We consider constraint qualifications for truss topology optimization problems, in particular LICQ, MFCQ, MPVC-LICQ, MPVC-MFCQ, MPCC-LICQ, and MPCC-MFCQ. Several examples are presented in which some or all of these constraint qualifications are violated. We also see examples in which some of the constraint qualifications hold at the optimal solution. This indicates, that constraint qualifications might hold for truss topology optimization problems.