Converting bool expression to char in c#

Question

I passed .NET quiz, when I met a question like below one.

Char ch = Convert.ToChar(\'a\' | \'e\' | \'c\' | \'a\');

In console we can see that o

Answer 1

"|" is the binary OR operator.

'a' binary representation is 01100001
'e' binary representation is 01100101
'c' binary representation is 01100011

The result of the OR is 01100111, whose char representation is g