Code: 25003
RR
SET-1
b)
Distinguish between: i. Crop rotation and Mixed cropping ii. Base period and kor period iii. Field capacity and available moisture. After how many days the farmer should apply water to his field to ensure efficient use of irrigation water, if the field capacity is 27%, permanent wilting point is 14%, density of soil is 1500 kg/m3, effective root zone depth 0.75 m and daily consumptive use of water is 11 mm. [8+8]
or ld
2.a)
.in
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD III.B.TECH - I SEMESTER REGULAR EXAMINATIONS NOVEMBER, 2009 WATER RESOURCES ENGINEERING-I Time: 3hours Max.Marks:80 Answer any FIVE questions All questions carry equal marks --1.a) Write a note on scope of irrigation. What is meant by a multipurpose river valley project. b) Explain the benefits of irrigation. [8+8]
Define raingauge density. Discuss the ISI norms for the raingauge density. The average annual rainfall in cm at 4 existing raingauge stations in a basin are 105, 79, 70 and 66. If the average depth of rainfall over the basin is to be estimated within 10% error, determine the additional number of gauges needed. [8+8]
4.
Distinguish between: (i) Valley storage and Bank storage. (ii) Overland flow and Interflow. (iii) Influent and effluent streams. (iv) Detention Storage and Depression Storage. [4 x 4=16] What do you mean by yield of an open well. Explain the different tests of finding yield of open wells. A 20 cm well penetrates 30 m below static water level. After a long period of pumping at a rate of 1800 lpm, the drawdowns in the observation wells at 12 m and 36 m from the pumped well are 1.2 m and 0.5 m respectively. Determine the i. Transmissibility of the aquifer ii. Drawdown in the pumped well assuming radius of influence as 300 m iii. Specific capacity of the well. [8+8]
5.a)
nt
b)
uW
3.a) b)
Compare the Silt theories of Kennedy and Lacey. Discuss the maintenance of unlined irrigation canals.
Aj
6.a) b) 7.a)
b)
8.a)
b)
[8+8]
Differentiate between a weir and a barrage. Discuss their relative advantages and disadvantages. What are the functions of a divide wall in a diversion head works. Explain the general considerations for the design of the divide wall. [8+8]
What do you understand by exit gradient. How would you compute this. What is its significance. Discuss in brief Khoslas solution for sub-surface flow below a composite floor. [8+8] -oOo-
Code: 25003
RR
SET-2
.in
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD III.B.TECH - I SEMESTER REGULAR EXAMINATIONS NOVEMBER, 2009 WATER RESOURCES ENGINEERING-I Time: 3hours Max.Marks:80 Answer any FIVE questions All questions carry equal marks --1.a) Define raingauge density. Discuss the ISI norms for the raingauge density. b) The average annual rainfall in cm at 4 existing raingauge stations in a basin are 105, 79, 70 and 66. If the average depth of rainfall over the basin is to be estimated within 10% error, determine the additional number of gauges needed. [8+8]
3.a) b)
Distinguish between: (i) Valley storage and Bank storage. (ii) Overland flow and Interflow. (iii) Influent and effluent streams. (iv) Detention Storage and Depression Storage. [4 x 4=16] What do you mean by yield of an open well. Explain the different tests of finding yield of open wells. A 20 cm well penetrates 30 m below static water level. After a long period of pumping at a rate of 1800 lpm, the drawdowns in the observation wells at 12 m and 36 m from the pumped well are 1.2 m and 0.5 m respectively. Determine the i. Transmissibility of the aquifer ii. Drawdown in the pumped well assuming radius of influence as 300 m iii. Specific capacity of the well. [8+8]
or ld
2.
Compare the Silt theories of Kennedy and Lacey. Discuss the maintenance of unlined irrigation canals.
5.a)
Differentiate between a weir and a barrage. Discuss their relative advantages and disadvantages. What are the functions of a divide wall in a diversion head works. Explain the general considerations for the design of the divide wall. [8+8]
b)
[8+8]
What do you understand by exit gradient. How would you compute this. What is its significance. Discuss in brief Khoslas solution for sub-surface flow below a composite floor. [8+8]
nt
6.a)
uW
4.a) b)
b) 7.a)
Aj
b)
Write a note on scope of irrigation. What is meant by a multipurpose river valley project. Explain the benefits of irrigation. [8+8]
8.a)
b)
Distinguish between: i. Crop rotation and Mixed cropping ii. Base period and kor period iii. Field capacity and available moisture. After how many days the farmer should apply water to his field to ensure efficient use of irrigation water, if the field capacity is 27%, permanent wilting point is 14%, density of soil is 1500 kg/m3, effective root zone depth 0.75 m and daily consumptive use of water is 11 mm. [8+8] -oOo-
Code: 25003
RR
SET-3
or ld
.in
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD III.B.TECH - I SEMESTER REGULAR EXAMINATIONS NOVEMBER, 2009 WATER RESOURCES ENGINEERING-I Time: 3hours Max.Marks:80 Answer any FIVE questions All questions carry equal marks --1.a) What do you mean by yield of an open well. Explain the different tests of finding yield of open wells. b) A 20 cm well penetrates 30 m below static water level. After a long period of pumping at a rate of 1800 lpm, the drawdowns in the observation wells at 12 m and 36 m from the pumped well are 1.2 m and 0.5 m respectively. Determine the i. Transmissibility of the aquifer ii. Drawdown in the pumped well assuming radius of influence as 300 m iii. Specific capacity of the well. [8+8] 2.a) b)
Compare the Silt theories of Kennedy and Lacey. Discuss the maintenance of unlined irrigation canals.
