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Q1/ A 120 mm disc rotates on a table separated by an oil film of 1.8 mm thickness. Find the viscosity of oil if the torque required to rotate the disc at 60 r.p.m is 3.6 x 10 N.m. Assume the velocity gradient in the oil film to be linear = 0.0506 poise. N-60 r.p.m.

Q1/ A 120 mm disc rotates on a table separated by an oil film of 1.8 mm thickness. Find the viscosity of oil if the torque required to rotate the disc at 60 r.p.m is 3.6 x 10 N.m. Assume the velocity gradient in the oil film to be linear = 0.0506 poise. N-60 r.p.m.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Q1/ A 120 mm disc rotates on a table separated by an oil film of 1.8 mm thickness. Find the viscosity of oil if the torque required to rotate the disc at 60 r.p.m is 3.6 x 10 N.m. Assume the velocity gradient in the oil film to be linear = 0.0506 poise. N-60 r.p.m. Dise 18 mm R- Oil film (1= dy) 120 mm Table Figure (1) Q2/ The pressure in a natural gas pipeline is measured by a double U-tube manometer with one of the arms open to the atmosphere. The absolute pressure in the pipeline is to be determined if h-0.7 m, h-0.4 m, and h- 1.0 m. Take the densities of water, oil, and mercury to be 1000 kg/m', 840 kg/m', and 13,600 kg/m', respectively. Water Natural Nrcury (1-1)
Transcribed Image Text:Q1/ A 120 mm disc rotates on a table separated by an oil film of 1.8 mm thickness. Find the viscosity of oil if the torque required to rotate the disc at 60 r.p.m is 3.6 x 10 N.m. Assume the velocity gradient in the oil film to be linear = 0.0506 poise. N-60 r.p.m. Dise 18 mm R- Oil film (1= dy) 120 mm Table Figure (1) Q2/ The pressure in a natural gas pipeline is measured by a double U-tube manometer with one of the arms open to the atmosphere. The absolute pressure in the pipeline is to be determined if h-0.7 m, h-0.4 m, and h- 1.0 m. Take the densities of water, oil, and mercury to be 1000 kg/m', 840 kg/m', and 13,600 kg/m', respectively. Water Natural Nrcury (1-1)
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