A control system is needed to alert an attendant for the following situation. Which of the following is the Boolean equation expressing the electronics you would need?

Either the tank is filled and the pump is on, or the tank is empty.
(Use A = tank filled, B = pump on, X = output = alert on.)

To find the Boolean equation expressing the electronics needed for the situation described, we can break down the given condition into its logical components and then form the equation.

Let's assign the variables as follows:
A = tank filled
B = pump on
X = output (alert on)

According to the given situation, we want to alert an attendant if either of the following conditions is true:
1. The tank is filled and the pump is on.
2. The tank is empty.

Now let's express these conditions in Boolean logic:

1. The tank is filled and the pump is on: A AND B
2. The tank is empty: A' (A prime, which represents the negation of A)

To alert the attendant for either condition to be true, we can use the logical OR operation (represented by + or ∨).

Therefore, the Boolean equation expressing the electronics needed in this situation would be:

X = (A AND B) + A'

This equation states that the output (X) will be true (alert on) when either the tank is filled and the pump is on or when the tank is empty.