
EM1_212 - Nivelamento
Authored by George Azevedo
Instructional Technology, Mathematics, Physics
University
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1.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
2.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Considerando a figura, que mostra uma vida de comprimento L, apoiada em A e submetida a uma carga distribuída q, julgue o item a seguir.
(V ou F) Os diagramas 1 e 2 a seguir representam, de forma genérica, respectivamente o diagrama de momento fletor e o diagrama de esforço cortante, para a viga em questão.
3.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
4.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
A seguir são apresentados os perfis de algumas barras estruturais. As seções são simétricas em relação à linha neutra. Cada uma das barras possui altura h_n e todas elas tem a mesma área. A partir dessas informações e considerando a análise dos módulos de resistência a flexão de cada seção, julgue os itens subsecutivos.
(V ou F) Para seções retangulares de mesma área, a mais eficiente estruturalmente é a de maior altura h.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Considerando a viga apresentada com seu respectivo diagrama de esforço cortante, é possível afirmar que o diagrama de momento fletor
é igual a zero nos pontos A, C e D.
é uma função descontínua no trecho BC
possui valor máximo no ponto B sob a carga de 12,5 kN
possui a mesma direção e o mesmo sentido nos trechos AB e CD.
possui, no ponto C, valor igual à soma das áreas do trecho AB e BC, correspondente a -10 kN.m
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