单选题跨度很短的梁,当有较大的载荷作用在支座附近时,应进行()校核。A正应力强度校核B剪应力强度核核CA和BDA或B
单选题
跨度很短的梁,当有较大的载荷作用在支座附近时,应进行()校核。
A
正应力强度校核
B
剪应力强度核核
C
A和B
D
A或B
参考解析
解析:
暂无解析
相关考题:
单选题No person may serve as the person in charge of both the vessel and the facility during oil transfer operations unless().Athere is ready access between the twoBthe vessel and facility are immediately adjacentCthe person in charge has a rapid means of transportation between the twoDthe Captain of the Port authorizes such procedure
单选题Improper cooling of a diesel engine cylinder liner due to the accumulation of scale deposits may cause ().Alow compression pressureBincreased piston wearCincreased cylinder lube oil consumptionDpoor contact between compression rings and liner
单选题用ARPA矢量时间可调的功能,在估计碰撞危险时,下述哪种情况有碰撞危险: ()A本船相对矢量与目标相对矢量相交B本船真矢量与目标真矢量相交C本船真矢量与目标真矢量的矢端重迭D本船相对矢量与目标相对矢量的矢端重迭
单选题当船舶在狭窄水道或进出港航行中突然失电时,应()。 Ⅰ、迅速启动备用发电机组尽快恢复供电,同时电告驾驶台并停主机; Ⅱ、在应急处理过程中必须有人监守主机操纵台; Ⅲ、若情况危急船长必须用车,可按车令执行不必考虑后果。AⅠ+ⅡBⅠ+ⅢCⅡ+ⅢDⅠ+Ⅱ+Ⅲ
单选题在狭水道或航道内追越,追越船的驾驶员应意识到下列哪些危险?() Ⅰ、与他船靠得太近而引起的碰撞危险 Ⅱ、与他船间的船吸作用致使一船朝另一船方向偏转而导致碰撞 Ⅲ、因岸吸岸推作用而造成碰撞AⅠBⅠ、ⅡCⅡ、ⅢDⅠ、Ⅱ、Ⅲ
单选题汽轮机动力装置的优点是()。 Ⅰ.运转平稳、振动轻、噪声小; Ⅱ.单机功率大; Ⅲ.燃用劣质油成本低; Ⅳ.功率范围覆盖面大; Ⅴ.摩擦、磨损小。AⅠ+ⅡBⅠ~ⅤCⅠ+Ⅱ+Ⅳ+ⅤDⅠ+Ⅱ+Ⅲ+Ⅴ
单选题The line connecting the Loran-C master station with a secondary station is called the().AFocus lineBBase lineCSide lineDCenter line
单选题对于圆筒形薄壁容器()。A切向应力是轴向应力的二倍,一般都是纵向破裂B切向应力是轴向应力的一半,一般都是横向破裂C切向应力是轴向应力的二倍,一般都是横向破裂D切向应力基轴向应力的一半,一般都是纵向破裂
单选题()is where the crew eat their meals.AThe funnelBThe messroomCThe galleyDThe satellite antenna
单选题轮机部向公司主管部门送报下列()内容Ⅰ.各种机务报表和维修保养计划执行情况报表Ⅱ.机舱备件、物料的申领、入库、消耗和库存报表Ⅲ.机电动力设备事故报告Ⅳ.有关船机状态的报告Ⅴ.有关设备安全和性能的特殊情况报告AⅠ+Ⅱ+ⅣBⅠ+Ⅱ+Ⅲ+ⅣCⅠ+Ⅱ+Ⅲ+Ⅳ+ⅤDⅢ+Ⅴ
单选题动画文件辅机外啮合齿轮泵。动画演示的是外啮合正齿轮泵工作过程。为了解决困油现象,在泵的端盖上开设了两个矩形槽,如动画中半透明矩形所示,请问这两个槽称为();为了更好地解决困油现象,这两个槽可以向()侧移适当距离。A卸荷/左B均压/左C均压/右D卸荷/右