An oil of sp. gr. 0.9 is flowing through a venturimeter having inlet diameter 20 cm and throat diameter 10 cm. The oil-mercury differential manometer shows a reading of 20 cm. Calculate the discharge of oil through the horizontal venturimeter. Take C = 0.98. [Ans. 59.15 litres/s]

Elements Of Electromagnetics
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1. Solve and draw the
figures
İ. An oil of sp. gr. 0.9 is flowing through a venturimeter having inlet diameter 20 cm and throat diameter
10 cm. The oil-mercury differential manometer shows a reading of 20 cm. Calculate the discharge of oil
through the horizontal venturimeter. Take C, = 0.98.
ii. A horizontal venturimeter with inlet diameter 30 cm and throat diameter 15 cm is used to measure the flow
[Ans. 59.15 litres/s]
of oil of sp. gr. 0.8. The discharge of oil through venturimeter is 50 litres/s, find the reading of the oil-
mercury differential manometer. Take C = 0.98.
iii. A horizontal venturimeter with inlet diameter 20 cm and throat diameter 10 cm is used to measure the flow
of water. The pressure at inlet is 14.715 N/cm² and vacuum pressure at the throat is 40 cm of mercury. Find
the discharge of water through venturimeter.
[Ans. 2.489 cm]
[Ans. 162.539 lit./s]
Transcribed Image Text:1. Solve and draw the figures İ. An oil of sp. gr. 0.9 is flowing through a venturimeter having inlet diameter 20 cm and throat diameter 10 cm. The oil-mercury differential manometer shows a reading of 20 cm. Calculate the discharge of oil through the horizontal venturimeter. Take C, = 0.98. ii. A horizontal venturimeter with inlet diameter 30 cm and throat diameter 15 cm is used to measure the flow [Ans. 59.15 litres/s] of oil of sp. gr. 0.8. The discharge of oil through venturimeter is 50 litres/s, find the reading of the oil- mercury differential manometer. Take C = 0.98. iii. A horizontal venturimeter with inlet diameter 20 cm and throat diameter 10 cm is used to measure the flow of water. The pressure at inlet is 14.715 N/cm² and vacuum pressure at the throat is 40 cm of mercury. Find the discharge of water through venturimeter. [Ans. 2.489 cm] [Ans. 162.539 lit./s]
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