Hello, I think out tutor gave us a faulty example, so I modified it as I thought correct.
Can anyone confirm if this truth table is a correct representation of the logic diagram ?

Thanks in advance.

 

I am afraid but I don't agree with representation of logic diagram.
the right one is Out = A`+B`

 

I haven't seen logic diagrams with symbols like this.

I assume the 2-input blocks with the \(\ge\) are OR gates (outputs TRUE if either, or both inputs are TRUE).

Also, I'm guessing that the 1-input gate with the "1" inside and the inverted output is a NOT gate.

Obviously the gate with the "&" represents an AND gate.

If I am correct in the above assumptions, your logic equation is correct:
\(\left( \overline{A + B} \right) + \overline{B}C\)

...but your truth table is incorrect.

 

Those symbols are IEC standards. Visit http://www.kpsec.freeuk.com/symbol.htm for more info

 

No, the truth table is wrong.

Be more careful when filling the truth table. Do you know how to do the process of filling the table?