Answer:
t=2.025 inches
Explanation:
Given that
P = 400 Psi
Yield stress ,σ = 80 ksi
Diameter ,d= 45 ft
We know that
1 ft = 12 inches
d= 540 inches
Factor of safety ,K= 3
The required thickness given as

t=thickness


t=2.025 inches
Therefore thickness will be 2.025 inches.
Explanation:
first changing kilo ohm to ohm
860000 = 860 kΩ
and change 34 micro ampare to ampare
34 μA=3.4×10^-5
recalling the equation V=I*R
V= 3.4×10^-5×860000
v=29.24
Answer:
Sense the current leakage
Trip the circuit
Cut off the electricity
Explanation:
The correct order is -
Sense the current leakage
Trip the circuit
Cut off the electricity
Reason -
First step has to be taken to sense the electric current leakage without it being detected, it cant be dealt with.
The second step consists of tripping the circuit so at to remove the flow of electricity.
The third step is to Cut the electricity off so to stop the leakage and be safe.