SSC JE Electrical 2018 with solution SET-1
 Starting winding of a single-phase motor of a refrigerator is disconnected from the circuit by means of a

Magnetic Relay
None of these
Thermal Relay
Centrifugal Switch

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SSC JE Electrical 2018 with solution SET-1
A DC generator used for ARC welding should Have

Dropping Characteristics
None of these
Straight characteristics
Rising characteristics

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SSC JE Electrical 2018 with solution SET-1
Which type of insulation covering the conductor used for low voltages?

Paper
Cotton and silk Insulation
Poly-vinyl Chloride(P.V.C)
Vulcanised Indian Rubber

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SSC JE Electrical 2018 with solution SET-1
 Determine the magnitude of EMF (in V) induced between the axis of rotation and the rim of the disc, when the disc of radius 10 cm rotates with an angular velocity of 60 revolutions per second and placed in the magnetic field of 3 T acting parallel to the rotation of the disc

6.67
4.64
6.69
5.65

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SSC JE Electrical 2018 with solution SET-1
If the centrifugal switch does not open at 70 to 80 percent of a synchronous speed of the motor, it would result in

None of these
Overloading of running winding
Damage to the starting winding
Damage to the centrifugal switch

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