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WorksheetsPRE TEST ON DC GENERATOR - EE - II - UNIT 4
Total questions: 10
Worksheet time: 5mins
DC Generator converts --------------------energy into ----------energy.
mechanical, electrical
electrical, mechanical
kinetic, mechanical
potential, electrical
DC Generators works on the ---------- principle
Lenz's law
Lorentz Law
ohm's law
Faraday's law of ElectromagneticInduction
DC stands for ----------------------------
direct control
division control
division current
direct current
EMF equation for DC generator is -------------
Eg = PΦNZ / 120A
Eg = PΦNZ / 60A
Eg = PΦNA / 60Z
Eg = PΦNZ / 160A
Eg = PΦNZ / 60A what is Z?
Impedance
Armature Conductor
field winding
field coil
The induced current in the DC generator can be found by ---------
Faraday's law
Fleming's Right Hand Rule
Ohm's law
Lowrent'z law
WHICH TYPE OF DC GENERATOR HAS TWO FIELD WINDINGS?
SERIES
SHUNT
COMPOUND
MARK THE LOSSES WHICH OCCURS IN DC GENERATOR
COPPER LOSS
IRON LOSS
STRAY LOSS
MECHANICAL LOSS
EFFICIENCY OF RELIABLE DC GENERATOR
90% - 99%
85% - 95%
50% - 69%
70% - 84%
For Generating large current on D.C generators which winding is generally preferred
Progressive wave winding
Lap Winding
Retrogressive Lap winding
Current depends on design
