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Each quiz has 10 multiple-choice questions.

Select the answer that considers correct.

Only after submit the quiz, the responses will be validated.

At the end of the quiz it is reported the result and the test summary.

A Grafcet initial situation is characterized by steps

Active at the final time

Deactivate at the initial time

Active at the initial time

Deactivate at the final time

When a transition is enabled and the associated condition is true, the transition is not cleared.

True

False

Two steps can be directly connected.

True

False

A macro-step is a representation of

a set of steps

the Grafcet state

all the logical conditions associated with the transitions

a succeeding steps and transitions

A transition-condition…

is always true

can not be time-dependent

can be time-dependent

is always enabled

How many rules define the GRAFCET evolution?

3 rules

4 rules

2 rules

5 rules

A transition-condition is

all the logical functions associated to each step

always true

all the logical functions associated to each transition

all the logical functions associated to each step and each transition

A pit step has only a transition immediate preceding.

True

False

The timed variables can be associated to…

steps or transitions

actions or transitions

transitions

steps

A transition-condition (receptivity) is every logical function associated to each

Step

Transition

Action

Structure

Universidade de Trás-os-Montes e Alto Douro Logotipo da UTAD

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