Answer: E7018 is a low-hydrogen iron powder type electrode that produces high quality x-ray welds. It can be used in all positions on AC or DC reverse polarity welding current.
Explanation: Hope this helps
Answer:
It organization structure an advantage. Disadvantage is employees are responsible for the project team.
Explanation:
One advantage of the matrix organizational structure is that people across different functional areas have a better understanding of their coworkers in other areas.
A disadvantage is that employees are responsible of their project team as well as to hair functional areas. It can create some conflict.
Answer:
Geological and civil engineers sometimes work together, but have very different responsibilities. While geological engineers study the earth's inner and outer surface to evaluate potential mining and infrastructure construction sites, civil engineers design the infrastructure to be built.
Answer:
Given:
P₁ = 500 kPa
T₁ = 860 K
P₂= 100 kPa
T₂ = 460 K
Let's take entropy properties of T1 and T2 from ideal properties of air,
at T = 860K, s(T₁) = 2.79783 kJ/kg.K
at T = 460K, s(T₂) = 2.13407 kJ/kg.K
using entropy balance equation:
![\frac{\sigma _cv}{m} = s(T_2)- s(T_1) - R In [\frac{P_2}{P_1}]](https://tex.z-dn.net/?f=%20%5Cfrac%7B%5Csigma%20_cv%7D%7Bm%7D%20%3D%20s%28T_2%29-%20s%28T_1%29%20-%20R%20In%20%5B%5Cfrac%7BP_2%7D%7BP_1%7D%5D%20)
![\frac{\sigma _cv}{m} = 2.79783 - 2.13407 - 0.287 In [\frac{100}{500}]](https://tex.z-dn.net/?f=%20%5Cfrac%7B%5Csigma%20_cv%7D%7Bm%7D%20%3D%202.79783%20-%202.13407%20-%200.287%20In%20%5B%5Cfrac%7B100%7D%7B500%7D%5D%20)
= - 0.2018 kJ/kg. K
In this case the entropy is negative, which means the value of exit temperature is not correct, beacause entropy should always be positive(>0).
Answer:
P = $ 766.28
Explanation:
present value = ?
Future value = $ 2000
time = 5 years
compounded annually at the rate of = 10 %
2000 = P + 1.61 P
2.61 P = 2000
P = $ 766.28
hence, the present value of amount invested to get the future value of $2000 is equal to P = $ 766.28
