1.7 A 90 N rectangular solid block slides down a 30° inclined plane. The plane is lubricated by a 3 mm thick film of oil of relative density 0.90 and viscosity 8.0 poise. If the contact area is 0.3 m2, estimate the terminal velocity of the block (Refer. Fig. 1.3).
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- A square block has 320 mm bottom sides dimensions, weighing W is 1.4 kN on an edge slides down an incline angle 0 is 20° on a film of oil 6 mm thickness, as shown below. Assuming a linear velocity profile in the oil. The viscosity of the oil is 0.009 Pa.s. W y Determine the force acting on the block, F. What is the velocity of the block, V?(a). A lubricating oil having the dynamic viscosity of 0.055 poise and kinematic viscosity of 0.11 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 m/kg.C1 (a). A lubricating oil having the dynamic viscosity of 0.056 poise and specific gravity of 1.17. 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 2.8 mm diameter, when immersed in (1) water and (2) mercury are 7.7 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/m
- 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/mC1 (a). A lubricating oil having the dynamic viscosity of 0.057 poise and specific gravity of 1.1. Calculate () the density of oil in kg/m?, (i) the weight density of oil in N/m². ii) the kinematic viscosity in stokes, and (iv) the specific volume in m /kg. (4 Marks) C1 (b). The capillary effect in a glass tube of 2.1 mm diameter, when immersed in (1) water and (2) mercury are 8.5 mm and -2.8 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°. (3 Marks) (Enter only the values by referring to the unit given. Also, upload the handwritten answers in the link provided) C1(a).6).the density of oil in kg/m (1 Mark) C1(a). (i) the weight density of oil in N/m? (1 Mark) C1(a). (ii) the kinematic viscosity in stokes (1 Mark) C1a). (iv) the specific volume in m?/kg (1 Mark) C1 (b). 1.the value of surface tension (water) in N/m (1.5 Marks) C1 (b). 2. the value of surface tension…C1 (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 mm
- QI A ball made of INOX AISI 365 steel with density of 8.52 gricm3 was used to determine the viscosity of oil with specific gravity of 0.91. In the viscometer, the ball traveled 19 cm in 2.2 seconds. If the diameter of the ball is 2.95 mm, what is the viscosity of the oil in pa.s ? assume that water density is 1000 kg/m'.plz help me with this one , i would appreciate it if you can help me now. A piston with a diameter of 0.8 m and width of L=0.6 m rotates with 6 rad/s inside a cylinder that has a diameter of 1 m that filled with oil that has a viscosity of 8x10-3 N.s/m2 What is the shear force that acts on the circumference of the piston (N)? Assume the variation in velocity of the oil is linear.A vertical cylindrical continuous decanter is to separate 44 gal/min of a liquid petroleum oil from wash acid. The volume of wash acid is twice the volume of the liquid petroleum oil. The oil is the continuous phase and at the operating temperature has a viscosity of 1.1 mPa.s and a density of 54.6 Ib/ft. The density of the acid is 72 Ib/ft. Compute (a) the volume of the decanter, (b) the liquid levels of the light and heavy liquids in the vessel and (c) the height of the heavy liquid overflow leg where the heavier liquid is discharged in an open atmosphere with a pressure of 750 mmHg. Assume that the ends of the vessel are flat and that the vessel height is twice its diameter. Air space with a pressure of 780 mmHg on top of the lighter liquid is 1/4 the volume of the mixture.
- The belt in Fig. 2, moves at a steady velocity V in the tank of oil , as shown. Assuming a linear velocity profile in the oil, determine the force F required to belt-drive at velocity of 7 m/s. if you know that the viscosity of oil is 0.29 kg/(m.s). *C1 (a). A lubricating oil having the dynamic viscosity of 0.051 poise and specific gravity of 1.12. 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. (A square block weighing 1.1 KN and 250 mm on an edge slides down an 20 degrees inclined on a film of oil 6.0 micrometer thick. Assuming a linear velocity profile in the oil, what is the terminal speed of the block in m/s. The viscosity of the oil is 7 mPa-s. a.5.16 b.5.62 c.5.75 d.5.48