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umka2103 [35]
4 years ago
14

Proper ventilation is required when welding, so that you don't ____________.

Engineering
2 answers:
galben [10]4 years ago
4 0
I say the answers is A but if you mean ventilation in the area of the room then answer B
MAVERICK [17]4 years ago
4 0
Anwser my question the one i j posted and i’ll help w yours‍♂️
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A thick spherical pressure vessel of inner radius 150 mm is subjected to maximum an internal pressure of 80 MPa. Calculate its w
ivann1987 [24]

Answer:

by principal stress theory

t = 20.226

by total strain theory

t = 20.36

Explanation:

given data

internal radius r_{1} = 150 mm

pressure p = 80 MPa

yield strength = 300 MPa

poisson's ratio = 0.3

a) by principal stress theory

thickness can be obtained as t

t  = r_{1}\left [ (\frac{\sigma _{y} +p}{\sigma _{y} - 0.5p})^{1/3}-1 \right ]

t = = 150\left [ (\frac{300 +80}{300-0.5*80})^{1/3}-1 \right ]

t = 20.226

b) by total strain theory

m =\frac{\sigma _{y}}{p}

m = \frac{300}{80} = 3.75

we know that

K = \frac{r_{2}}{r_{1} }

\frac{K^{3}+1}{K^{3}-1}= \frac{-2\mu +\sqrt{4\mu^{2}-2(1-\mu)(1-m^{^{2}}))}}{1-\mu}

\frac{K^{3}+1}{K^{3}-1}= \frac{-2*0.3 +\sqrt{4*0.3^{2}-2(1-0.3)(1-3.75^{^{2}}))}}{1-0.3}

\frac{K^{3}+1}{K^{3}-1}= 5.3

k = 1.13

1.13 = \frac{r_{2}}{150 }

r_{2} = 170.36 mm

t = r_{2}-r_{1}

t = 170.36 - 150

t = 20.36

5 0
4 years ago
If an older multimeter is set to display its reading in megohms, what must you do to determine the correct value? Please help.
Gekata [30.6K]

Answer:

idk

Explanation:

8 0
3 years ago
Question 2) A material that is malleable can be defined as:
Reil [10]

Answer:

A.

Explanation:

Able to return to it's original shape after distortion.

7 0
3 years ago
What’s the difference between quality and quantity
Lesechka [4]
Quality is how good something is. Like how good the material is. Like the quality of the IPhone X is better than the quality of the iPhone 6s + because it has more features and can sustain better hold
Quantity is how much. Like the quantity of the m&ms were split evenly.
I dont know exactly if that makes sense but there ya go
YW!
4 0
3 years ago
Read 2 more answers
The shaft is hollow from A to B and solid from B to C. The shaft has an outer diameter of 79 mm, and the thickness of the wall o
SVETLANKA909090 [29]

Answer:

<u><em>Maximum Shear Stress is 62.0 MPA </em></u>

Explanation:

<h2><u /></h2><h3><u>Please refer to the attachment below for explanation.</u></h3>

7 0
4 years ago
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