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- C1 (a). A lubricating oil having the dynamic viscosity of 0.058 poise and kinematic viscosity of 0.14 stokes. Calculate (i) the density of oil in kg/m3, (ii) the weight density of oil in N/m3, (i) the specific gravity, and (iv) the specific volume in m3/kg. C1 (b). Calculate the capillary effect in mm in a glass tube of 3.6 mm diameter, when immersed in (1) water (2) mercury. The values of surface tension in contact with air are 0.0743 N/m and 0.75 N/m respectively. The contact angle for water =0° and mercury =130°. C1(a).(i).The density of oil in kg/m3 C1(a). (ii) the weight density of oil in N/m3 C1(a). (iii) the specific gravity C1(a). (iv) the specific volume in m3/kg C1 (b). 1.The capillary effect (water) in mm C1 (b). 2.The capillary effect (mercury) in mmC1 (a). A lubricating oil having the dynamic viscosity of 0.058 poise and kinematic viscosity of 0.14 stokes. Calculate (i) the density of oil in kg/m3, (ii) the weight density of oil in N/m3, (i) the specific gravity, and (iv) the specific volume in m3/kg. C1 (b). Calculate the capillary effect in mm in a glass tube of 3.6 mm diameter, when immersed in (1) water (2) mercury. The values of surface tension in contact with air are 0.0743 N/m and 0.75 N/m respectively. The contact angle for water =0° and mercury =130°. (Enter only the values by referring to the unit given. Also, upload the handwritten answers in the link provided) C1(a).(i).The density of oil in kg/m³ C1(a). (ii) the weight density of oil in N/m3 C1(a). (iii) the specific gravity C1(a). (iv) the specific volume in m³/kg C1 (b). 1.The capillary effect (water) in mm C1 (b). 2.The capillary effect (mercury) in mmC1 (a). A lubricating oil having the dynamic viscosity of 0.058 poise and kinematic viscosity of 0.14 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. C1 (b). Calculate the capillary effect in mm in a glass tube of 3.6 mm diameter, when immersed in (1) water (2) mercury. The values of surface tension in contact with air are 0.0743 N/m and 0.75 N/m respectively. The contact angle for water =0° and mercury 130°. (Enter only the values by referring to the unit given. Also, upload the handwritten answers in the link provided) C1(a).(i).The density of oil in kg/m3 C1(a). (ii) the weight density of oil in N/m3 C1(a). (ii) the specific gravity C1(a). (iv) the specific volume in m3/kg C1 (b). 1.The capillary effect (water) in mm C1 (b). 2.The capillary effect (mercury) in mm
- A shaft 70.0 mm in diameter is being pushed at speed of 0.4 m/s through a bearing sleeve 70.2 mm in diameter and 250 mm long. The clearance, assumed uniform, is filled with oil at 4degree C with viscosity of 0.005 m^2/s and s.g. =0.9. Find the force exerted on the shaft in N. a. 18,000 b. 4.50 c. 986.45 d. 989.64C1 (a). A lubricating oil having the dynamic viscosity of 0.058 poise and kinematic viscosity of 0.19 stokes. Calculate ) the density of oil in kg/m³, (ii) the weight density of oil in N/m3,(iii) the specific gravity, and (iv) the specific volume in m3/kg. C1 (b). Calculate the capillary effect in mm in a glass tube of 4.4 mm diameter, when immersed in (1) water (2) mercury. The values of surface tension in contact with air are 0.0756 N/m and 0.74 N/m respectively. The contact angle for water =0° and mercury = 130°. ( (Enter only the values by referring to the unit given. Also, upload the handwritten answers in the link provided) C1(a).(1).The density of oil in kg/m3 C1(a). (ii) the weight density of oil in N/m3 C1(a). (iii) the specific gravity C1(a). (iv) the specific volume in m?/kg C1 (b). 1.The capillary effect (water) in mm ----- C1 (b). 2.The capillary effect (mercury) in mm(Q)A pump running at 1,440 rpm has to support a load of 10 kN. Journal diameter is 130 mm. Design a suitable Finite hydrodynamic journal bearing (L/D=1) with radial clearance of 0.065mm. The inlet oil film temperature is 450C. Calculate the bearing characteristics and the required heat dissipation. 1 Add file Submit This form was created inside of University of Babylon. Report Abuse Google Forms
