大工20秋《水利水能规划》在线作业1答案
大工20秋《水利水能规划》在线作业2答案

(判断题)1: 水文频率计算中配线时,随着Cv的增大,频率曲线显得越来越陡。
A: 错误
B: 正确
正确答案: B
(判断题)2: 水利工程中经济计算的基准年只能选择在施工期的第一年。
A: 错误
B: 正确
正确答案: A
(判断题)3: 洪水调节的瞬态法比较简便,宜于手算。
A: 错误
B: 正确
正确答案: B
(判断题)4: 坝式水电站水头相对小,投资小,工期短。
A: 错误
B: 正确
正确答案: A
(判断题)5: 同倍比法不能同时满足设计洪峰、设计峰量具有相同频率。
A: 错误
B: 正确
正确答案: B
(判断题)6: 资金是动态的,具有时间价值。
A: 错误
B: 正确
正确答案: B
(判断题)7: 基准年一般可选于施工期的任何时刻,都很便利。
A: 错误
B: 正确
正确答案: A
(判断题)8: 若水库不需要承担下游防洪任务,则洪水期下泄流量可不受限制。
A: 错误
B: 正确
正确答案: B
(判断题)9: 坝式(抬水式)水能资源开发方式的水能资源利用率低,基建工程大,会形成淹没。
A: 错误
B: 正确。
大工20春《水利水能规划》在线作业1

5.同一设计频率情况下,入库设计洪水比坝址设计洪水洪峰增大,峰现时间提前。 A.正确 B.错误 参考答案:A
6.特大洪水是指实测系列和调查到的历史洪水中,比一般洪水大得多的稀遇洪水。 A.正确 B.错误 参考答案:A
大工20春《水利水能规划》在线作业1
一、判断题 1.在正常运用的情况下,允许水库消落的最低水位称为防洪限制水位。 A.正确 B.错误 参考答案:B
2.随机事件的概率介于0与1之间。 A.正确 B.错误 参考答案:A
3.两变量相关程度密切与否,一般用相关系数表示,r=1时,说明两个向量正相关。 A.正确 B.错误 参考答案:B
三、多选题 1.国民收入能比较确切地综合反映社会生产的()等情况。 A.发展速度 B.规模 C.结构 D.增产节约 参考答案:ABCD
2.调洪计算的解法,一般包括()。 A.瞬态法 B.数值解法 C.图解法 D.半图解法 参考答案:ABCD
3.我国的水资源问题主要有()。 A.供需矛盾大 B.洪涝灾害重 C.水环境恶化 D.水土流失加剧 参考答案:ABCD
4.对计划兴建的水利工程,在做好勘测、规划、设计的基础上才能确定其方案,方案的确定应满足 ()。 A.技术正确 B.经济合理 C.财务可行 D.施工简单 参考答案:ABC
5.水库兴利调节按调节周期分为()。 A.日调节 B.周调节 C.年调节 D.
二、单选题 1.分期设计洪水时应尽可能根据不同成因的洪水,把全年划分为若干分期。 分期不宜过短,一般应 不短于()。 A.1天 B.1周 C.1月 D.1年 参考答案:C
2.与水资源的利用关系密切的主要部门,不包括下列()。 A.发电与灌溉 B.航运 C.防洪治涝 D.工商管理 参考答案:D
大工20秋《水利水能规划》在线作业1答案

大工20秋《水利水能规划》在线作业1答案(判断题)1:水库调节周期是指水库的兴利库容从XXX-蓄满-放空的完整的蓄放过程。
A:错误B:正确正确答案: B(判断题)2:为了充分利用水能资源,无调节水电站应该尽可能承担电力系统的基荷。
A:错误B:正确正确答案: B(判断题)3:一场降雨洪水的径流深为这场洪水流经流域出口断面的流域平均水深,常由实测的洪水资料来推求。
A:错误B:正确正确答案: B(判断题)4:某水文变量频率曲线x~p,当CV、CS不变,增加均值的数值时,则x~p线上抬。
A:错误B:正确正确答案: B(判断题)5:资金是动态的,具有时间价值。
A:错误B:正确正确答案: B(判断题)6:水库的陆面蒸发量比水面蒸发量小。
A:错误B:正确正确答案: B(判断题)7:经验频率曲线由实测材料绘制而成。
A:错误B:正确精确谜底: B(判断题)8:经济内部收益率是反映项目对国民经济所做进献的绝对目标。
