In the circuit shown, if R = 0, then the phase angle between v(t) and i(t) is<br/>

SSC JE Electrical 2019 with solution SET-1
In the circuit shown, if R = 0, then the phase angle between v(t) and i(t) is

90°

0°

30°

60°

90°

0°

30°

60°

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SSC JE Electrical 2019 with solution SET-1
Which of the following losses is together called iron losses?

Eddy current loss and frictional loss

Hysteresis loss and copper loss

Hysteresis loss and frictional loss

Eddy current loss and hysteresis loss

Eddy current loss and frictional loss

Hysteresis loss and copper loss

Hysteresis loss and frictional loss

Eddy current loss and hysteresis loss

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SSC JE Electrical 2019 with solution SET-1
______starting method CANNOT be used for starting a 3-phase squirrel cage induction motor

Direct-on-line

Star-delta

Rotor-resistance

Auto-transformer

Direct-on-line

Star-delta

Rotor-resistance

Auto-transformer

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SSC JE Electrical 2019 with solution SET-1
Reflected Light/Incident Light =

Reflection factor

Absorption factor

Waste light factor

Maintenance factor

Reflection factor

Absorption factor

Waste light factor

Maintenance factor

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SSC JE Electrical 2019 with solution SET-1
What is the reason behind using a centrifugal switch in a single-phase induction motor?

To out in the capacitor during running conditions

To cut-off the starting winding at an appropriate instant

To protect the motor from overloading

To improve the starting performance of the motor

To out in the capacitor during running conditions

To cut-off the starting winding at an appropriate instant

To protect the motor from overloading

To improve the starting performance of the motor

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SSC JE Electrical 2019 with solution SET-1
Identify the INCORRECT statement with regards to synchronous motors

It is a self-starting machine

The field winding is placed on the rotor

The armature winding is placed on the stator

It is a constant speed motor

It is a self-starting machine

The field winding is placed on the rotor

The armature winding is placed on the stator

It is a constant speed motor

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 In the circuit shown, if R = 0, then the phase angle between v(t) and i(t) is

SSC JE Electrical 2019 with solution SET-1 Which of the following losses is together called iron losses?

SSC JE Electrical 2019 with solution SET-1 ______starting method CANNOT be used for starting a 3-phase squirrel cage induction motor

SSC JE Electrical 2019 with solution SET-1 Reflected Light/Incident Light =

SSC JE Electrical 2019 with solution SET-1 What is the reason behind using a centrifugal switch in a single-phase induction motor?

SSC JE Electrical 2019 with solution SET-1 Identify the INCORRECT statement with regards to synchronous motors

SSC JE Electrical 2019 with solution SET-1
In the circuit shown, if R = 0, then the phase angle between v(t) and i(t) is

SSC JE Electrical 2019 with solution SET-1
Which of the following losses is together called iron losses?

SSC JE Electrical 2019 with solution SET-1
______starting method CANNOT be used for starting a 3-phase squirrel cage induction motor

SSC JE Electrical 2019 with solution SET-1
Reflected Light/Incident Light =

SSC JE Electrical 2019 with solution SET-1
What is the reason behind using a centrifugal switch in a single-phase induction motor?

SSC JE Electrical 2019 with solution SET-1
Identify the INCORRECT statement with regards to synchronous motors