ESTIMATION AND COSTING OF WIRING - Quiz

1) Which factor determines the size of wire used for industrial wiring?

Type of wiring distance Distance from source Line voltage Load current

2) Which is the distance of saddles to be fixed from the centre of bends (or) couplings in metal circuit wiring?

60cm 50cm 30cm 15cm

3) Which is the alpha numberic rotation for apparatus AC 3 phase system?

A,B,C,N X,Y,Z,N U,V,W,N A,B,C,N

4) Which is the minimum size of copper conductor used for power wiring in commercial wiring as per IE rule?

1 mm² 1.5 mm² 2.0 mm² 2.5 mm²

5) Which is the minimum size of PVC conduit used in government installations prescribed by CPWD?

20mm 16mm 19mm 32mm