Electrical Measurements Errors Single Phase Energy Meters Online Exam Quiz
Electrical Measurements Errors Single Phase Energy Meters GK Quiz. Question and Answers related to Electrical Measurements Errors Single Phase Energy Meters. MCQ (Multiple Choice Questions with answers about Electrical Measurements Errors Single Phase Energy Meters
In some energy meters, creeping can be avoided by __________
Options
A : attaching small gold pieces
B : attaching small aluminium pieces
C : attaching small iron pieces
D : attaching small zinc pieces
Supply voltage in an energy meter is __________
Options
A : constant always
B : zero always
C : depends on the load
D : can fluctuate
Magnitude of flux in an energy meter varies __________
Options
A : due to abnormal currents and voltages
B : due to high resistance and inductance values
C : due to changes in the transformer turns
D : due to the induced e.m.f in the windings
Energy meter creeps __________
Options
A : due to change in supply
B : due to reversal in polarity of voltage
C : due to asymmetry in magnetic circuit
D : due to turns ratio of transformer
How is the flux of shunt coil related to voltage?
Options
A : flux is proportional to square of voltage
B : directly proportional
C : inversely proportional
D : independent of each other
Creeping is avoided by __________
Options
A : reversing the polarity of the voltage
B : drilling two diametrically opposite holes
C : holding the disc
D : increasing the friction
How can temperature effect be compensated in an energy meter?
Options
A : through heat sinks
B : by a temperature shunt
C : by using resistance
D : by using a coolant
Disc rotates slowly in some energy meters.
Options
A : True
B : False
C :
D :
Phase angles in an energy meter cannot be incorrect.
Options
A : True
B : False
C :
D :
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