Notions
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- GRAFCET Elements
- Transition-Conditions
- Evolution Rules
Structures
- Elementary
- Sequences
- Selection of Sequences
- Backward Skip and Jump Skip
- Parallelism
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- Actions II
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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.

How many transitions can a pit step have immediate preceding?

None

Two

One

Three or more

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 transition is enabled if one its preceding steps is active.

True

False

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

True

False

The selection of sequence(s) is used when it is desired that the Grafcet evolves:

through one sequence

through one (or more) sequence(s)

through several sequences

through none sequence

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 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

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

Step

Transition

Action

Structure

The fundamental elements which constitute Grafcet are:

Transitions, Actions and Transition-Conditions

Steps, Transitions and Actions

Transitions, Steps and Direct Links

Transitions, Steps and Transition-Conditions

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

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