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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.

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

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

True

False

How many rules define the GRAFCET evolution?

3 rules

4 rules

2 rules

5 rules

The steps skip is a particular case of …

AND-divergence

OR-divergence

AND-convergence

OR-convergence

Grafcet evolution rule number 5 states that, when a step is simultaneously activated and deactivated it remains active!

True

False

A source transition does not have any immediate preceding step.

True

False

The timed variables can be associated to…

steps or transitions

actions or transitions

transitions

steps

In Grafcet which set of steps define the state of the automated system command part?

Macro-steps

Non active steps

Enclosing steps

Active steps

By Grafcet evolution rule number 4 several transitions which can be simultaneously cleared…

are cleared sequentially

are cleared simultaneously

just one is cleared

are not cleared

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

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

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