建筑工程師專業(yè)技術(shù)理論考試單項(xiàng)選擇題每日一練(2019.10.25)

A.90
B.134
C.145
D.140

A.震動(dòng)
B.噪聲
C.大氣灰塵

A.F₁=0，F(xiàn)₂=0
B.F₁=Q，F(xiàn)₂=0
C.F₁=0，F(xiàn)₂=Q
D.F₁=Q，F(xiàn)₂=-Q

A.3
B.4
C.5
D.6

A.產(chǎn)生2%的塑性應(yīng)變所對(duì)應(yīng)的應(yīng)力值作為屈服極限；
B.產(chǎn)生0.02%的塑性應(yīng)變所對(duì)應(yīng)的應(yīng)力值作為屈服極限；
C.產(chǎn)生0.2%的塑性應(yīng)變所對(duì)應(yīng)的應(yīng)力值作為屈服極限；
D.產(chǎn)生0.2%的應(yīng)變所對(duì)應(yīng)的應(yīng)力值作為屈服極限。