A:错误B:正确正确答案: A(判断题)9:当水利方案的效益相同或基本相同时,应选择其中用度现值较小的方案。
A:错误B:正确正确答案: B(判断题)10:减少年径流系列的抽样误差,最有效的方法是提高资料的代表性。
A:错误B:精确正确答案: B(单选题)11:对设计站与上下游站平行观测的流量材料对比分析的目的是搜检洪水的()。
A:一致性B:牢靠性C:代表性D:大小正确答案: B(单选题)12:我国《水利水电工程设计洪水计算规范》规定,水文频率曲线的线型一般应采用()。
A:正态分布型B:XXXⅢ型C:指数分布型D:对数分布型正确答案: B(单选题)13:露点透露表现空气的()。
A:温度B:湿度C:透明度D:密度正确答案: B(单选题)14:设计洪水是指()A:吻合设计要求的洪水B:设计断面的最大洪水C:任一频率的洪水D:历史最大洪水精确谜底: A(单选题)15:分期确定防洪限制水位时,副汛期的防洪限制水位比主汛期的汛限水位()。
大工《水利水能规划》考试试题

《水利水能规划》一、判断题1在年径流分析计算中,由于采用无偏估计公式计算参数,从而减小了年径流系列的抽样误差。
A错误B正确我的答案:A2要准确地定出特大洪水的重现期是相当困难的,目前,一般是根据历史洪水发生的年代来大致推估。
A错误B正确我的答案:B3灌溉水库死水位的确定时,主要考虑自流灌溉的要求,其他方面可不考虑。
A错误B正确我的答案:A4径流具有周期性。
A错误B正确我的答案:B5调节性能与库容的对应关系为周期越短,调节性能越好,相应的库容也越大。
A错误B正确我的答案:A6洪峰径流系数与次降雨径流系数的含义相同。
A错误B正确我的答案:A7当库水位超过设计洪水位时,必须启用非常溢洪道。
A错误B正确我的答案:A8水库不同的运用方式,要求闸门有不同的启闭过程。
A错误B正确我的答案:B9经验频率曲线由实测资料绘制而成。
A错误B正确我的答案:B10分期设计洪水是指一年中某个时段所拟定的设计洪水。
A错误B正确我的答案:B二、单选题1随机变量所有取值的全体称为()。
A总体B样本C均值D均方差我的答案:A2水文分析与计算,是预计水文变量在( )的概率分布情况A任一时期内B预见期内C未来很长很长的时期内D某一时刻我的答案:C3我国最大的三峡水力发电工程的装机容量为()万千瓦。
A1680B1720C1820D1960我的答案:C4根据我国在一定时期内的投资收益水平、资金机会成本、资金供求状况以及最近几年建设项目国民经济评价的实际情况,现在采用的社会折现率为()Ais=12%Bis=15%Cis=20%Dis=10%我的答案:A5水文现象中,大洪水出现机会比中、小洪水出现机会小,其频率密度曲线为()。
A负偏B对称C正偏D双曲函数曲线我的答案:C三、多选题1国民经济评价的费用和效益的动态经济计算采用()。
A影子价格B机会成本C价格核算D社会折现率我的答案:DA2设计洪水的三要素包括下列()。
A设计洪峰流量B不同时段的设计流量C设计洪水过程线D设计洪水历时我的答案:CAB3属于国民经济评价内容的有()A防洪效益B水力发电效益C航运效益D建设项目销售收入我的答案:ABC4电力系统装机容量中的必需容量,不包括下列()。
大工13秋《水利水能规划》在线作业1,2,3

判断题
单选题
多选题
、多选题(共道试题,共分.)
.水利工程进行投资分摊地优点主要有().
.合理分配资金
.协调各部门要求
.便于经济核算
.便于计算部门效益
满分:分
.调洪计算地解法,一般包括().
.瞬态法
.数值解法
.图解法
.半图解法
满分:分
.洪水调节地瞬态法地缺点有().
.费时
.需要试算
.灌水定额
.灌溉定额
.毛灌水量
.净灌水量
满分:分
.必然事件地概率等于().
.
.
.
.到之间
满分:分
大工秋《水利水能规划》在线作业
试卷总分:测试时间:
判断题
单选题
多选题
、多选题(共道试题,共分.)
