Answer:
a. 0.28
Explanation:
Given that
porosity =30%
hydraulic gradient = 0.0014
hydraulic conductivity = 6.9 x 10⁻4 m/s
We know that average linear velocity given as
![v=\dfrac{K}{n_e}\dfrac{dh}{dl}](https://tex.z-dn.net/?f=v%3D%5Cdfrac%7BK%7D%7Bn_e%7D%5Cdfrac%7Bdh%7D%7Bdl%7D)
![v=\dfrac{6.9\times 10^{-4}}{0.3}\times0.0014\ m/s](https://tex.z-dn.net/?f=v%3D%5Cdfrac%7B6.9%5Ctimes%2010%5E%7B-4%7D%7D%7B0.3%7D%5Ctimes0.0014%5C%20m%2Fs)
![v=3.22\times 10^{-6}\ m/s](https://tex.z-dn.net/?f=v%3D3.22%5Ctimes%2010%5E%7B-6%7D%5C%20m%2Fs)
The velocity in m/d ( 1 m/s =86400 m/d)
v= 0.27 m/d
So the nearest answer is 'a'.
a. 0.28
Answer:
![D_o=11.9inch](https://tex.z-dn.net/?f=D_o%3D11.9inch)
Explanation:
From the question we are told that:
Thickness ![T=0.5](https://tex.z-dn.net/?f=T%3D0.5)
Internal Pressure![P=2.2Ksi](https://tex.z-dn.net/?f=P%3D2.2Ksi)
Shear stress ![\sigma=12ksi](https://tex.z-dn.net/?f=%5Csigma%3D12ksi)
Elastic modulus ![\gamma= 35000](https://tex.z-dn.net/?f=%5Cgamma%3D%2035000)
Generally the equation for shear stress is mathematically given by
![\sigma=\frac{P*r_1}{2*t}](https://tex.z-dn.net/?f=%5Csigma%3D%5Cfrac%7BP%2Ar_1%7D%7B2%2At%7D)
Where
r_i=internal Radius
Therefore
![12=\frac{2.2*r_1}{2*0.5}](https://tex.z-dn.net/?f=12%3D%5Cfrac%7B2.2%2Ar_1%7D%7B2%2A0.5%7D)
![r_i=5.45](https://tex.z-dn.net/?f=r_i%3D5.45)
Generally
![r_o=r_1+t](https://tex.z-dn.net/?f=r_o%3Dr_1%2Bt)
![r_o=5.45+0.5](https://tex.z-dn.net/?f=r_o%3D5.45%2B0.5)
![r_o=5.95](https://tex.z-dn.net/?f=r_o%3D5.95)
Generally the equation for outer diameter is mathematically given by
![D_o=2r_o](https://tex.z-dn.net/?f=D_o%3D2r_o)
![D_o=11.9inch](https://tex.z-dn.net/?f=D_o%3D11.9inch)
Therefore
Assuming that the thin cylinder is subjected to integral Pressure
Outer Diameter is
![D_o=11.9inch](https://tex.z-dn.net/?f=D_o%3D11.9inch)
Answer:
All machines have three fundamental hazards: moving parts, point of operation, and the power transmission.
Explanation:
The unit that supplies power to the machine is a critical hazard due to high energy sources being potential fatal if proper protocols are not followed. This is why lockout tagout (LOTO) measures are put in place in order to protect people while they work on equipment.
Answer:
JIT
Explanation:
JIT stands for just-in-time