Many of the substances in welding smoke, such as chromium, nickel, arsenic, asbestos, manganese, silica, beryllium, cadmium, nitrogen oxides, phosgene, acrolein, fluorine compounds, carbon monoxide, cobalt, copper, lead, ozone, selenium, and zinc, can be extremely toxic.
Answer:

Explanation:
This question will be solved with the help of diagram (see attachment)
Given:
Δ∅ = 0.50 degrees (correction)
BC = 800 mm
AC = 600 mm
Solution:
We use coordinate system with point C as origin (0,0)
Hence,
Point A = (600,0)
Point B = (0,800)
The change in length or displacement can be calculated BB' :
BB' = BC * tan (Δ∅) = (800 mm) * tan (0.5) = 6.9815 mm
Hence, Point B' = (-6.9815,800) and we calculate distance A and B

We calculate distance A and B'

Normal Strain in AB is:

The solution is :

Answer:
The average loss for this device is $10.90
Explanation:
Given data
Specification = 24 +/- 0.4 Amps
average quality cost = $32.00
average value y = 23.9
standard deviation s = 0.211 Amps
32 = k(24.4 - 24)²
32 = k(0.4)² = k(0.16)
k = 32/0.16 = 200
To evaluate average loss, use
L = k{s² + (y - T)²}
T = 24A
L = 200{0.211² + (23.9 - 24)²}
L = $10.90
The average loss for this device is $10.90
Answer:
You're answer would be "D. Perform all of the above"
Explanation:
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