What is the reason behind using a centrifugal switch in a single-phase induction motor?

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

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

To out in the capacitor during running conditions

To cut-off the starting winding at an appropriate instant

To protect the motor from overloading

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SSC JE Electrical 2019 with solution SET-1
If admittance Y= a + jb, then a =?

Conductance

Resistance

Reactance

Susceptance

Conductance

Resistance

Reactance

Susceptance

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SSC JE Electrical 2019 with solution SET-1
Identify the important feature of a DC series motor

Zero starting torque

Low starting torque

Medium starting torque

High starting torque

Zero starting torque

Low starting torque

Medium starting torque

High starting torque

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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
The resistive component of the rotor with resistance R2 offered to the backward rotating flux wave in a single-phase motor runs with slip s is given as

R2 ⁄ (1 − S)

R2 ⁄ (2 − S)

R2 ⁄ S

R2 ⁄ (1 + S)

R2 ⁄ (1 − S)

R2 ⁄ (2 − S)

R2 ⁄ S

R2 ⁄ (1 + S)

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

Current transformer

Circuit breaker

Potential transformer

Power transformer

Current transformer

Circuit breaker

Potential transformer

Power transformer

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SSC JE Electrical 2019 with solution SET-1

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 If admittance Y= a + jb, then a =?

SSC JE Electrical 2019 with solution SET-1 Identify the important feature of a DC series motor

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 The resistive component of the rotor with resistance R2 offered to the backward rotating flux wave in a single-phase motor runs with slip s is given as

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
What is the reason behind using a centrifugal switch in a single-phase induction motor?

SSC JE Electrical 2019 with solution SET-1
If admittance Y= a + jb, then a =?

SSC JE Electrical 2019 with solution SET-1
Identify the important feature of a DC series motor

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
The resistive component of the rotor with resistance R2 offered to the backward rotating flux wave in a single-phase motor runs with slip s is given as

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