In the two wattmeter method, the readings of the two wattmeters are 500W, 500W respectively. The load power factor in a balanced 3-phase 3-wire circuit is:

SSC JE Electrical 2019 with solution SET-1
In the two wattmeter method, the readings of the two wattmeters are 500W, 500W respectively. The load power factor in a balanced 3-phase 3-wire circuit is:

0.5

0.9

0.8

1

0.5

0.9

0.8

1

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SSC JE Electrical 2019 with solution SET-1
Z1 and Z2 are connected in series to form a load. A wattmeter’s current coil is connected in series with the load, whereas its pressure coil is connected across Z2. The wattmeter reads

Power consumed by Z1

Zero always

Power consumed by Z2

Power consumed by Z1 and Z2

Power consumed by Z1

Zero always

Power consumed by Z2

Power consumed by Z1 and Z2

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

Hysteresis loss and frictional loss

Eddy current loss and frictional loss

Eddy current loss and hysteresis loss

Hysteresis loss and copper loss

Hysteresis loss and frictional loss

Eddy current loss and frictional loss

Eddy current loss and hysteresis loss

Hysteresis loss and copper loss

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SSC JE Electrical 2019 with solution SET-1
In a single-phase capacitor start-and-run motor, the minimum number of capacitors to be used in it is:

3

1

2

4

3

1

2

4

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SSC JE Electrical 2019 with solution SET-1
Let T be the net torque developed by the rotor runs at ω rad/s. What is the mechanical power developed?

Pmech = (ωT)/60

Pmech = ωT

Pmech = (2πωT)/60

Pmech = (2πωT)

Pmech = (ωT)/60

Pmech = ωT

Pmech = (2πωT)/60

Pmech = (2πωT)

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SSC JE Electrical 2019 with solution SET-1
Identify the machine shown in the circuit

DC shunt motor

DC long shunt compound generator

DC short shunt compound generator

DC short shunt compound motor

DC shunt motor

DC long shunt compound generator

DC short shunt compound generator

DC short shunt compound motor

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 In the two wattmeter method, the readings of the two wattmeters are 500W, 500W respectively. The load power factor in a balanced 3-phase 3-wire circuit is:

SSC JE Electrical 2019 with solution SET-1 Z1 and Z2 are connected in series to form a load. A wattmeter’s current coil is connected in series with the load, whereas its pressure coil is connected across Z2. The wattmeter reads

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 In a single-phase capacitor start-and-run motor, the minimum number of capacitors to be used in it is:

SSC JE Electrical 2019 with solution SET-1 Let T be the net torque developed by the rotor runs at ω rad/s. What is the mechanical power developed?

SSC JE Electrical 2019 with solution SET-1 Identify the machine shown in the circuit

SSC JE Electrical 2019 with solution SET-1
In the two wattmeter method, the readings of the two wattmeters are 500W, 500W respectively. The load power factor in a balanced 3-phase 3-wire circuit is:

SSC JE Electrical 2019 with solution SET-1
Z1 and Z2 are connected in series to form a load. A wattmeter’s current coil is connected in series with the load, whereas its pressure coil is connected across Z2. The wattmeter reads

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
In a single-phase capacitor start-and-run motor, the minimum number of capacitors to be used in it is:

SSC JE Electrical 2019 with solution SET-1
Let T be the net torque developed by the rotor runs at ω rad/s. What is the mechanical power developed?

SSC JE Electrical 2019 with solution SET-1
Identify the machine shown in the circuit