题目内容（请给出正确答案）

[主观题]

a steel bar of rectangular cross section （a = 38 mm, b = 50 mm) carries a tensile load p.

A steel bar of rectangular cross section (a = 38 mm, b = 50 mm) carries a tensile load P. The allowable stresses in tension and shear are 100 MPa and 48 MPa, respectively. The maximum permissible load Pmax is approximately:

A、56 kN

B、62 kN

C、74 kN

D、91 kN

提问人：网友huangjic 发布时间：2022-01-07

参考答案

抱歉！暂无答案，正在努力更新中……

如搜索结果不匹配，请联系老师获取答案

您可能会需要：

重置密码查看订单联系客服

安装简答题APP，拍照搜题省时又省心！

更多“a steel bar of rectangular cro…”相关的问题

第1题

A steel bar is suspended by steel cables as shown. What type of deformation does segment AB of the bar undergo？

A、uniaxial compression

B、pure bending

C、combination of bending and tension

D、combination of bending and compression

点击查看答案

第2题

One wooden bar and one steel bar have the same cross section. If the external forces on these two bars are the same, then the internal forces in these two bars should be also the same.

点击查看答案

第3题

An polyethylene bar（E =1.4 GPa, [图]) of diameter ...

An polyethylene bar(E =1.4 GPa,) of diameter 80 mm is inserted in a steel tube of inside diameter 80.2 mm and then compressed by axial force P. The gap between steel tube and polyethylene bar will close when compressive load P is approximately:

A、18 kN

B、25 kN

C、44 kN

D、60 kN

点击查看答案

第4题

A slender bar with mass [图] is composed of two ho...

A slender bar with massis composed of two homogeneous segments, which are made of steel and wood, respectively. The mass moment of inertia of bar about-,- and-axes are,and, respectively. Then we can get

A、

B、

C、

D、

点击查看答案

第5题

A heavy steel curved arch constructed athwartships and above the after deck on a towing ve

ssel is sometimes called a ______.

A.main brace

B.tow span

C.jockey bar

D.None of the above

点击查看答案

第6题

In nautical terminology a dog is a ______．A.Crow barB.Device to force a water tight door a

In nautical terminology a dog is a ______．

A.Crow bar

B.Device to force a water tight door against the frame

C.Heavy steel beam

D.Wedge

点击查看答案

第7题

a steel plane truss is loaded at b and c by forces p = 200 kn . the cross-sectional area of each member is a = 3970

A steel plane truss is loaded at B and C by forces P = 200 kN . The cross-sectional area of each member is A = 3970. Truss dimensions are H= 3 m and L = 4 m . The maximum shear stress in bar AB is approximately:

A、27 MPa

B、33 MPa

C、50 MPa

D、69 MPa

点击查看答案

第8题

一条Ф1220mm的气管，输气压力若从54bar提高到98bar，输量可提高1倍；单位输气能力的用钢量，后者为

前者的0.87；单位输气能力的投资，后者为前者的0.62。 A 1220 mm Ф trachea, if gas pressure increased from 54 bar to 98 bar, throughput can be improved 1 times;The amount of steel used per unit gas transmission capacity is 0.87 of the former.The investment of unit gas transmission capacity, the latter is 0.62 of the former.

点击查看答案

第9题

the structure of maintaining the high osmolarity in the renal medulla is

A、proximal tubule

B、distal convuluted tubule

C、Henle's loop

D、vasa recta

E、collect duct

点击查看答案

第10题

The important structure forming high osmolarity in renal medulla is

A、Proximal tubule