Where required the following can be assumed,acceleration due to gravity g = 9.81 m/s2,density of water = 1000 kg/m3, standard densityof air = 1.2 kg/m3, Specific gravity of mercury =%3D13.6.1. The instantaneous liberation rate of methanein a room being advanced by a continuousminer varies from 0.05 m3/s to 0.28 m3/s.Calculate the quantity of fresh air containing nomethane that must be delivered to the workingplace to maintain continuously the methaneconcentration at the face at less than 0.5%.

To given thatcross sectional area of mine airway,A=30.25m2Time interval of each…

Answered: umea, acceleration due to gravity g =…

umea, acceleration due to gravity g = 9.81 m/s2, density of water = 1000 kg/m3, standard densit of air = 1.2 kg/m3, Specific gravity of mercury = 13.6.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

State Plane Coordinate Systems

The state plane coordinate system (SPCS or SPS) is a collection of 124 coordinate systems or geographic zones prepared for particular regions of the U.S. Every state consists of one or more than one state plane zone, the boundaries of which generally follow the county lines. Inside the U.S., there are 110 zones in total, 10 more zones in Alaska, 5 in Hawaii, and 1 for Puerto Rico and US Virgin islands. The system is extensively used for geospatial and geographic data assembling by the state and local governments.

Question

Where required the following can be assumed,
acceleration due to gravity g = 9.81 m/s2,
density of water = 1000 kg/m3, standard density
of air = 1.2 kg/m3, Specific gravity of mercury =
%3D
13.6.
1. The instantaneous liberation rate of methane
in a room being advanced by a continuous
miner varies from 0.05 m3/s to 0.28 m3/s.
Calculate the quantity of fresh air containing no
methane that must be delivered to the working
place to maintain continuously the methane
concentration at the face at less than 0.5%.

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