(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
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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)
(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)
Transcribed Image Text:(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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