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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.

Several steps can be directly linked to a immediate succeeding transition through:

AND-junction

structural parallelism

sequence selection

AND-convergence

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

True

False

The OR divergence is represented by an horizontal line with one immediate preceding connection and

three connections immediate succeeding

one connection immediate succeeding

two connections immediate succeeding

two or more connections immediate succeeding

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

A transition-condition…

is always true

can not be time-dependent

can be time-dependent

is always enabled

A source transition does not have any immediate preceding step.

True

False

A transition to be enabled has to have all the immediate preceding steps active

True

False

A pit step has only a transition immediate preceding.

True

False

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

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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