Name the logic gate equivalent to the diagram attached

Let's assume that when the path is short, the state is called state $1$ and when it is open, the state is called state $0$.

Depending up on whether the path is short or not in the circuit, the following table can be obtained:

$A$	$B$	$Out$
$1$	$1$	$0$
$1$	$0$	$0$
$0$	$1$	$0$
$0$	$0$	$1$

The above table is similar to the truth table corresponding to $NOR$ gate. Hence, the circuit indicates a $NOR$ logic gate.