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A shunt generator running at 1000 r.p.m. has generated e.m.f. as 200 V. If the speed increases to 1200 r.p.m., the generated e.m.f. will be nearly_______________?
Related MCQs
A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will__________?
The purpose of providing dummy coils in a generator is__________?
In D.C. generators on no-load, the air gap flux distribution in space is__________?
The terminal voltage of a D.C. shunt generator drops on load because of all of the following reasons except:__________?
In a D.C. generator in order to reduce sparking at brushes, the self-induced e.m.f. in the coil is neutralised by all of the following except__________?
In a D.C. generator the magnetic neutral axis coincides with the geometrical neutral axis, when__________?
In a level compounded D.C. generator, full load terminal voltage is__________?
The e.m.f. generated in a D.C. generator is directly proportional to__________?
In D.C. generators the polarity of the interpoles__________?
In over compounded generator, full load terminal voltage is__________?
Permeance is the reciprocal of__________?
Which of the following D.C. generators will be in a position to build up without any residual magnetism in the poles?
Which of the following generator will have negligible terminal voltage while running on no-load?
In a D.C. generator the number of mechanical degrees and electrical degrees will be the same when__________?
D.C. generator generally preferred for charging automobile batteries is__________?
In case of a flat compounded generator:
Interpole flux should be sufficient to__________?
Following D.C. generator will be in a position to build up without any residual magnetism in the poles__________?
An exciter for a turbo generator is a__________?
D.C. series generator is used__________?
In a D.C. generator in case the resistance of the field winding is increased, then output voltage will__________?
For the parallel operation of two or more D.C. compound generators, we should ensure that__________?
Open circuited armature coil of a D.C. machine is__________?
Lap winding is composed of__________?
Satisfactory commutation of D.C. machines requires__________?
In a D.C. machine stray loss is the sum of__________?
The armature core of a D.C. generator is usually made of__________?
In any rotating machine that part which houses the conductors and in which e.m.f. induced is to be utilized is called__________?
The e.m.f. generated by a shunt wound D.C. generator isE. Now while pole flux remains constant, if the speed of the generator is doubled, the e.m.f. generated will be__________?
A D.C. generator can be considered as__________?
The voltage drop for which of the following types of brush can be expected to be least ?
Number of tappings for each equalizer ring is equal to__________?
Two generators A and B have 6-poles each. Generator A has wave wound armature while generator B has lap wound armature. The ratio of the induced e.m.f. is generator A and B will be__________?
In D.C. generators, lap winding is used for__________?
In a D.C. generator the ripples in the direct e.m.f. generated are reduced by__________?
The rapid wear of brushes takes place due to__________?
Which of the following components of a D.C, generator plays vital role for providing direct current of a D.C. generator ?
Compensating windings are used in D.C. generators__________?
The following constitute short-circuit in the armature winding.
The number of brushes in a commutator depends on__________?
Magnetic field in a D.C. generator is produced by__________?
To avoid formation of grooves in the commutator of a D.C. machine?
The demagnetising component of armature reaction in a D.C. generator__________?
A cumulatively compounded long shunt generator when operating as a motor would be__________?
Armature coil is short circuited by brushes when it lies__________?
Which of the following statement about D.C. generators is false ?
To achieve sparkless commutation brushes of a D.C. generator are rockedm ahead so as to bring them?
A D.C. welding generator has__________?
In a D.C. generator the critical resistance refers to the resistance of__________?
The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be__________?
In the case of lap winding resultant pitch is__________?
A shunt generator running at 1000 r.p.m. has generated e.m.f. as 200 V. If the speed increases to 1200 r.p.m., the generated e.m.f. will be nearly_______________?
A. 150 V
B. 175 V
C. 240 V
D. 290 V
Correct Answer:
240 V
✔
Last Updated:
July 05, 2018