Mechanical Operations Dust collection efficiency of electrostatic precipitator can be as high as 99.9%. Maximum temperature and pressure of dust laden gas that can be cleaned in an electrostatic precipitator is respectively. 500°C and 50 atm 1000°C and 10 atm 200°C and 5 atm 1000°C and 500 atm 500°C and 50 atm 1000°C and 10 atm 200°C and 5 atm 1000°C and 500 atm ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a batch sedimentation equipment? Dust catcher Filter thickener Dry cyclone separator Rotary sprayer scrubber Dust catcher Filter thickener Dry cyclone separator Rotary sprayer scrubber ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Limestone is normally crushed in a Roll crusher Ball mill Hammer crusher Tube mill Roll crusher Ball mill Hammer crusher Tube mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the Venturi atomiser Cyclone separator Electro-static precipitator Gravity settling chamber Venturi atomiser Cyclone separator Electro-static precipitator Gravity settling chamber ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc) is proportional to __________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance ). 1/μ 1/μ² √μ 1/√μ 1/μ 1/μ² √μ 1/√μ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sphericity is the ratio of the surface area of a spherical particle having the same volume as the particle to the surface area of the particle. Which of the following has the maximum value of sphericity? Cube Sphere Cylinder (L/D = 1) Raschig rings Cube Sphere Cylinder (L/D = 1) Raschig rings ANSWER DOWNLOAD EXAMIANS APP
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