MOOC 工程水文学(桂林理工大学)1462109165 最新慕课完整章节测试答案

Test 01

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

10、单选题：
​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】

Test 02

1、单选题：
The drainage area refers to              which is above a certain cross section of the river.‍
选项：
A: the sum of the areas enclosed by the ground water watershed and the underground water watershed
B: the horizontal projected area enclosed by underground watershed
C: the area enclosed by the ground watershed
D: the horizontal projected area enclosed by the ground watershed
答案: 【 the horizontal projected area enclosed by the ground watershed】

2、单选题：
If there are two heavy rains occured in a certain river basin, expect the occurance location, one occured in the upstream and the other in downstream, other conditions are the same. Then, the peak flow at the exit section of river basin caused by the upstream one will be              than the one caused by the downstream.‌
选项：
A: larger and later
B: smaller and earlier
C: larger and earlier
D: smaller and later
答案: 【 smaller and later】

3、单选题：
The condition for the formation of heavy rain is             .‍
选项：
A: the area which has sufficient water vapor sources and high temperature
B: the area which has sufficient water vapor sources and low temperature
C: the area which has sufficient water vapor sources and strong upward movement of air
D: the area which has sufficient water vapor sources and no strong upward movement of air
答案: 【 the area which has sufficient water vapor sources and strong upward movement of air】

4、单选题：
The characteristics of convective rainfall are             .‎
选项：
A: large rainfall intensity , large rain area and long rainfall duration
B: small rainfall intensity, small,rain area and short rainfall duration
C: large rainfall intensity, small rain area and short rainfall duration
D: small rainfall intensity, large rain area and long rainfall duration
答案: 【 large rainfall intensity, small rain area and short rainfall duration】

5、单选题：
For relatively dry soil which is under sufficient water supply conditions, the physical process of infiltration can be divided into three stages, which are               in turn.​
选项：
A: penetration stage-seepage stage-leakage stage
B: leakage stage-seepage stage- penetration stage
C: seepage stage-leakage stage-penetration stage
D: seepage stage-penetration stage-leakage stage
答案: 【 seepage stage-leakage stage-penetration stage】

6、单选题：
               is the main factor determining the stable infiltration rate of soil.‎
选项：
A: Rainfall intensity
B: Soil water content at the beginning of rainfall
C: Rainfall duration
D: Soil characteristics
答案: 【 Soil characteristics】

7、单选题：
The total evaporation of the watershed includes                    .‎
选项：
A: water surface evaporation, land surface evaporation and plant evapotranspiration
B: water surface evaporation, soil evaporation and land surface evapotranspiration
C: land surface evaporation, plant evapotranspiration and soil evaporation
D: water surface evaporation, plant evapotranspiration and soil evaporation
答案: 【 water surface evaporation, plant evapotranspiration and soil evaporation】

8、单选题：
The amount of the daily water surface evaporation, observed by the E601 water surface evaporator, and of the daily water evaporation of large water body is (has)                .‏
选项：
A: that former one is smaller than the latter
B: that former one is greater than the latter
C: equal
D: a certain correlation
答案: 【 a certain correlation】

9、单选题：
The process of basin confluence mainly includes                 .‏
选项：
A: the overflow of the slope and slope confluence
B: concentration of river network and collection of river channels
C: slope confluence and concentration of river network
D: the overflow of the slope and slope concentration
答案: 【 slope confluence and concentration of river network】

10、单选题：
The amount of floods formed by the net rain depth of rainfall in river basin should be quantitatively                .‍
选项：
A: equal to the runoff depth of the flood
B: larger than the runoff depth of the flood
C: less than the runoff depth of the flood
D: larger than or equal to the runoff depth of the flood
答案: 【 equal to the runoff depth of the flood】

Test 03

1、单选题：
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、单选题：
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、单选题：
In the hydrological test,               is the key to determine the flow through a cross section in river channel .‎
选项：
A: measured cross-section
B: observation of water level during flow measurement
C: calculating the average velocity of vertical line
D: measuring the velocity of measuring point
答案: 【 measuring the velocity of measuring point】

4、单选题：
When using a flow meter to measure the velocity of a point, the time required for each measurement should be                   .​
选项：
A: the shorter the better
B: the longer the better
C: about 100s
D: unrestricted
答案: 【 about 100s】

5、单选题：
Measuring the flow velocity at a certain point with a flow meter, actually is to measure the                of the flow meter at that point.‎
选项：
A: Rotate speed
B: Hydraulic pitch
C: Friction constant
D: Speed measurement duration
答案: 【 Rotate speed】

6、单选题：
When a hydrologic station is affected by flood fluctuations, the relationship curve of water level and flow                 .‏
选项：
A: will go up
B: will go down
C: will in the shape of a clockwise noose
D: will in the shape of a counter-clockwise noose
答案: 【 will in the shape of a counter-clockwise noose】

7、单选题：
The relationship of water level and flow in a hydrologic station is a single curve. When the messuring cross section is silted,                 .‏
选项：
A: the curve will goes up
B: the curve will goes down
C: the curve will in the shape of a noose
D: the curve will have no change