Answer:
Between 35°– 45°
Explanation:
In the vertical position, Point the flame in the direction of travel. Keep the flame tip at the correct height above the base metal. An angle of 35°–45° should be maintained between the torch tip and the base metal. This angle may be varied up or down to heat or cool the weld pool if it is too narrow or too wide
Answer: Coefficient= 0.35 per day
Explanation:
To find the bio degradation reaction rate coefficient, we have
k= 
Here, the C lagoon= 20 mg/L
Q in= Q out= 8640 m³/d
C in= 100 mg/L
C out= 20 mg/L
V= 10 ha* 1* 10
V= 10⁵ m³
So, k= 
k= 0.35 per day
Answer:
Explanation:
From the information given:

The total load is distributed across both the rod and tube:

Since this is a composite column; the elongation of both aluminum rod & steel tube is equal.






Replace
into equation (1)

Finally, to determine the normal stress in aluminum rod:


Thus, the normal stress = 23.523 MPa in compression.