RTO timers
D) all of these
Correct Answer
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Multiple Choice
A) when the relay coil is energized, there is a time delay in closing.
B) when the relay coil is energized, there is a time delay in opening.
C) when the relay coil is de-energized, there is a time delay before the contact opens.
D) when the relay coil is de-energized, there is a time delay before the contact closes.
Correct Answer
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