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Identify the correct statement:
The direct method of flow measurement include
1. Area-velocity method
2. Dilution technique
3. Flow measuring structures
4. Ultrasonic method
5. Slope-area methodThe correct statements are
- a)1, 2 and 4
- b)2, 3 and 4
- c)1, 4 and 5
- d)1, 3 and 5
Correct answer is option 'A'. Can you explain this answer?
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Identify the correct statement:The direct method of flow measurement i...
Direct Methods of Flow Measurement
Direct methods of flow measurement involve the direct measurement of the velocity or discharge of fluid in a pipe or channel. The correct statement regarding direct methods of flow measurement are:
1. Area-Velocity Method: This method involves the measurement of the area of the pipe or channel and the velocity of the fluid at a particular point. The discharge is then calculated using the formula Q = AV, where Q is the discharge, A is the area of the pipe or channel, and V is the velocity of the fluid.
2. Dilution Technique: This method is based on the principle of dilution. A known quantity of a tracer substance is introduced into the fluid, and the concentration of the tracer is measured at a downstream point. The flow rate is then calculated using the formula Q = Q' (C0 - C1)/C1, where Q' is the rate of injection of the tracer, C0 is the initial concentration of the tracer, and C1 is the concentration of the tracer at the downstream point.
4. Ultrasonic Method: This method involves the use of ultrasonic waves to measure the velocity of the fluid. The velocity is measured using a pair of ultrasonic transducers, and the discharge is calculated using the formula Q = AV, where A is the cross-sectional area of the pipe or channel.
Therefore, the correct statement is option A - 1, 2 and 4.
Direct methods of flow measurement involve the direct measurement of the velocity or discharge of fluid in a pipe or channel. The correct statement regarding direct methods of flow measurement are:
1. Area-Velocity Method: This method involves the measurement of the area of the pipe or channel and the velocity of the fluid at a particular point. The discharge is then calculated using the formula Q = AV, where Q is the discharge, A is the area of the pipe or channel, and V is the velocity of the fluid.
2. Dilution Technique: This method is based on the principle of dilution. A known quantity of a tracer substance is introduced into the fluid, and the concentration of the tracer is measured at a downstream point. The flow rate is then calculated using the formula Q = Q' (C0 - C1)/C1, where Q' is the rate of injection of the tracer, C0 is the initial concentration of the tracer, and C1 is the concentration of the tracer at the downstream point.
4. Ultrasonic Method: This method involves the use of ultrasonic waves to measure the velocity of the fluid. The velocity is measured using a pair of ultrasonic transducers, and the discharge is calculated using the formula Q = AV, where A is the cross-sectional area of the pipe or channel.
Therefore, the correct statement is option A - 1, 2 and 4.
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Identify the correct statement:The direct method of flow measurement i...
Direct Method of Flow Measurement
Direct methods of flow measurement involve the measurement of flow velocity and cross-sectional area of the flow. The correct statement regarding the direct method of flow measurement are:
1. Area-Velocity Method: In this method, the flow velocity is measured using a current meter or similar instrument, and the cross-sectional area of the flow is measured using a sounding or similar instrument. The flow rate is then calculated by multiplying the velocity by the cross-sectional area.
2. Dilution Technique: In this method, a known quantity of tracer material is added to the flow, and the concentration of the tracer is measured at a downstream point. The flow rate is then calculated based on the rate of dilution of the tracer.
4. Ultrasonic Method: In this method, ultrasonic waves are used to measure the velocity of the flow, and the cross-sectional area of the flow is measured using a sounding or similar instrument. The flow rate is then calculated by multiplying the velocity by the cross-sectional area.
Therefore, the correct statement is option A, which includes methods 1, 2, and 4 as direct methods of flow measurement.
Direct methods of flow measurement involve the measurement of flow velocity and cross-sectional area of the flow. The correct statement regarding the direct method of flow measurement are:
1. Area-Velocity Method: In this method, the flow velocity is measured using a current meter or similar instrument, and the cross-sectional area of the flow is measured using a sounding or similar instrument. The flow rate is then calculated by multiplying the velocity by the cross-sectional area.
2. Dilution Technique: In this method, a known quantity of tracer material is added to the flow, and the concentration of the tracer is measured at a downstream point. The flow rate is then calculated based on the rate of dilution of the tracer.
4. Ultrasonic Method: In this method, ultrasonic waves are used to measure the velocity of the flow, and the cross-sectional area of the flow is measured using a sounding or similar instrument. The flow rate is then calculated by multiplying the velocity by the cross-sectional area.
Therefore, the correct statement is option A, which includes methods 1, 2, and 4 as direct methods of flow measurement.
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Identify the correct statement:The direct method of flow measurement include1. Area-velocity method2. Dilution technique3. Flow measuring structures4. Ultrasonic method5. Slope-area methodThe correct statements area)1, 2 and 4b)2, 3 and 4c)1, 4 and 5d)1, 3 and 5Correct answer is option 'A'. Can you explain this answer?
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