Mechanical Operations

Which of the following is not an industrial screening equipment ?

Byadmin February 18, 2019August 22, 2021

Which of the following is not an industrial screening equipment ?

A. Sharpies centrifuge
B. Vibrating screen
C. Grizzly
D. Trommel

Mechanical Operations

Mass flow of granular solid (M) through a circular opening of dia, D follows_____________________?

Mass flow of granular solid (M) through a circular opening of dia, D follows_____________________?

A. M ∝ √D
B. M ∝ D2
C. M ∝ D3
D. M ∝ D

Read More Mass flow of granular solid (M) through a circular opening of dia, D follows_____________________?
Mechanical Operations

Which of the following equations is Rittinger’s crushing law? (Where P = power required by the machine, m = feed rate, k = a constant, D̅ sa & D̅ sb = volume surface mean diameter of feed & product respectively) ?

Which of the following equations is Rittinger’s crushing law? (Where P = power required by the machine, m = feed rate, k = a constant, D̅ sa & D̅ sb = volume surface mean diameter of feed & product respectively) ?

A. P/m = K/ √Dp
B. P/m = K . ln D̅ sa/D̅ sb
C. P/m = K . (1/ D̅ sb – 1/D̅ sa)
D. None of these

Read More Which of the following equations is Rittinger’s crushing law? (Where P = power required by the machine, m = feed rate, k = a constant, D̅ sa & D̅ sb = volume surface mean diameter of feed & product respectively) ?
Mechanical Operations

To remove dirt from the flowing fluid, we use a ____________________?

To remove dirt from the flowing fluid, we use a ____________________?

A. Coagulant
B. Gravity settler
C. Strains
D. Clarifier

Read More To remove dirt from the flowing fluid, we use a ____________________?
Mechanical Operations

At low Reynold’s number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5: Power number Re = ρ N D2/μ: Reynold’s number N is the impeller rotational speed, and D is the impeller diameter ?

At low Reynold’s number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5: Power number Re = ρ N D2/μ: Reynold’s number N is the impeller rotational speed, and D is the impeller diameter ?

A. Po ∝ Re-1.0
B. Po ∝ Re0.0
C. Po ∝ Re0.5
D. Po ∝ Re1.0

Read More At low Reynold’s number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5: Power number Re = ρ N D2/μ: Reynold’s number N is the impeller rotational speed, and D is the impeller diameter ?
Mechanical Operations

Power consumption during turbulent flow in agitation tank is proportional to the ______________ of the liquid?

Power consumption during turbulent flow in agitation tank is proportional to the ______________ of the liquid?

A. Viscosity
B. Thermal conductivity
C. Surface tension
D. Density

Read More Power consumption during turbulent flow in agitation tank is proportional to the ______________ of the liquid?
Mechanical Operations

Maximum size reduction in a fluid energy mill is achieved by___________________?

Maximum size reduction in a fluid energy mill is achieved by___________________?

A. Compression
B. Interparticle attrition
C. Cutting
D. Impact

Read More Maximum size reduction in a fluid energy mill is achieved by___________________?

Similar Posts