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Each quiz has 10 multiple-choice questions.

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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

Variable Xi represents a Boolean variable such that

if step Xi is active, then Xi=False

if step Xi is active, then Xi=True

if step Xi is deactivated, then Xi=True

if step Xi is deactivated, then Xi=False

The execution time of a continuous action

is equal to the activation time of the associated step.

is equal to the deactivation time of the associated step.

is larger than the activation time of the associated step.

is less than the time of activation of the associated step.

How many rules define the GRAFCET evolution?

3 rules

4 rules

2 rules

5 rules

A transition-condition…

is always true

can not be time-dependent

can be time-dependent

is always enabled

The timed variables can be associated to…

steps or transitions

actions or transitions

transitions

steps

The steps skip is a particular case of …

AND-divergence

OR-divergence

AND-convergence

OR-convergence

A source transition does not have any immediate preceding step.

True

False

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

True

False

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