The below symbol which is used in single line diagrams represents<br/>

SSC JE Electrical 2019 with solution SET-1
The below symbol which is used in single line diagrams represents

Circuit breaker

Potential transformer

Power transformer

Current transformer

Circuit breaker

Potential transformer

Power transformer

Current transformer

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SSC JE Electrical 2019 with solution SET-1
If dΦ is the luminous flux incident normally on an area dA, then Illuminance is given as

dΦ ⁄ dA

Φ × A

dA ⁄ dΦ

dΦ − dA

dΦ ⁄ dA

Φ × A

dA ⁄ dΦ

dΦ − dA

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SSC JE Electrical 2019 with solution SET-1
A synchronous motor runs at 600rpm, which of the following case is true?

P = 12, f = 60 Hz

P= 12, f = 50 Hz

P = 10, f = 60 Hz

P = 8, f = 50 Hz

P = 12, f = 60 Hz

P= 12, f = 50 Hz

P = 10, f = 60 Hz

P = 8, f = 50 Hz

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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

0°

90°

60°

30°

0°

90°

60°

30°

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SSC JE Electrical 2019 with solution SET-1
In a capacitor start single phase induction motor the current in the:

Starting winding lags the voltage

The main winding leads the voltage

Starting winding leads the voltage

Supply lines lead the voltage

Starting winding lags the voltage

The main winding leads the voltage

Starting winding leads the voltage

Supply lines lead the voltage

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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 improve the starting performance of the motor

To protect the motor from overloading

To cut-off the starting winding at an appropriate instant

To out in the capacitor during running conditions

To improve the starting performance of the motor

To protect the motor from overloading

To cut-off the starting winding at an appropriate instant

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 The below symbol which is used in single line diagrams represents

SSC JE Electrical 2019 with solution SET-1 If dΦ is the luminous flux incident normally on an area dA, then Illuminance is given as

SSC JE Electrical 2019 with solution SET-1 A synchronous motor runs at 600rpm, which of the following case is true?

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 In a capacitor start single phase induction motor the current in the:

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
The below symbol which is used in single line diagrams represents

SSC JE Electrical 2019 with solution SET-1
If dΦ is the luminous flux incident normally on an area dA, then Illuminance is given as

SSC JE Electrical 2019 with solution SET-1
A synchronous motor runs at 600rpm, which of the following case is true?

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
In a capacitor start single phase induction motor the current in the:

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