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- GRAFCET Elements
- Transition-Conditions
- Evolution Rules
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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.

What enables to perform the steps skip is

the interpretation of the transition-conditions

the step control

the Grafcet situation

none of the previous options

The timed variables can be associated to…

steps or transitions

actions or transitions

transitions

steps

A source transition does not have any immediate preceding step.

True

False

In Gracet when an action D is defined as D:=1, it means that that action stops being executed when the associated step is deactivated.

True

False

A transition-condition…

is always true

can not be time-dependent

can be time-dependent

is always enabled

Situation, is the Grafcet term used to designate a set of

transitions active in a given instant

steps non active in a given instant

steps active in a given instant

transition-conditions active in a given instant

GRAFCET abbreviation derives from

“GRAphe de Fonctionement Commande Étape-Transition”

“GRAphe Functionnel de Commande Étape-Transition”

“Graphe de AFCET”

“GRAphe de AF Commande Étape-Transition”

The steps skip is a particular case of …

AND-divergence

OR-divergence

AND-convergence

OR-convergence

How many transitions can a pit step have immediate preceding?

None

Two

One

Three or more

How many rules define the GRAFCET evolution?

3 rules

4 rules

2 rules

5 rules

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

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