১৬০৮১
The zero sequence impedance of different elements of power system is generally -
উত্তর
different
১৬০৮২
The nature of armature winding of a d.c. machine is decided by ………..
উত্তর
commutator pitch
১৬০৮৪
When a D.C. series motor is connected to A.C. supply, the power factor will be low because of -
উত্তর
high inductance of field and armature circuits
১৬০৮৫
Sheaths are used in power in cables to -
উত্তর
prevent moisture from entering the cable
১৬০৮৭
Use of bundle conductors causes the critical voltage for corona formation -
উত্তর
to increase
১৬০৮৯
Two lamps of 100W and 220W rated for 220V are placed in series and a 440V applied across them. Then
উত্তর
only 100W lamp will fuse
১৬০৯০
The rating of a circuit breaker is usually determined on the basis of -
উত্তর
symmetrical fault