10. A simple manometer (U-tube) containing mercury is connected to a pipe in which an oil of sp. gr. 0.8 isflowing. The pressure in the pipe is vačuum. The other end of the manometer is open to the atmosphere.Find the vacuum, pressure in pipe, if the difference of mercury level in the two limbs is 20 cm and height[Ans. - 27.86 N/em11. A single column vertical manometer (L.e., micrometer) is connected to a pipe containing oil of sp. gr. 0.9.The area of the reservoir is 80 times the area of the manometer tube. The reservoir contains mercury ofsp. gr. 13.6. The level of mercury in the reservoir is at a height of 30 cm below the centre of the pipe anddifference of mercury levels in the reservoir and right limb is 50 cm. Find the pressure in the pipe.(Ans. 6.474 N/em)12. A pipe contains an oil of sp. gr. 0.8. A differential manometer connected at the two points A and B of thepipe shows a difference in mercury level as 20 cm. Find the difference of pressure at the two points[Ans. 25113.6 Nm|of oil in the left limb from the centre of the pipe is 15 cm below.13. A U-tube differential manometer connects two pressure pipes A and B. Pipe A contains carbontetrachloride having a specific gravity 1.594 under a pressure of 11.772 N/cm? and pipe B contains oil ofsp. gr. 0.8 under a pressure of 11.772 N/em. The pipe A lies 2.5 m above pipe B. Find the difference ofpressure measured by mercury as fluid filling U-tube.14. A differential manometer is connected at the two points A and B as shown in Fig, 2.25. At B air pressureis 7.848 N/cm (abs.), find the absolute pressure at A.[Ans. 31.36 cm of mercury[Ans, 6.91 Nem)AIRWATEROIL Sp. gr.0.8OIL Sp. gr.0.850'cm30 cm12 cm100 am50 cm10 cmMERCURYSp. gr. 13.6WATERFig. 2.25Fig. 2.26

Given data Specific gravity of oil Height of mercury column Height of oil column

10. A simple manometer (U-tube) containing mercury is connected to a pipe in which an oil of sp. gr. 0.8 is flowing. The pressure in the pipe is vačuum. The other end of the manometer is open to the atmosphere Find the vacuum, pressure in pipe, if the difference of mercury level in the two limbs is 20 cm and height of oil in the left limb from the centre of the pipe is 15 cm below. [Ans. - 27.86 Nicm)

10. A simple manometer (U-tube) containing mercury is connected to a pipe in which an oil of sp. gr. 0.8 is flowing. The pressure in the pipe is vačuum. The other end of the manometer is open to the atmosphere Find the vacuum, pressure in pipe, if the difference of mercury level in the two limbs is 20 cm and height of oil in the left limb from the centre of the pipe is 15 cm below. [Ans. - 27.86 Nicm)

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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a pipe has a pressure of 4000 pascal and is connected to a 36 degree inclined single column manometer. the level of mercury in the reservoir is at a height 20 cm below the center of the pipe. The length of the inclined column which is at the same level from the mercury inside the reservoir up to the end of the column at the reight limb is 25 cm. Find the specific gravity of the fluid inside the pipe. The area of the reservoir is 125 times the area of the right limb of the manometer
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Question - Civil hydraulics The diameter of the U-tube is one-tenth the diameter of the enlarged ends, and a double column enlarged ends manometer is used to measure a minor pressure differential between two points of a system transporting air under pressure. Water is employed as the heavy liquid, and oil with a relative density of 0-82 is used as the lighter liquid in both limbs. Calculate the difference in pressure in millimetres of water for a manometer displacement of 50 mm, presuming the lighter liquid's surfaces stay in the larger ends. If carbon tetrachloride, which has a relative density of 1.6, were used in place of water but the pressure conditions remained the same, what would the manometer read?
7 The capillary rise of water at 20°C in a clean glass tube, 1.0 mm in diameter is about (Assume surface tension of water at 20°C as 0.07 N/m)
In fig. if H= 88 inches, the difference in pressure =---?(the fluid is water) Piezometer (static) tube- -Pitot tube 2 BAR CO -Fluid stagnates at point 2 (v₂ = 0) 357.6. lb/ft2 O 243 lb/ft2 O 457.6 lb/ft2. O
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1. The manometers are suitable for comparatively C. very high A. low B. high pressures. D. none of the above
Two pipes A & B carries an oil of specific gravities 0.9 & 1.2 respectively. The center of the pipe A is 30 cm above the pipe B. The height of oil in right limb is 50 cm. Also, the mercury level difference is found in right limb as 90 cm. Find the pressure difference between these two pipes in kPa. Also find the pressure equivalent in water head in mm. The difference of pressure between two pipes (PA-PB) (Unit is in kPa) ? Equivalent to Water head in mm ?
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