Related Questions

Multilayer helical windings are commonly used in the transformers as high voltage windings
A upto 20 kV
B upto 50 kV
C upto 80 kV
D for 110 kV and above
The insulation between windings and grounded core and the insulation between the windings of the same phase is
A minor insulation
B major insulation
C either of the above
D none of the above
Two generators are running in parallel. One of the generators may run as motor for which of the following reasons?
A The direction of that generator is reversed
B The speed of that generator is increased
C The field of that generator is weakened
D That generator takes large share of loads
In case of conductively compensated D.C. series motors, the compensating winding is provided
A As separately wound unit
B In parallel with armature winding
C In series with armature winding
D In parallel with field winding
In A.C. series motor compensating winding is employed to
A reduce the effects of armature reaction
B increase the torque
C reduce sparking at the brushes
D none of the above
The compensating jet in a carburettor supplies almost constant amount of petrol at all speeds because the
A Jet area is automatically varied depending on the suction
B The flow from the main jet is diverted to the compensating jet with increase in speed
C The diameter of the jet is constant and the discharge coefficient is invariant
D Flow is produced due to the static head in the float chamber
If a seller recovers his capital along with accumulated compensating interest not in one single lump-sum payment but in periodical equal payments, over time:
A Capital Recovery Annuity fs availed
B Present work Annuity is availed
C Sinking Fund Annuity is availed
D Sinking Fund Annuity is availed
In a low power factor wattmeter the compensating coil is connected
A in series with current coil
B in parallel with current coil
C in series with pressure coil
D in parallel with pressure coil
The cylindrical windings using circular conductors are used for current rating of
A upto 20 A
B upto 40 A
C upto 60 A
D upto 80 A
Disc windings are primarily used in
A short capacity transformers
B medium capacity transformers
C high capacity transformers
D any of the above

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