单选题在1千米以下近地层大气中,高度每下降10米()A气压升高1.3百帕B气压升高1百帕C气压下降1.3百帕D气压下降1百帕
单选题
在1千米以下近地层大气中,高度每下降10米()
A
气压升高1.3百帕
B
气压升高1百帕
C
气压下降1.3百帕
D
气压下降1百帕
参考解析
解析:
暂无解析
相关考题:
单选题A container with high cube would most likely be used to stow().Adense bulk cargoesBhousehold appliancesCfragile cargoesDheavy industrial machinery
单选题带缆作业的安全工作注意事项:()(1)严格操作规程;(2)做好各项准备工作;(3)选择好人员的站立位置;(4)绞缆时的速度听从指挥注意松紧;(5)注意各缆受力应均匀;(6)做好自身防护工作。A(1)~(6)B(1)~(5)C(1)~(4)D(1)~(2)
单选题《IM0稳性规则》中规定:船舶受稳定横风作用时的风压倾侧力矩可用公式Mw=PwAwZw来计算,其中Zw是指()。AAw的中心至水下侧面积中心的垂直距离BAw的中心至船舶水线的垂直距离CAw的中心至船舶水线的垂直距离DAw的中心至船舶吃水的一半处的垂直距离
单选题Under the forces of its own weight,the suspended length of line will fall into a shape known as a().ApolygonBholding arcCcatenary curveDparabolic curve
单选题Turbulence is created in the cylinders of a diesel engine to ()Aobtain injection lagBhelp mix fuel and airCincrease combustion pressureDutilize higher injection pressures
单选题The following engine parts are found damaged and we are about to () compensation from the shipyard.Aclaim toBclaiming toCclaim forDclaiming for
单选题有关驾驶员值班交接,下列哪些不属于航行环境的交接:() Ⅰ、在驾驶台控制主机时的主机操作程序和使用方法 Ⅱ、船长对船舶航行有关的常规命令和其他特别指示 Ⅲ、船位、航向、航速AⅠ、ⅡBⅠ、Ⅱ、ⅢCⅠ、ⅢDⅡ、Ⅲ
单选题关于电动锚机的下列说法,正确的是()。A锚机电动机堵转矩一定要小于其额定转矩,否则堵转时烧电动机B锚机电动机能在最大负载力矩下起动C锚机电动机最多能在堵转下工作30sD锚机电动机属于恒定转速电机
单选题During fueling,all doors,hatches,and ports().Ato windward should be opened and the ones to leeward should be closedBto leeward should be opened and the ones to windward should be closedCshould be openedDshould be closed
单选题What must the Master or person in charge of a ship enter in the logbook after conducting a boat drill? ()AWhich survival craft was used in the drillBThe number of each lifeboat not lowered during each drillCOnly the number of each motor propelled lifeboat that is loweredDThe length of time an oar propelled lifeboat is rowed
单选题型宽是指()A在船长中点处,由一舷的肋骨外缘量至另一舷的肋骨外缘之间的水平距离B在船体最宽处,由一舷船壳板内缘量至另一舷船壳板内缘之间的水平距离C在船体最宽处,由一舷的肋骨外缘量至另一舷的肋骨外缘之间的水平距离DB或C
单选题在讨论并联运行同步发电机调速器的调速特性时,下列说法正确的是()。A若调速特性均为有差特性,当电网负荷变化时,能自动地、稳定地分配有功功率,两机组能稳定并联运行B若调速特性均为无差特性的同步发电机能并联运行,并可保证两机组有功功率分配始终均匀C若一台具有有差特性与另一台具有无差特性发电机并联运行,当负荷变化时,由于系统的频率不变,可以保证负荷的均匀分配D为了使负荷变化时,并联运行发电机稳定运行,两组机组调速特性的斜率相差大些为好
单选题All ships()suspected infectious disease on board should radio information to Port Health Officer.AwithBhasChaveDhad
单选题按测振仪的工作原理可以分为(),柴油机振动测量所使用的测振仪主要是()。A位移计、速度计、加速度计/加速度计B机械式、光学式和电气式/电气式C机械式、光学式/光学式D测峰值的、测有效值的/测有效值的