Q1 (a). A lubricating oil having the dynamic viscosity of 0.05 poise and kinematic viscosity of 0.12 stokes. Calculate (i) the density of oil in kg/m3, (ii) the weightdensity of oil in N/m³,(ii) the specific gravity, and (iv) the specific volume in m3/kg. (1.5 Marks)(b). Calculate the capillary effect in mm in a glass tube of 3.2 mm diameter, when immersed in (1) water (2) mercury. The values of surface tension in contact withair are 0.0769 N/m and 0.54 N/m respectively. The contact angle for water =0° and mercury =130°. (1 Mark)(Enter only the values in the boxes by referring to the unit given in the bracket. Do not send the hand written answer sheets to my mail)1(a).(i).The density of oil in kg/m3 (0.25 Mark)1(a). (ii) the weight density of oil in N/m³ (0.5 Mark)1(a). (iii) the specific gravity(0.25 Mark)1(a). (iv) the specific volume in m³/kg(0.5 Mark)1 (b). 1.The capillary effect (water) in mm(0.5 Mark)1 (b). 2.The capillary effect (mercury) in mm(0.5 Mark)

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(a). A lubricating oil having the dynamic viscosity of 0.05 poise and kinematic viscosity of 0.12 stokes. Calculate (i) the density of oil in kg/m3, (ii) the weight density of oil in N/m3, (ii) the specific gravity, and (iv) the specific volume in m3/kg. (1.5 Marks)

(a). A lubricating oil having the dynamic viscosity of 0.05 poise and kinematic viscosity of 0.12 stokes. Calculate (i) the density of oil in kg/m3, (ii) the weight density of oil in N/m3, (ii) the specific gravity, and (iv) the specific volume in m3/kg. (1.5 Marks)

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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Concept explainers

Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.

Question

(a). A lubricating oil having the dynamic viscosity of 0.05 poise and kinematic viscosity of 0.12 stokes. Calculate (i) the density of oil in kg/m3, (ii) the weight
density of oil in N/m³,(ii) the specific gravity, and (iv) the specific volume in m3/kg. (1.5 Marks)
(b). Calculate the capillary effect in mm in a glass tube of 3.2 mm diameter, when immersed in (1) water (2) mercury. The values of surface tension in contact with
air are 0.0769 N/m and 0.54 N/m respectively. The contact angle for water =0° and mercury =130°. (1 Mark)
(Enter only the values in the boxes by referring to the unit given in the bracket. Do not send the hand written answer sheets to my mail)
1(a).(i).The density of oil in kg/m3 (0.25 Mark)
1(a). (ii) the weight density of oil in N/m³ (0.5 Mark)
1(a). (iii) the specific gravity
(0.25 Mark)
1(a). (iv) the specific volume in m³/kg
(0.5 Mark)
1 (b). 1.The capillary effect (water) in mm
(0.5 Mark)
1 (b). 2.The capillary effect (mercury) in mm
(0.5 Mark)

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