.水文比拟法地关键问题在于选择恰当地参证流域,参证流域相比于设计流域应具有().
.较长实测径流资料
.气候条件一致性
判断题
单选题
多选题
、多选题(共道试题,共分.)
.典型洪水过程线地选择原则有().
.区分时段
.峰高量大
.代表性强
.对工程不利
满分:分
.在水利水电规划设计中,常选择有代表性地年份作为设计代表年,设计代表年可分为().
.设计枯水年
.设计中水年
.设计丰水年
.设计供水年
满分:分
.水库兴利调节计算地目标可以概括为().
满分:分
.水电站保证出力就是水电站在长期工作中,符合水电站设计保证率要求地枯水期(供水期)内地平均出力.
.错误.正确
满分:分
.无调节水电站无论在何种情况下都只能承担基荷.
《水利水能规划》模拟试题 (一)

《水利水能规划》模拟试题 (一)一、填空题(每题4分,共20分)1. 水库水量损失主要包括______和______ 。
答:蒸发损失 渗漏损失 结冰损失2. 径流调节计算的原理是______,用公式表示为______公式的物理意义是______ 。
答:水量平衡原理,W末=W 初+W 入-W 出 (或△V=(Q 入-Q 出)△T ) 在任何一时段内,进入水库的水量和流出水库的水量之差,等于水库在这一时段内蓄水量的变化3. 在水利水能规划中无论是时历列表试算还是图解法其基本原理都是依据____平衡。
答:水量4. 确定装机容量中的最大工作容量是以_______和保证电能为依据的。
答:保证出力5. 无调节(即径流式)水电站总是工作在日负荷图的_____ ,而调节好的水电站在枯水期又总是工作在日负荷图的_____ 。
答: 基荷 峰荷位置二、判断改错题(每题4分,共20分)1. 水量累积曲线上任意一点的切线斜率代表该时刻的瞬时流量。
()答:√2. 库容系数β是反映水库兴利调节的能力,等于设计枯水年供水期调节流量与多年平均流量的比值。
( )答:×,改为“库容系数β是反映水库兴利调节的能力,等于兴利库容与坝址处多年平均年径流量的比值。
”或改为“调节系数是度量径流调节的程度,等于设计枯水年供水期调节流量与多年平均流量的比值。
”3. 在经济计算中,静态分析与动态分析的本质差别是考虑了资金的时间价值。
()答:√4. 保证电能一定大于多年平均电能(即多年平均发电量)。
()答:×,小于5. 河床式水电站适应于高水头,小流量。
( )答:×,低水头大流量三、简答题(每题5分,共40分)1. 什么是水库的特征水位?水库有哪些特征水位和特征库容?答案提示:水库的特征水位是指水库工作状况的各种水位,水库的特征水位及其相应库容体现着水库利用和正常工作的各种特定要求,是规划设计阶段确定主要水工建筑物尺寸及估算工程效益的基本依据,这些特征水位和相应库容有:死水位与死库容、正常蓄水位与兴利库容、防洪限制水位与结合库容、防洪高水位与防洪库容、设计洪水位与拦洪库容、校核洪水位与调洪库容。
大连理工大学智慧树知到“水利水电工程”《水利水能规划》网课测试题答案卷1

大连理工大学智慧树知到“水利水电工程”《水利水能规划》网课测试题答案(图片大小可自由调整)第1卷一.综合考核(共10题)1.正态频率曲线中包含的统计参数分别是()。
A.均值B.离势系数C.均方差D.偏态系数2.水资源具有()。
A.可代替性B.可再生性C.无限性D.多样性3.校核洪水来临时,水库枢纽的某些正常工作可以暂时破坏,次要建筑物允许损毁,但主要建筑物必须确保安全。
()A.正确B.错误4.对于一个统计系列,当Cs=0时称为正态分布; 当Cs>0时称为负偏态分布; 当CsA.正确B.错误5.水文分析计算中, 相关分析的先决条件是两变量在物理成因上不必有联系。
()A.正确B.错误6.水利发电机组的出线端送出的功率,称为水电站的()。
A.发电量B.出力C.最小负荷D.最大负荷7.正态分布密度曲线中Cs=0。
()A.正确B.错误8.灌溉水库属变动供水调节,主要原因是()各年不同。
A.入库径流B.调度方案C.灌区年综合灌溉定额D.灌溉流量9.对放大后的设计洪水进行修匀是依据()。
A.过程线光滑B.过程线与典型洪水相似C.水量平衡D.典型洪水过程线的变化趋势10.当库水位超过设计洪水位时,必须启用非常溢洪道。
()A.正确B.错误第1卷参考答案一.综合考核1.参考答案:AC2.参考答案:B3.参考答案:A4.参考答案:B5.参考答案:B6.参考答案:B7.参考答案:A8.参考答案:C9.参考答案:C10.参考答案:B。
大工秋《水利水能规划》大作业及要求答案

大工16秋《水利水能规划》大作业及要求答案Big work 16 autumn "water conservancy and hydropower planning" major operations and requirements answerJob contentTitle: time series method for calculating favorable reservoir capacityLearning center:Major:Year: Spring / autumnStudent number:Student:Tutor:1 basic knowledge1.1 regulation of reservoir profitExcept for non regulated water conservancy and hydropower projects that can only supply natural runoff water, all of them can adjust the storage capacity to a certain extent.The relation between regulation performance and reservoir capacity: the longer the cycle, the better the regulationperformance and the larger the storage capacity.1, according to the adjustment cycle points:(1) daily regulation: the regulation period of daily regulation is one day and four days. That is to say, the daily water demand of reservoir will be adjusted by the daily water demand of the water sector. Daily variation of power load.(2) weekly adjustment: the regulation cycle of the week adjustment is one week, and the inflow runoff which is not changed within a week is adjusted according to the water demand process of the water sector. The weekly variation of power consumption in a period of time.(3) annual adjustment: the annual runoff of inland rivers has changed greatly, and the water supply during the rainy season and the dry season is very different. The task of regulating the annual runoff is to store and increase the surplus water during the flood season in accordance with the annual domestic water demand process in the water sector, so as to increase the water supply during the water shortage period, and the regulation cycle is less than one year. According to the variation of the abundance and drought in the runoff, the regulation of the abundance and deficiency of the seedlings was carried out.