- %٦٢ || 2amanometer.pdfExample 2.12. A U-tube manometer is used to measure the pressure of oil of specific gravity0.85 flowing in a pipe line. Its left end is connected to the pipe and the right-limb is open to theatmosphere. The centre of the pipe is 100 mm below the level of mercury (specific gravity = 13.6) inthe right limb. If the difference of mercury level in the two limbs is 160 mm, determine the absolutepressure of the oil in the pipe.Liquid (S,-0.85)ofMercury (S= 13.6)nAns.(120.84 kPa)Example 2.13. U-tube manometer containing mercury was used to find the negative pressurein the pipe, containing water. The right limb was open to the atmosphere. Find the vacuum pressurein the pipe, if the difference of mercury level in the two limbs was 100 mm and height of water in theleft limb from the centre of the pipe was found to be 40 mm below.Water (S₁ = 1.0)EPipeAns. (13.73 kPa) vaccumExample 2.21. Fig. 2.23. shows a differential manometer connected at two points A and B. AtA air pressure is 100 kN/m. Find the absolute pressure at B.WarrPB-84.36 kluAir- 40 mmh₂= 100 mmMercury (S₂= 13.6)co O V-1

Answered: Image /qna-images/answer/75d78538-1671-4684-b0d0-5ff0acaf0794.jpg

Example 2.12. A U-tube manometer is used to measure the pressure of oil of specific gravity 0.85 flowing in a pipe line. Its left end is connected to the pipe and the right-limb is open to the atmosphere. The centre of the pipe is 100 mm below the level of mercury (specific gravity = 13.6) in the right limb. If the difference of mercury level in the two limbs is 160 mm, determine the absolute pressure of the oil in the pipe.

Example 2.12. A U-tube manometer is used to measure the pressure of oil of specific gravity 0.85 flowing in a pipe line. Its left end is connected to the pipe and the right-limb is open to the atmosphere. The centre of the pipe is 100 mm below the level of mercury (specific gravity = 13.6) in the right limb. If the difference of mercury level in the two limbs is 160 mm, determine the absolute pressure of the oil in the pipe.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

- %٦٢ || 2
a
manometer.pdf
Example 2.12. A U-tube manometer is used to measure the pressure of oil of specific gravity
0.85 flowing in a pipe line. Its left end is connected to the pipe and the right-limb is open to the
atmosphere. The centre of the pipe is 100 mm below the level of mercury (specific gravity = 13.6) in
the right limb. If the difference of mercury level in the two limbs is 160 mm, determine the absolute
pressure of the oil in the pipe.
Liquid (S,-0.85)
of
Mercury (S= 13.6)
n
Ans.(120.84 kPa)
Example 2.13. U-tube manometer containing mercury was used to find the negative pressure
in the pipe, containing water. The right limb was open to the atmosphere. Find the vacuum pressure
in the pipe, if the difference of mercury level in the two limbs was 100 mm and height of water in the
left limb from the centre of the pipe was found to be 40 mm below.
Water (S₁ = 1.0)
E
Pipe
Ans. (13.73 kPa) vaccum
Example 2.21. Fig. 2.23. shows a differential manometer connected at two points A and B. At
A air pressure is 100 kN/m. Find the absolute pressure at B.
Warr
PB-84.36 klu
Air
- 40 mm
h₂= 100 mm
Mercury (S₂= 13.6)
co O V-1

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