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In the moving-boat method of stream-flow measurement, the essential measurements are
- a)the velocity recorded by the current meter, the depths and the speed of the boat.
- b)the velocity and direction of the current meter, the depths and the time interval between depth readings
- c)the depth, time interval between readings, speed of the boat and velocity of the stream
- d)the velocity and direction of the current meter and the speed of the boat
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
In the moving-boat method of stream-flow measurement, the essential me...
The moving-boat technique measures the velocity over the width of a segment by suspending the current meter at a constant depth during the transverse of the boat across the stream.
The measured velocity and the additional information of the depth gives the discharge.
Thus, velocity of the river is determined by whether the current meter measures along or opposite of the stream and the velocity it measures.
The depth multiplied with velocity gives volume per unit width of water flown. The volume divided with time gives discharge flown.
The measured velocity and the additional information of the depth gives the discharge.
Thus, velocity of the river is determined by whether the current meter measures along or opposite of the stream and the velocity it measures.
The depth multiplied with velocity gives volume per unit width of water flown. The volume divided with time gives discharge flown.
Most Upvoted Answer
In the moving-boat method of stream-flow measurement, the essential me...
Moving-Boat Method of Stream-Flow Measurement
The moving-boat method is a widely used method for measuring stream-flow velocity. This method involves the use of a current meter, a boat and depth readings. The essential measurements in this method are:
Velocity and Direction of Current Meter
The current meter is used to measure the velocity and direction of the stream flow. The velocity is recorded in meters per second and the direction is recorded in degrees. The current meter is attached to a wire and lowered into the water at various depths to record the velocity and direction of the stream flow.
Depths
The depths of the stream are recorded at various points along the transect using a sounding weight or a depth sounder. The depths are recorded in meters.
Time Interval between Depth Readings
The time interval between depth readings is recorded using a stopwatch or a timer. This time interval is used to calculate the velocity of the stream flow.
Speed of the Boat
The speed of the boat is also recorded using a GPS or a speedometer. The boat is driven at a constant speed along the transect.
Calculation of Stream-Flow Velocity
The stream-flow velocity is calculated using the following formula:
V = (D/T) / C
where V is the stream-flow velocity, D is the distance between two depth readings, T is the time interval between the two depth readings, and C is the correction factor for the current meter.
Conclusion
In summary, the essential measurements in the moving-boat method of stream-flow measurement are the velocity and direction of the current meter, the depths and the time interval between depth readings. The speed of the boat is also recorded to calculate the stream-flow velocity.
The moving-boat method is a widely used method for measuring stream-flow velocity. This method involves the use of a current meter, a boat and depth readings. The essential measurements in this method are:
Velocity and Direction of Current Meter
The current meter is used to measure the velocity and direction of the stream flow. The velocity is recorded in meters per second and the direction is recorded in degrees. The current meter is attached to a wire and lowered into the water at various depths to record the velocity and direction of the stream flow.
Depths
The depths of the stream are recorded at various points along the transect using a sounding weight or a depth sounder. The depths are recorded in meters.
Time Interval between Depth Readings
The time interval between depth readings is recorded using a stopwatch or a timer. This time interval is used to calculate the velocity of the stream flow.
Speed of the Boat
The speed of the boat is also recorded using a GPS or a speedometer. The boat is driven at a constant speed along the transect.
Calculation of Stream-Flow Velocity
The stream-flow velocity is calculated using the following formula:
V = (D/T) / C
where V is the stream-flow velocity, D is the distance between two depth readings, T is the time interval between the two depth readings, and C is the correction factor for the current meter.
Conclusion
In summary, the essential measurements in the moving-boat method of stream-flow measurement are the velocity and direction of the current meter, the depths and the time interval between depth readings. The speed of the boat is also recorded to calculate the stream-flow velocity.
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In the moving-boat method of stream-flow measurement, the essential measurements area)the velocity recorded by the current meter, the depths and the speed of the boat.b)the velocity and direction of the current meter, the depths and the time interval between depth readingsc)the depth, time interval between readings, speed of the boat and velocity of the streamd)the velocity and direction of the current meter and the speed of the boatCorrect answer is option 'B'. Can you explain this answer?
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In the moving-boat method of stream-flow measurement, the essential measurements area)the velocity recorded by the current meter, the depths and the speed of the boat.b)the velocity and direction of the current meter, the depths and the time interval between depth readingsc)the depth, time interval between readings, speed of the boat and velocity of the streamd)the velocity and direction of the current meter and the speed of the boatCorrect answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about In the moving-boat method of stream-flow measurement, the essential measurements area)the velocity recorded by the current meter, the depths and the speed of the boat.b)the velocity and direction of the current meter, the depths and the time interval between depth readingsc)the depth, time interval between readings, speed of the boat and velocity of the streamd)the velocity and direction of the current meter and the speed of the boatCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the moving-boat method of stream-flow measurement, the essential measurements area)the velocity recorded by the current meter, the depths and the speed of the boat.b)the velocity and direction of the current meter, the depths and the time interval between depth readingsc)the depth, time interval between readings, speed of the boat and velocity of the streamd)the velocity and direction of the current meter and the speed of the boatCorrect answer is option 'B'. Can you explain this answer?.
In the moving-boat method of stream-flow measurement, the essential measurements area)the velocity recorded by the current meter, the depths and the speed of the boat.b)the velocity and direction of the current meter, the depths and the time interval between depth readingsc)the depth, time interval between readings, speed of the boat and velocity of the streamd)the velocity and direction of the current meter and the speed of the boatCorrect answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about In the moving-boat method of stream-flow measurement, the essential measurements area)the velocity recorded by the current meter, the depths and the speed of the boat.b)the velocity and direction of the current meter, the depths and the time interval between depth readingsc)the depth, time interval between readings, speed of the boat and velocity of the streamd)the velocity and direction of the current meter and the speed of the boatCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the moving-boat method of stream-flow measurement, the essential measurements area)the velocity recorded by the current meter, the depths and the speed of the boat.b)the velocity and direction of the current meter, the depths and the time interval between depth readingsc)the depth, time interval between readings, speed of the boat and velocity of the streamd)the velocity and direction of the current meter and the speed of the boatCorrect answer is option 'B'. Can you explain this answer?.
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