What would the total loss of the 2kVA transformer corresponding to maximum efficiency be, provided the transformer has the iron of 150 W and full-load copper loss of 250W?

SSC JE Electrical 2019 with solution SET-1
What would the total loss of the 2kVA transformer corresponding to maximum efficiency be, provided the transformer has the iron of 150 W and full-load copper loss of 250W?

100 W

300 W

400 W

500 W

100 W

300 W

400 W

500 W

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

Conductance

Susceptance

Reactance

Resistance

Conductance

Susceptance

Reactance

Resistance

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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:

0.9

0.8

0.5

1

0.9

0.8

0.5

1

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SSC JE Electrical 2019 with solution SET-1
If the field of the synchronous motor is under excited the power factor will be:

Zero

Leading

Unity

Lagging

Zero

Leading

Unity

Lagging

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SSC JE Electrical 2019 with solution SET-1
Which of the following is the correct relation regarding coupled coils?

M ≤ (L1L2)0.5

M > (L1L2)0.5

M = (L1 − L2)/2

M = (L1 + L2)/2

M ≤ (L1L2)0.5

M > (L1L2)0.5

M = (L1 − L2)/2

M = (L1 + L2)/2

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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 motor

DC short shunt compound generator

DC shunt motor

DC long shunt compound generator

DC short shunt compound motor

DC short shunt compound generator

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 What would the total loss of the 2kVA transformer corresponding to maximum efficiency be, provided the transformer has the iron of 150 W and full-load copper loss of 250W?

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

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 If the field of the synchronous motor is under excited the power factor will be:

SSC JE Electrical 2019 with solution SET-1 Which of the following is the correct relation regarding coupled coils?

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

SSC JE Electrical 2019 with solution SET-1
What would the total loss of the 2kVA transformer corresponding to maximum efficiency be, provided the transformer has the iron of 150 W and full-load copper loss of 250W?

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

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
If the field of the synchronous motor is under excited the power factor will be:

SSC JE Electrical 2019 with solution SET-1
Which of the following is the correct relation regarding coupled coils?

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