A DC shunt generator builds up to a voltage of 220 V at no load while running at its rated speed. If the speed of the generator is raised by 25% kepping the circuit conditions unaltered, then the Voltage to which the machine would build up will

Electrical Machines
A DC shunt generator builds up to a voltage of 220 V at no load while running at its rated speed. If the speed of the generator is raised by 25% kepping the circuit conditions unaltered, then the Voltage to which the machine would build up will

increase to a value greater than 1.25 times 220 V

increase to 1.25 times 220 V

increase to value lying between 220 V and 1.25 times 220 V

not change and remain at 220 V

increase to a value greater than 1.25 times 220 V

increase to 1.25 times 220 V

increase to value lying between 220 V and 1.25 times 220 V

not change and remain at 220 V

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Two windings provided on the stator of 1-phase induction motor, one main winding and the other auxiliary winding are connected

either of these depending on the design of the motor

in series

in parallel

through inductive coupling

either of these depending on the design of the motor

in series

in parallel

through inductive coupling

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A voltmeter gives 120 oscillations per minute when connected to the rotor of an induction motor. The frequency is 50Hz. The slip of the motor is

5%

4%

25%

2%

5%

4%

25%

2%

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a loaded DC generator, if the brushes are given a shift from the interpolar axis in the direction of rotation, then the commutation will

deteriorate with rise in terminal voltage.

improve with rise in terminal voltage.

deteriorate with fall of terminal voltage.

improve with fall of terminal voltage.

deteriorate with rise in terminal voltage.

improve with rise in terminal voltage.

deteriorate with fall of terminal voltage.

improve with fall of terminal voltage.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 220 V, DC shunt motor is operating at a speed of 1440 rpm. The armature resistance is 1.0 Ω and armature current is 10 A. of the excitation of the machine is reduced by 10%, the extra resistance to be put in the armature circuit to maintain the same speed and torque will be

1.79 Ω

1.8 9 Ω

2 .1 Ω

3.1 Ω

1.79 Ω

1.8 9 Ω

2 .1 Ω

3.1 Ω

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A compound motor has

only series field winding.

tertiary winding.

only shunt field winding.

both shunt and series field winding.

only series field winding.

tertiary winding.

only shunt field winding.

both shunt and series field winding.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines

Electrical Machines A DC shunt generator builds up to a voltage of 220 V at no load while running at its rated speed. If the speed of the generator is raised by 25% kepping the circuit conditions unaltered, then the Voltage to which the machine would build up will

Electrical Machines Two windings provided on the stator of 1-phase induction motor, one main winding and the other auxiliary winding are connected

Electrical Machines A voltmeter gives 120 oscillations per minute when connected to the rotor of an induction motor. The frequency is 50Hz. The slip of the motor is

Electrical Machines In a loaded DC generator, if the brushes are given a shift from the interpolar axis in the direction of rotation, then the commutation will

Electrical Machines A 220 V, DC shunt motor is operating at a speed of 1440 rpm. The armature resistance is 1.0 Ω and armature current is 10 A. of the excitation of the machine is reduced by 10%, the extra resistance to be put in the armature circuit to maintain the same speed and torque will be

Electrical Machines A compound motor has

Electrical Machines
A DC shunt generator builds up to a voltage of 220 V at no load while running at its rated speed. If the speed of the generator is raised by 25% kepping the circuit conditions unaltered, then the Voltage to which the machine would build up will

Electrical Machines
Two windings provided on the stator of 1-phase induction motor, one main winding and the other auxiliary winding are connected

Electrical Machines
A voltmeter gives 120 oscillations per minute when connected to the rotor of an induction motor. The frequency is 50Hz. The slip of the motor is

Electrical Machines
In a loaded DC generator, if the brushes are given a shift from the interpolar axis in the direction of rotation, then the commutation will

Electrical Machines
A 220 V, DC shunt motor is operating at a speed of 1440 rpm. The armature resistance is 1.0 Ω and armature current is 10 A. of the excitation of the machine is reduced by 10%, the extra resistance to be put in the armature circuit to maintain the same speed and torque will be

Electrical Machines
A compound motor has