Why fan is kept in a return airway and why the evasee shape

Assignment Help Civil Engineering
Reference no: EM13542208

1.A shell bursts on contact with the ground and pieces from it fly in all directions with velocities up to 49 metres per second. Show that a man 122.5 metres away is in danger for 5?2 second.

2.In coal mines, why fan is kept in a return airway and why the evasee shape is constructed? also, why it is bent at the end?

Reference no: EM13542208

Reviews

Write a Review

 

Civil Engineering Questions & Answers

  Which reactor should be preferred for the treatment plant

Chemical ‘A' is regulated by EPA and the maximum allowable concentration in water is 5 ?g/L. Design a reactor for a water treatment plant where 1000 ppm of chemical ‘A' is introduced at a flow rate of 100 m3/min.

  I want to know how to draw bending moment diagram for this

i want to know how to draw bending moment diagram for this shape and the value of the moment in critical sections

  Determine the relevant pi groups

The break up of a liquid jet into droplets of diameter d depends on the jet diameter D, the jet velocity V, viscosity Mu, density rho,and surface tension sigma.

  Compute the quantity of flow

using darcy's law compute the quantity of flow, seepage velocity and contaminant loading of the river. ground water is flowing through unconfined uniform 3m thick sand aquifer and discharging to river.

  Lateral bracing is supplied at the ends only

Using a steel with Fy = 50ksi, whatuniformaly distributed service load can a simple supported W33 x118 carry for a span of 40 ft when (a) the compression flange isbraced laterally for its full length, and (b) lateral bracing issupplied at the ends on..

  Explain how to estimate the et losses for the area in 1 year

It the mean annual runoff of a drainage basin of 10000 km^2 is 140 m^3/s, and the average annual precipitation is 105 cm, estimate the ET losses for the area in 1 year. What are your assumptions

  What is the mass flow rate of the refrigerant in kg per s

A vapor-compression refrigeration system, using Refrigerant 134a as the working fluid, has evaporator and condenser pressure of 1.4 bar and 12 bar, respectively.

  Value of the kinetic energy correction coefficient

Assuming that the velocity variation within the main channel and the floodplain subsections is much smaller than the change in mean velocities between subsections, find the value of the kinetic energy correction coefficient.

  Determine the tension in the cable

Determine the tension in the cable as the box moves between A and C and determine normal and tangential force components the road exerts on the car at this instant.

  You are studying a 3-km stretch of stream that is about 35

you are studying a 3-km stretch of stream that is about 35 m wide. a gaging station onnbspthe stream provides you with

  How much carbon dioxide-co2 will be produced

How much oxygen (mg O2) is required to support the complete oxidation of 500 mg acetate (CH3COOH). How much carbon dioxide (CO2) will be produced

  Reflected angle in circle hi therei have easy assignment to

hi there ltbrgt ltbrgti have easy assignment to solve. i will try to explain it to you and i uploaded on paper to

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd