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本课程起止时间为:2020-12-09到2021-06-25
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01 The introduction Test 01

1、 问题:The occurrence of hydrological phenomena is           .
选项：
A:completely accidental
B:completely inevitable
C:completely random
D:both inevitable and random
答案: 【both inevitable and random】

2、 问题:Hydrological analysis and calculation is to predict the probability distribution of the hydrological variable             .
选项：
A:during any period
B:during a foreseeable period
C:for a very long time in the future
D:at a certain moment
答案: 【for a very long time in the future】

3、 问题:Hydrological forecasting is to predict the scale and time course of a hydrological variable             .
选项：
A:during any period
B:during a foreseeable period
C:since a long time ago
D:at a certain moment
答案: 【during a foreseeable period】

4、 问题:The occurrence and development of hydrological phenomena are accidental, therefore, their occurrence and changes            .
选项：
A:is disorganized
B:has statistical pattern
C:is with complete certainty pattern
D:has no pattern
答案: 【has statistical pattern】

5、 问题:Water is a type of               .
选项：
A:inexhaustible resource
B:renewable resource
C:non-renewable resource
D:unlimited resource
答案: 【renewable resource】

6、 问题:The reason for making water resources regenerative is                of natural.
选项：
A:run-off
B:hydrological cycle
C:evaporation
D:precipitation
答案: 【hydrological cycle】

7、 问题:The check flood level and design flood level of the Three Gorges Project on the Yangtze River are              .
选项：
A:185.0m、180.0m
B:180.4m、175.0m
C:175.0m、180.0m
D:155.0m、145.0m
答案: 【180.4m、175.0m】

8、 问题:In natural world, the hydrological cycle between land and sea is called                .
选项：
A:Inland small cycle
B:Small loop
C:Large loop
D:Ocean water cycle
答案: 【Large loop】

9、 问题:The hydrological cycle in nature makes water resources                .
选项：
A:regenerative
B:non-renewable
C:random
D:regional
答案: 【regenerative】

10、 问题:We can trace many causes for the occurrence and development of hydrological phenomena. Therefore, the change in hydrological phenomena                 .
选项：
A:has a completely deterministic pattern
B:has a completely statistical pattern
C:has causality pattern
D:has no pattern
答案: 【has causality pattern】

06 The Calculation of design annual runoff Test 06

1、 问题:Runoff is formed by precipitation, so the relationship between annual runoff and annual precipitation is which of the following?                  
选项：
A:must be close
B:must not be close
C:close in humid areas
D:Close in dry areas
答案: 【close in humid areas】

2、 问题:Generally, the influence of human activities on the average annual precipitation in the basin is                   
选项：
A:Great significant
B:Significant
C:No significant
D:Nothing influential
答案: 【No significant】

3、 问题:Human activities (such as the construction of reservoirs, irrigation, water and soil conservation, etc.) indirectly affect the annual runoff by changing the nature of the underlying surface，which generally causes the                 
选项：
A:Evaporation is basically unchanged, thus increasing the annual runoff 
B:Evaporation increases, thus reducing annual runoff
C:Evaporation is basically unchanged, thus reducing the annual runoff 
D:Evaporation increases, thus increasing annual runoff
答案: 【Evaporation increases, thus reducing annual runoff】

4、 问题:Through the analysis and calculation of the measured annual runoff data, the annual runoff mean value and departure potential coefficient of the two rivers A and B are obtained as follows: A river:  =100,  =0.42; B river:  =500,  =0.25, by comparing the two rivers, it can be seen that                     
选项：
A:A river is rich in water resources and its runoff varies greatly from year to year
B:A river is rich in water resources, and the annual change of runoff is small
C:B river is rich in water resources and its runoff varies greatly from year to year
D:B river is rich in water resources, and the annual change of runoff is small
答案: 【B river is rich in water resources, and the annual change of runoff is small】

5、 问题:In the analysis and calculation of design annual runoff, the purpose of extending short series data to long series data is to                    
选项：
A:Increase the representativeness of the series
B:Increase the reliability of the series
C:Increase the consistency of the series
D:Consider safety
答案: 【Increase the representativeness of the series】

6、 问题:When using the contour map of annual average runoff depth to calculate the annual average runoff of small watershed, its value is equal to                   
选项：
A:Isoline value at the outlet of the basin
B:Isoline value at the center of gravity of the basin
C:Average of the above two values
D:Isoline value of the farthest point from the outlet of the basin
答案: 【Isoline value at the center of gravity of the basin】

7、 问题:In the selection of typical years, when more than one typical year is selected, irrigation engineering should select                    
选项：
A:The year when the runoff in the irrigation period is relatively dry
B:The year when the runoff in the non-irrigation period is relatively dry
C:The year when the dry season is longer and the runoff is dry
D:The year when the wet season is longer, but the runoff is dry during the dry season
答案: 【The year when the runoff in the irrigation period is relatively dry】

8、 问题:In the selection of typical years, when more than one typical year is selected,                should be selected for hydropower projects.
选项：
A:The year when the runoff of irrigation water demand period is relatively dry
B:The year when the runoff of non-irrigation water demand period is relatively dry
C:The year with a long dry season and relatively dry runoff 
D:The year with long wet season but relatively dry runoff in dry season
答案: 【The year with a long dry season and relatively dry runoff 】

9、 问题:The variation of runoff in dry season is quite stable, because it mainly comes from                    
选项：
A:overland runoff
B:Underground water storage
C:water storage in channel network
D:snowmelt runoff
答案: 【Underground water storage】

10、 问题:In the calculation of frequency, when referring to the dry water flow of a certain recurrence period, it is usually                     
选项：
A:expressed as the probability greater than the runoff
B:expressed as the probability of greater than and equal to the runoff
C:expressed as the probability of less than the runoff
D:expressed as the probability less than and equal to the runoff
答案: 【expressed as the probability less than and equal to the runoff】

03-1 Hydrological Information Collection and Processing Test 03

1、 问题:According to the funciton of the hydrologic station, it have two types. There are                .
选项：
A:water level station and rainfall station
B:basic station and rainfall station
C:basic station and dedicated station
D:water level station and flow station
答案: 【basic station and dedicated station】

2、 问题:When the water level does not change much in a day,                should be applied to calculate the daily average water level.
选项：
A:Weighted average method
B:Geometric average method
C:Arithmetic average method
D:Area bounding method
答案: 【Arithmetic average method】

3、 问题:In the hydrological test,               is the key to determine the flow through a cross section in river channel .
选项：

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