A simple manometer is used to measure the pressure of oil (sp.gr=0.8)flowing in a pipeline.its right limb is open to the atmosphere and left limb is connected to the pipe.the centre of pipe is 9 cm below the level of mercury(sp.gr=13.6) in the right limb.If the differnce of mercury level in the two limbs is 15cm,dtermine the absolute pressure of the oil in the pipe in N/cm2??

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A simple manometer is used to measure the pressure of oil (sp.gr=0.8)flowing in a pipeline.its right limb is open to the atmosphere and left limb is connected to the pipe.the centre of pipe is 9 cm below the level of mercury(sp.gr=13.6) in the right limb.If the differnce of mercury level in the two limbs is 15cm,dtermine the absolute pressure of the oil in the pipe in N/cm2??

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A simple manometer is used to measure the pressure of oil (sp.gr=0.8)f...

Problem Statement: Determine the absolute pressure of oil (sp.gr=0.8) flowing in a pipeline using a simple manometer. The right limb of the manometer is open to the atmosphere, and the left limb is connected to the pipe. The center of the pipe is 9 cm below the level of mercury (sp.gr=13.6) in the right limb. If the difference in mercury level in the two limbs is 15 cm, find the absolute pressure of the oil in the pipe in N/cm2.

Solution:
To solve this problem, we need to use the concept of pressure difference between two points in a fluid. The pressure difference is given by the formula:

ΔP = ρgh

Where, ΔP is the pressure difference, ρ is the density of the fluid, g is the acceleration due to gravity, and h is the height of the fluid column.

Step 1: Determine the pressure difference between the oil in the pipe and the atmosphere.

ΔP = ρgh
= (0.8)(9.81)(15)
= 117.72 N/cm2

Therefore, the pressure difference between the oil in the pipe and the atmosphere is 117.72 N/cm2.

Step 2: Determine the absolute pressure of the oil in the pipe.

Absolute pressure is the sum of gauge pressure and atmospheric pressure. Since the right limb of the manometer is open to the atmosphere, the gauge pressure is equal to the pressure difference calculated in step 1. Therefore, the absolute pressure of the oil in the pipe is:

Pabs = Pgauge + Patm
= 117.72 + 101.325
= 219.045 N/cm2

Therefore, the absolute pressure of the oil in the pipe is 219.045 N/cm2.

Conclusion: The absolute pressure of oil flowing in the pipeline is 219.045 N/cm2.

Answered by Engineers Club · View profile

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A simple manometer is used to measure the pressure of oil (sp.gr=0.8)f...

A simple manometer is used to measure the pressure of oil (sp. gr. = 0.8) flowing in a pipe line. Its right limb is open to the atmosphere and left limb is connected to the pipe. The centre of the pipe is 9 cm below the level of mercury (sp. gr. 13.6) in the right limb. If the difference of mercury level in the two limbs is 15 cm, determine the absolute pressure of the oil in the pipe in N/cm�.

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A simple manometer is used to measure the pressure of oil (sp.gr=0.8)flowing in a pipeline.its right limb is open to the atmosphere and left limb is connected to the pipe.the centre of pipe is 9 cm below the level of mercury(sp.gr=13.6) in the right limb.If the differnce of mercury level in the two limbs is 15cm,dtermine the absolute pressure of the oil in the pipe in N/cm2?? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about A simple manometer is used to measure the pressure of oil (sp.gr=0.8)flowing in a pipeline.its right limb is open to the atmosphere and left limb is connected to the pipe.the centre of pipe is 9 cm below the level of mercury(sp.gr=13.6) in the right limb.If the differnce of mercury level in the two limbs is 15cm,dtermine the absolute pressure of the oil in the pipe in N/cm2?? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A simple manometer is used to measure the pressure of oil (sp.gr=0.8)flowing in a pipeline.its right limb is open to the atmosphere and left limb is connected to the pipe.the centre of pipe is 9 cm below the level of mercury(sp.gr=13.6) in the right limb.If the differnce of mercury level in the two limbs is 15cm,dtermine the absolute pressure of the oil in the pipe in N/cm2??.

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