Dc Machines Methods Excitation Online Exam Quiz
Dc Machines Methods Excitation GK Quiz. Question and Answers related to Dc Machines Methods Excitation. MCQ (Multiple Choice Questions with answers about Dc Machines Methods Excitation
In which type of excitation air gap flux increases with armature current?
Options
A : Differential compound
B : Cumulative compound
C : Differential and Cumulative
D : Cannot be determined
Which is more practical method used in control of series field?
Options
A : Diverter
B : Tappings
C : Switch relay
D : Cannot be determined
How shunt field is controlled?
Options
A : Diverter resistor in parallel
B : Tapped field winding
C : Series regulating resistance
D : Other methods
In differential compound excited machine, what is the variation in air gap flux per pole with respect to armature current?
Options
A : Increases
B : Decreases
C : Remains constant
D : Always varies
How short shunt and long shunt compound winding is selected?
Options
A : Mechanical considerations
B : Switch reversal
C : Performance
D : Mechanical considerations and switch reversal
Which winding in compound excitation is responsible for change in air gap flux per pole?
Options
A : Series
B : Parallel
C : Interconnected
D : No coil is responsible
Vt= Ea– Ia(Ra+ Rse) is the equation for _______________
Options
A : Short shunt compound motoring mode
B : Short shunt compound generating mode
C : long shunt compound motoring mode
D : Cannot be determined
In compound excitation, which winding/s is/are excited?
Options
A : Shunt
B : Series
C : Both
D : Cannot be determined
Which winding has large number of turns?
Options
A : Shunt field
B : Series field
C : Both have same number of turns
D : Depends on requirement
Which winding have higher resistance?
Options
A : Shunt field
B : Series field
C : Both have same number of turns
D : Depends on requirement
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