(4) adjustment over many years: the task of regulating runoff for many years is to utilize the storage capacity of the reservoir to save the surplus water in the year of the flood so as to increase the water supply in the dry season. For manyyears, the drought and flood change year by year.2, according to reservoir task points(1) single task streamflow regulation;(2) comprehensive utilization of runoff regulation;3, according to the reservoir water supply mode(1) fixed water supply;(2) variable water supply;4. Other classifications(1) reverse regulation reservoir: the downstream reservoir is adjusted again according to the demand of water.(2) compensation adjustment of a single reservoir: mutual compensation between reservoir and downstream water supply.(3) adjustment of reservoir group compensation: hydrology, storage capacity and power compensation.1.2, the concept of regulatory cycleConstruction of the so-called regulatory cycle, refers to the reservoir capacity of the reservoir, from storage to full storage and then emptying of the complete storage process. The longer regulation period, the better regulation performance ofreservoir and the corresponding storage capacity.1.3 hour calendar method1, according to the water use process to determine reservoir benefit storage capacityKnown: natural runoff, dead storage capacity, according to the requirements of water to facilitate the storage capacity and facilitate the settlement of water storage.(1) annual adjustment calculation process without water loss:Determine the regulatory cycle: usually in October of that year, second years, June;The difference between water demand and natural runoff was calculated monthly from 10 to June;The accumulated difference is the favorable reservoir capacity and the advantageous reservoir position;Returning to the beginning of the flood season, the reservoir will be stored, discharged and abandoned.Determine the water level of the downstream section according to the discharge.(2) annual adjustment calculation process of water loss (considering water evaporation loss):Use of water loss calculation results;Determine the water area of each period;Calculate the evaporation loss at each period;The difference between the amount of water supply + evaporation loss and natural runoff is calculated monthly;The difference between the accumulated traffic;Determine the reservoir capacity and profit and fill water level, and determine the reservoir operation process.Summary and induction:The greater the difference between runoff and water use, the greater the storage capacity;Under the condition of one charge and storage, the sum of the water shortage and the loss amount accumulated during the whole water supply period, that is, the favorable storage capacity is independent of the amount of water allocated within each month;The total adjustment water quantity in water supply period is converted into flow, and then is adjusted by the average runoff for many years, and the adjustment coefficient is obtained to reflect the regulating performance.2, according to the favorable reservoir capacity to determinethe flow adjustmentAccording to the two calculation methods: the annual adjustment process of water loss and the annual adjustment process of water loss loss can be seen:(1) if the water loss is not considered, adjust the flow rate = (W for +V Xing), /T supply(2) if water loss is consideredAdjust flow = = W (W, +V, /T)(3) the storage capacity factor B=V is /W and the average annual rate is 830%;Over more than 30% years to adjust.3, according to the reservoir capacity and reservoir operation plan, the reservoir operation process is deduced:Constant flow operation: irrigation, water supply, shipping, etc., actual