a large fiberglass tank was placed in a pit, before pipes could be attached and the tank filled with gasoline, the workers were asked to move the tank to another location.
which of the following suggestions would be the best way to raise the tank off the bottom of the pit so cables could be placed under the tank?
1)fill the tank with gasoline.
2)fill the tank with water
3)fill the pit with water
4)fill the pit with water and the tank with gasoline
5)fill both the pit and the tank with water
3. (Use buoyancy to help raise the empty tank.)
Fill the pit with water
What is the ans.
To raise the tank off the bottom of the pit so that cables can be placed underneath it, the best suggestion would be to fill the tank with water (option 2).
Explanation:
By filling the tank with water, it will become buoyant and float on the surface of the water in the pit. This allows the workers to easily slide cables or any other lifting equipment underneath the tank to lift it.
Let's go through the other options to understand why they are not the optimal choices:
1) If the tank is filled with gasoline (option 1), it may not provide enough buoyancy to lift the tank off the bottom of the pit. Additionally, using gasoline in this manner can be potentially hazardous due to its flammable nature.
3) Filling the pit with water (option 3) alone may not provide adequate buoyancy to lift the tank. The pit itself should not need to be filled with water; the focus should be on the tank.
4) Filling the pit with water and the tank with gasoline (option 4) combines the risks of gas leakage and the potential hazards of working with gasoline in a confined space.
5) Filling both the pit and the tank with water (option 5) is unnecessary as only filling the tank with water is sufficient to achieve the desired outcome, and filling the pit with water may complicate the process without adding any benefit.