DC Generators The insulating material used between the commutator segments is normally Mica Insulating varnish Paper Graphite Mica Insulating varnish Paper Graphite ANSWER DOWNLOAD EXAMIANS APP
DC Generators Carbon brushes are used in a dc machine because _______ Contact resistance is decreased Carbon lubricates and polishes the commutator None of the listed here Carbon is cheap Contact resistance is decreased Carbon lubricates and polishes the commutator None of the listed here Carbon is cheap ANSWER DOWNLOAD EXAMIANS APP
DC Generators While applying Fleming's right-hand rule to and the direction of induced e.m.f., the thumb points towards Direction of induced e.m.f. Direction of flux Direction of motion of the conductor if forefinger points in the direction of generated e.m.f. Direction of motion of conductor, if forefinger points along the lines of flux Direction of induced e.m.f. Direction of flux Direction of motion of the conductor if forefinger points in the direction of generated e.m.f. Direction of motion of conductor, if forefinger points along the lines of flux ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following generating machine will offer constant voltage on all loads? All of these Separately excited generator Level compounded generator Self-excited generator All of these Separately excited generator Level compounded generator Self-excited generator ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a long shunt compound wound generator , the shunt field is connected in parallel with Armature Series field Parallel combination of armature and series field Series combination of armature and series field Armature Series field Parallel combination of armature and series field Series combination of armature and series field ANSWER DOWNLOAD EXAMIANS APP
DC Generators The yoke of a dc machine carries ______ pole flux. One-half of Two times the Three times None of the listed here One-half of Two times the Three times None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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