AOPA口试选择题解析与答案:遥控器与电池知识

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本资源是一份针对AOPA(美国航空私用驾驶员协会)口试的选择题集及其答案,涵盖了遥控器操作和电池管理两个核心知识点。以下是详细解析: **遥控器部分:** 1. 遥控器操作灵敏度的调整通常通过“行程比例”或“通道速度”功能,其中B.行程比例是正确的,它允许改变不同通道的输入范围,从而影响飞行的灵敏度。 2. 在多旋翼无人机起降时,THROTTLE(油门)通道控制的是上升和下降的推力,而ELEVATION(俯仰)通道控制的是前后或者俯仰姿态,所以A. THR(上升、下降)ELE(前后、俯仰)是正确的。 3. AIL(横滚)通道负责左右移动,RUD(副翼或航向)通道控制的是左右水平旋转,因此正确答案是A. AIL(左、右移动)RUD(左、右水平旋转)。 4. FAILSAFE功能设定在遥控器中通常指失控保护,当无人机超出预设范围或失去连接时,会自动执行预设的恢复动作,避免坠机,所以C.失控保护是正确的。 5. SUBTRIM代表中立微调,它用来修正遥控器的零位偏移,确保飞机在无信号输入时保持平衡,故B.中立微调正确。 **电池部分:** 1. 聚合物锂电池长时间储存时,为了延长电池寿命,单片电压一般维持在3.7V,所以C.3.7V是正确选项。 2. 6S 5000mAh 20C(3C)锂电池的最大放电电流是其标称容量乘以倍率,即5000mAh * 20 = 100A,因此A.30A是正确答案。 3. 在能量密度方面,锂聚合物电池通常比镍氢电池和铅酸电池高,因此A.锂聚合物电池是最大能量密度的。 4. 并联电池后电压等于单片电压,10000mAh/6S电池并联后电压为22.2V,所以B.22.2V是正确的。 5. 6S1P电池并联后,每块电池的最大放电电流不变,仍为原单片的20C,即10000mah * 20C = 200A,选A.200A。 6. 对于10000mAh/6S/15C的电池,安全充电电流不应超过15C,即10000mah * 15 = 150A,所以A.150A正确。 7. 成品Lipo 6S1P 12000mah 30C电池的单片电芯容量为12000mAh,A选项正确。关于电压保存,一般建议在满充后的22.8V-23.4V范围内长期储存。 8. 10000mah/6S/25C(3C)电池的最大充电电流应为25C,即10000mah * 25 = 250A,但选项没有提供250A,所以可能是题目错误,实际应该是30A,选B.30A。 9. 单片电芯容量同上,为12000mAh;长期保存的电压范围为22.8V-23.4V,A选项正确。 这份资料提供了遥控器操作技巧和电池维护知识,对于准备AOPA口试的学员来说,理解和掌握这些内容非常重要。

java.lang.NullPointerException: null at com.datech.web.controller.system.TbappController.remove(TbappController.java:667) at com.datech.web.controller.system.TbappController$$FastClassBySpringCGLIB$$ea1c3ba.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) at org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:55) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) at org.apache.shiro.spring.security.interceptor.AopAllianceAnnotationsAuthorizingMethodInterceptor$1.proceed(AopAllianceAnnotationsAuthorizingMethodInterceptor.java:82) at org.apache.shiro.authz.aop.AuthorizingMethodInterceptor.invoke(AuthorizingMethodInterceptor.java:39) at org.apache.shiro.spring.security.interceptor.AopAllianceAnnotationsAuthorizingMethodInterceptor.invoke(AopAllianceAnnotationsAuthorizingMethodInterceptor.java:115) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691) at com.datech.web.controller.system.TbappController$$EnhancerBySpringCGLIB$$b3b02033.remove(<generated>) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

2023-07-14 上传

Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.redisson.spring.data.connection.RedissonConnection at org.redisson.spring.data.connection.RedissonConnectionFactory.getConnection(RedissonConnectionFactory.java:113) at org.springframework.data.redis.core.RedisConnectionUtils.fetchConnection(RedisConnectionUtils.java:193) at org.springframework.data.redis.core.RedisConnectionUtils.doGetConnection(RedisConnectionUtils.java:144) at org.springframework.data.redis.core.RedisConnectionUtils.getConnection(RedisConnectionUtils.java:105) at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:211) at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:191) at org.springframework.data.redis.core.AbstractOperations.execute(AbstractOperations.java:97) at org.springframework.data.redis.core.DefaultHashOperations.get(DefaultHashOperations.java:55) at com.million.mes.basic.commonredis.server.RedisService.getCacheMapValue(RedisService.java:231) at com.million.mes.basic.dbapi.service.DataSourceService.detail(DataSourceService.java:96) at com.million.mes.basic.dbapi.service.DataSourceService$$FastClassBySpringCGLIB$$f8f33523.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:793) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763) at com.baomidou.dynamic.datasource.aop.DynamicDataSourceAnnotationInterceptor.invoke(DynamicDataSourceAnnotationInterceptor.java:50) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:708)

2023-06-12 上传

com.cxm.common.exception.CxmServiceException: 获取日结单数据出错 at com.cxm.service.report.DailyStatManager.reconciliationIndex(DailyStatManager.java:203) at com.cxm.api.report.DailyStatApi.reconciliationIndex(DailyStatApi.java:102) at com.cxm.api.report.DailyStatApi$$FastClassBySpringCGLIB$$4bcc5350.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:769) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747) at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:88) at com.cxm.log.CxmLogbackAspect.doAround(CxmLogbackAspect.java:98) at sun.reflect.GeneratedMethodAccessor365.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633) at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)

2023-06-01 上传