5. A 50 mm diameter shaft rotates in a sleeve of 50.3 mm internal diameter andlength 100 mm. In the annulus space, a lubricating oil of viscosity u = 0.11 Pa-sis filled. Calculate the rate of heat generation when the shaft rotates at 200 rpm.6. A glass capillary tube of diameter 0.3 mm and length 60 mm is dipped in a waterhaving surface tension 0.017 N/m. The contact angle between the liquid and thetube wall is 40°. Will the water overflow through the tube? If not, comment onthe nature and radius of meniscus.7. Determine the absolute pressure of air flowing in a circular duct using an inclinedtube manometer, as shown in Fig. 2.49. The barometer reading is 740 mm Hg.Air150 mm200 mímWater30°Fig. 2.49

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Description: 5. A 50 mm diameter shaft rotates in a sleeve of 50.3 mm internal diameter andlength 100 mm. In the annulus space, a lubricating oil of viscosity u = 0.11 Pa-sis filled. Calculate the rate of heat generation when the shaft rotates at 200 rpm.6. A gl

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A 50 mm diameter shaft rotates in a sleeve of 50.3 mm internal diameter and length 100 mm. In the annulus space, a lubricating oil of viscosity u = 0.11 Pa-s is filled. Calculate the rate of heat generation when the shaft rotates at 200 rpm.

A 50 mm diameter shaft rotates in a sleeve of 50.3 mm internal diameter and length 100 mm. In the annulus space, a lubricating oil of viscosity u = 0.11 Pa-s is filled. Calculate the rate of heat generation when the shaft rotates at 200 rpm.

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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5. A 50 mm diameter shaft rotates in a sleeve of 50.3 mm internal diameter and
length 100 mm. In the annulus space, a lubricating oil of viscosity u = 0.11 Pa-s
is filled. Calculate the rate of heat generation when the shaft rotates at 200 rpm.
6. A glass capillary tube of diameter 0.3 mm and length 60 mm is dipped in a water
having surface tension 0.017 N/m. The contact angle between the liquid and the
tube wall is 40°. Will the water overflow through the tube? If not, comment on
the nature and radius of meniscus.
7. Determine the absolute pressure of air flowing in a circular duct using an inclined
tube manometer, as shown in Fig. 2.49. The barometer reading is 740 mm Hg.
Air
150 mm
200 mím
Water
30°
Fig. 2.49

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