Notions
- Elementary
- GRAFCET Elements
- Transition-Conditions
- Evolution Rules
Structures
- Elementary
- Sequences
- Selection of Sequences
- Backward Skip and Jump Skip
- Parallelism
- Actions I
- Actions II
- Advanced
- Source and Pit
- Macro Steps
- Timers
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How-to

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.

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

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

A pit transition can have one or more steps immediate preceding.

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

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

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”

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

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

The steps skip is a particular case of …

AND-divergence

OR-divergence

AND-convergence

OR-convergence

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

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