Can we have more than one arbiter in monogodb replica set
There is no need in having 2 arbiters.

The minimum recommended replica set consists of THREE servers and is:


a primary
a secondary
an arbiter


the arbiter can be on either machines, but it is recommended to be on a separate machine (VM or anything) so that it won't go down with one of the servers if something goes wrong.

You could use multiple arbiters but if you have only two machines, it will do you no good because you always need n/2 + 1 servers for a succesful election.