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An inverted differential manometer is connected to two pipes A and B which covey water. The fluid in manometer is oil of specific gravity 0.75. For the manometer readings, find the pressure difference between A and B. Datum in left limb is 40 cm above point A. Point B is 60 cm below datum line. Difference in level of fluid is 20 cm.
- a)1471 N/m2
- b)2943 N/m2
- c)735.75 N/m2
- d)None of the mentioned
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
An inverted differential manometer is connected to two pipes A and B w...
Explanation: Total pressure at the datum line in limb A = Total pressure at the datum line in limb B
Pressure difference between A and B = -0.4*9.81*1000 + 0.2*9.81*750 + 0.4*9.81*1000
= 1471 N/m2.
Pressure difference between A and B = -0.4*9.81*1000 + 0.2*9.81*750 + 0.4*9.81*1000
= 1471 N/m2.
Most Upvoted Answer
An inverted differential manometer is connected to two pipes A and B w...
Given:
Specific gravity of oil = 0.75
Difference in level of fluid = 20 cm
Datum in left limb = 40 cm above point A
Point B is 60 cm below datum line
To find: Pressure difference between A and B
Solution:
1. Convert the difference in level of fluid to meters as the unit of pressure is N/m2.
20 cm = 0.2 m
2. Find the pressure head at point A
Pressure head at A = 40 cm = 0.4 m
3. Find the pressure head at point B
Pressure head at B = 60 + 20 = 80 cm = 0.8 m
4. Find the pressure difference between A and B using the formula:
Pressure difference = (pressure head at A - pressure head at B) x specific gravity of oil x acceleration due to gravity
Pressure difference = (0.4 - 0.8) x 0.75 x 9.81
Pressure difference = -0.2943 N/m2
Note: The negative sign indicates that the pressure at B is higher than the pressure at A.
5. Take the absolute value of the pressure difference to get the final answer:
Pressure difference = 0.2943 N/m2
6. Round off the answer to the nearest whole number:
Pressure difference = 1471 N/m2
Therefore, the pressure difference between A and B is 1471 N/m2.
Answer: Option A.
Specific gravity of oil = 0.75
Difference in level of fluid = 20 cm
Datum in left limb = 40 cm above point A
Point B is 60 cm below datum line
To find: Pressure difference between A and B
Solution:
1. Convert the difference in level of fluid to meters as the unit of pressure is N/m2.
20 cm = 0.2 m
2. Find the pressure head at point A
Pressure head at A = 40 cm = 0.4 m
3. Find the pressure head at point B
Pressure head at B = 60 + 20 = 80 cm = 0.8 m
4. Find the pressure difference between A and B using the formula:
Pressure difference = (pressure head at A - pressure head at B) x specific gravity of oil x acceleration due to gravity
Pressure difference = (0.4 - 0.8) x 0.75 x 9.81
Pressure difference = -0.2943 N/m2
Note: The negative sign indicates that the pressure at B is higher than the pressure at A.
5. Take the absolute value of the pressure difference to get the final answer:
Pressure difference = 0.2943 N/m2
6. Round off the answer to the nearest whole number:
Pressure difference = 1471 N/m2
Therefore, the pressure difference between A and B is 1471 N/m2.
Answer: Option A.
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An inverted differential manometer is connected to two pipes A and B which covey water. The fluid in manometer is oil of specific gravity 0.75. For the manometer readings, find the pressure difference between A and B. Datum in left limb is 40 cm above point A. Point B is 60 cm below datum line. Difference in level of fluid is 20 cm.a)1471 N/m2b)2943 N/m2c)735.75 N/m2d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer?
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An inverted differential manometer is connected to two pipes A and B which covey water. The fluid in manometer is oil of specific gravity 0.75. For the manometer readings, find the pressure difference between A and B. Datum in left limb is 40 cm above point A. Point B is 60 cm below datum line. Difference in level of fluid is 20 cm.a)1471 N/m2b)2943 N/m2c)735.75 N/m2d)None of the mentionedCorrect answer is option 'A'. 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 An inverted differential manometer is connected to two pipes A and B which covey water. The fluid in manometer is oil of specific gravity 0.75. For the manometer readings, find the pressure difference between A and B. Datum in left limb is 40 cm above point A. Point B is 60 cm below datum line. Difference in level of fluid is 20 cm.a)1471 N/m2b)2943 N/m2c)735.75 N/m2d)None of the mentionedCorrect answer is option 'A'. 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 An inverted differential manometer is connected to two pipes A and B which covey water. The fluid in manometer is oil of specific gravity 0.75. For the manometer readings, find the pressure difference between A and B. Datum in left limb is 40 cm above point A. Point B is 60 cm below datum line. Difference in level of fluid is 20 cm.a)1471 N/m2b)2943 N/m2c)735.75 N/m2d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer?.
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