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- GRAFCET Elements
- Transition-Conditions
- Evolution Rules
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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.

A transition is enabled if one its preceding steps is active.

True

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.

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

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

How many rules define the GRAFCET evolution?

3 rules

4 rules

2 rules

5 rules

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

A predicate is a logical expression with one or more variables.

True

False

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

True

False

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

Step

Transition

Action

Structure

The timed variables can be associated to…

steps or transitions

actions or transitions

transitions

steps

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