3.a)
Differentiate between a weir and a barrage. Discuss their relative advantages and disadvantages. What are the functions of a divide wall in a diversion head works. Explain the general considerations for the design of the divide wall. [8+8]
4.a) b) 5.a) b)
Write a note on scope of irrigation. What is meant by a multipurpose river valley project. Explain the benefits of irrigation. [8+8] Distinguish between: i. Crop rotation and Mixed cropping ii. Base period and kor period iii. Field capacity and available moisture. After how many days the farmer should apply water to his field to ensure efficient use of irrigation water, if the field capacity is 27%, permanent wilting point is 14%, density of soil is 1500 kg/m3, effective root zone depth 0.75 m and daily consumptive use of water is 11 mm. [8+8]
nt
6.a)
What do you understand by exit gradient. How would you compute this. What is its significance. Discuss in brief Khoslas solution for sub-surface flow below a composite floor. [8+8]
uW
b)
[8+8]
Aj
b)
7.a) b)
Define raingauge density. Discuss the ISI norms for the raingauge density. The average annual rainfall in cm at 4 existing raingauge stations in a basin are 105, 79, 70 and 66. If the average depth of rainfall over the basin is to be estimated within 10% error, determine the additional number of gauges needed. [8+8]
8.
Distinguish between: (i) Valley storage and Bank storage. (ii) Overland flow and Interflow. (iii) Influent and effluent streams. (iv) Detention Storage and Depression Storage. [16] -oOo-
Code: 25003
RR
SET-4
3.a) b) 4.a)
b)
or ld
b)
What do you understand by exit gradient. How would you compute this. What is its significance. Discuss in brief Khoslas solution for sub-surface flow below a composite floor. [8+8] Write a note on scope of irrigation. What is meant by a multipurpose river valley project. Explain the benefits of irrigation. [8+8] Distinguish between: i. Crop rotation and Mixed cropping ii. Base period and kor period iii. Field capacity and available moisture. After how many days the farmer should apply water to his field to ensure efficient use of irrigation water, if the field capacity is 27%, permanent wilting point is 14%, density of soil is 1500 kg/m3, effective root zone depth 0.75 m and daily consumptive use of water is 11 mm. [8+8]
uW
2.a)
.in
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD III.B.TECH - I SEMESTER REGULAR EXAMINATIONS NOVEMBER, 2009 WATER RESOURCES ENGINEERING-I Time: 3hours Max.Marks:80 Answer any FIVE questions All questions carry equal marks --1.a) Differentiate between a weir and a barrage. Discuss their relative advantages and disadvantages. b) What are the functions of a divide wall in a diversion head works. Explain the general considerations for the design of the divide wall. [8+8]
Define raingauge density. Discuss the ISI norms for the raingauge density. The average annual rainfall in cm at 4 existing raingauge stations in a basin are 105, 79, 70 and 66. If the average depth of rainfall over the basin is to be estimated within 10% error, determine the additional number of gauges needed. [8+8]
6.
Distinguish between: (i) Valley storage and Bank storage. (ii) Overland flow and Interflow. (iii) Influent and effluent streams. (iv) Detention Storage and Depression Storage. [4 x 4=16] What do you mean by yield of an open well. Explain the different tests of finding yield of open wells. A 20 cm well penetrates 30 m below static water level. After a long period of pumping at a rate of 1800 lpm, the drawdowns in the observation wells at 12 m and 36 m from the pumped well are 1.2 m and 0.5 m respectively. Determine the i. Transmissibility of the aquifer ii. Drawdown in the pumped well assuming radius of influence as 300 m iii. Specific capacity of the well. [8+8]
nt
5.a) b)
7.a)
Aj
b)
8.a) b)
Compare the Silt theories of Kennedy and Lacey. Discuss the maintenance of unlined irrigation canals. -oOo-
[8+8]