- 8. A square metal plate 1.5 m side and 1.5 mm thick weighing 50 N is to be lifted through a vertical gap of 25 mm of infinite extent. The oil in the air gap has a specific gravity of 0.95 and viscosity of 2.5 N.s/m². If the metal plate is to be lifted at a constant speed of 0.1 m/s find the force and power required. [Ans. 145.7 N, 14.57 W] 15C1 (a). A lubricating oil having the dynamic viscosity of 0.052 poise and kinematic viscosity of 0.19 stokes. Calculate (i) the density of oil in kg/m³, (ii) the weight density of oil in N/m³,(iii) the specific gravity, and (iv) the specific volume in m3/kg. (4 Marks) C1 (b). Calculate the capillary effect in mm in a glass tube of 4.2 mm diameter, when immersed in (1) water (2) mercury. The values of surface tension in contact with air are 0.0771 N/m and 0.64 N/m respectively. The contact angle for water =0° and mercury =130°. (3 Marks) (Enter only the values by referring to the unit given. Also, upload the handwritten answers in the link provided) C1(a).(i).The density of oil in kg/m³ Ak C1(a). (ii) the weight density of oil in N/m3 C1(a). (iii) the specific gravity C1(a). (iv) the specific volume in m3/kg C1 (b). 1.The capillary effect (water) in mm C1 (b). 2.The capillary effect (mercury) in mmThe viscosity of motor oil is 4.79× 10-³ N. s/m², motor oil is used as a lubricant between two machine parts. The variation in velocity of the oil is 1.6 m/s and a maximum shear stress is 62.8 N/m². What is the required spacing between machine parts in millimeter?
- C1 (a). A lubricating oil having the dynamic viscosity of 0.058 poise and specific gravity of 1.11. Calculate (i) the density of oil in kg/m3, (ii) the weight density of oil in N/m3,(iii) the kinematic viscosity in stokes, and (iv) the specific volume in m³/kg. C1 (b). The capillary effect in a glass tube of 2.6 mm diameter, when immersed in (1) water and (2) mercury are 7.4 mm and -3.5 mm respectively. Calculate the value of surface tension in contact with air for water and mercury in N/m. Take, the contact angle for water =0° and mercury =130°. C1(a).(i).the density of oil in kg/m3 C1(a). (ii) the weight density of oil in N/m3 C1(a). (iii) the kinematic viscosity in stokes C1(a). (iv) the specific volume in m³/kg C1 (b). 1.the value of surface tension (water) in N/m C1 (b). 2. the value of surface tension (mercury) in N/mA journal bearing of 50 mm diameter supports a shaft running at a speed of 320 rpm. A lubricating oil of absolute viscosity of 0.06 kg/m-s is used. The oil is found to operate satisfactorily with a diametral bearing clearance of 0.15 mm and a bearing pressure of 1.5 N/mm. Consider Sommerfeld number as 14.3 x 10°, a constant. (i) If it is necessary to change the speed to 400 r.p.m, determine the pressure at which the bearing should operate. If, when designed for a speed of 320 r.p.m, and pressure of 1.5 N/mm, the clearance had been made 0.12 mm, what change should be made in (ii) the oil?O Mercury makres an angle of 130 with fespect to the Vertical when in contact with Clean qglass. Ho w far will mercury rse up or depress in e clean Imm-dicemeter tube? Take surface tensim 0=0.467 N/m, specific gravity Of mercury SaHg 13.6 end density Of weater p = loookg/m®. ) The sled Shown slides along a thin horizontal layer Of water between the ice and the runner. Ihe horizontal foree that the water exerts on the runner is 5. 4N. If the velocity f the runner is 17m/8 and the area Af the Kenner is O.0075m, determine the distence between the Sled renner and the ice Tere Visessity of water N =1-68X103rg)mas Et and defilke aA