demand.Constant power operation: in order to meet the requirement of power consumption, the water quantity of hydropower station should be adjusted to the change of load.Because the output is related to the flow rate and the head, and the flow is related to the head, the calculation of the output is calculated by trial calculation.2 calculate content2.1 calculation dataAccording to the basic data given, the calculation process is described in detail.The average annual discharge of the dam site of a proposed reservoir is annual average water inflow. According to the design guarantee rate = 90%, the selected design low flow year hydrograph is shown in table 1. The initial storage capacity. Try to calculate the regulated flow rate (excluding water loss) and the adjustment factor.Table 1 monthly flow data sheet for designing low flow yearAverage of 789101112123456 years in MarchMonthly average flow ()294824167644875413.52.2 determine reservoir regulation performanceAccording to the basic data, the reservoir regulation performance is determined, and the calculation process and final results are described in detail.2.3 determine the regulated flowAccording to the basic data for flow adjustment calculation, detailed description of the calculation process and final results.2.4 adjustment factorAccording to the basic data given adjustment coefficient calculation, detailed description of the calculation process and final results."Water conservancy and hydropower planning offline operation" course learning requirementsI. the form of curriculum assessmentThe assessment of this course is offline, with online homework. The final course results include 80% offline homework scores and +20% online assignments. Offline jobs and requirements are downloaded from the offline homework module of the course.Two, offline job requirementsStudents need to download the "big 16" autumn "planning of water conservancy and hydropower operations and requirements in platform offline operation, watch the course video courseware, courseware based on knowledge and theory, fill in the" big 16 "autumn" planning of water conservancy and hydropower operations and requirements, and submit to the course platform, off-line homework as one of the main basis for the submission of course assessment.Three, offline job submission form and deadlineStudents need to submit an offline job in the form of an attachment (the size of the attachment is limited to 10M), select the completed job, and click "turn in". As shown in the following figure.Deadline: March 7, 2017. Prior to this, students can submit offline work at any time. If you need to modify, you can upload new files directly. The platform will automatically overwrite the original file.Four, offline operation markingThe teacher will be in operation after the closure of centralized marking offline operation, the offline operation is not carried out before the deadline to submit any form of marking.Matters needing attention:Complete the offline operation independently, allowed plagiarism or ask someone to do, any similarity scores to 0!School of network education, Dalian University of TechnologyNovember 2016。
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(判断题)1: 水库调节周期是指水库的兴利库容从库空-蓄满-放空的完整的蓄放过程。
A: 错误
B: 正确
正确答案: B
(判断题)2: 为了充分利用水能资源,无调节水电站应该尽可能承担电力系统的基荷。
A: 错误
B: 正确
正确答案: B
(判断题)3: 一场降雨洪水的径流深为这场洪水流经流域出口断面的流域平均水深,常由实测的洪水资料来推求。
A: 错误
B: 正确
正确答案: B
(判断题)4: 某水文变量频率曲线x~p,当CV、CS不变,增加均值的数值时,则x~p线上抬。
A: 错误
B: 正确
正确答案: B
(判断题)5: 资金是动态的,具有时间价值。
A: 错误
B: 正确
正确答案: B
(判断题)6: 水库的陆面蒸发量比水面蒸发量小。
A: 错误
B: 正确
正确答案: B
(判断题)7: 经验频率曲线由实测资料绘制而成。
A: 错误
B: 正确
正确答案: B
(判断题)8: 经济内部收益率是反映项目对国民经济所做贡献的绝对指标。
A: 错误
B: 正确
正确答案: A
(判断题)9: 当水利方案的效益相同或基本相同时,应选择其中费用现值较小的方案。
A: 错误
B: 正确。