Two single phase transformers A and B are operating in parallel having different impedance and identical x/r ratio. Impedance of A is Za and impedance of B is Zb, both sharing a load of Sl. Then the load shared by transformer A is?

Two single phase transformers A and B are operating in parallel having different impedance and identical x/r ratio. Impedance of A is Za and impedance of B is Zb, both sharing a load of Sl. Then the load shared by transformer B is?

A

Sl*(Zb/(Za+Z

B

) [ Sl*(Za/(Za+Z[)

C

Sl*(Zb*Za/(Za+Zb))

D

Sl*(Zb+Za/Zb))

Two single phase transformers A and B are operating in parallel having different impedance and identical x/r ratio. Also impedance of A is more than that of B, then A ___________

A

shares lesser kVA

B

share more kVA

C

equal kVA as of B

D

total kVA

Two single phase transformers A and B are operating in parallel having different impedance and identical x/r ratio. Also impedance of A is more than that of B, then?

A

Za/Zb = Sb/Sa 2 View Answer]

B

Za/Zb = Sa/Sb

C

Za/Zb = 1

D

Za/Zb = (Sb/Sa)2

Two single phase transformers A and B are operating in parallel having different impedance and identical x/r ratio. Then?

A

A has poorer pf than B

B

B has poorer pf than B

C

lesser power factor angle

D

both operate at same power factor

The profit – sharing ratio of two partners is 2 : 3 if another partner is added with 40% of the profit – sharing ratio and the profit – sharing ratio of the initial two partners remains the same. Find the new profit – sharing ratio.

A

5 : 7 : 9

B

6 : 7 : 9

C

6 : 8 : 9

D

6 : 9 : 10

Seven people A, B, C, D, E, F and G live on separate floors of a 7-floor building. Ground floor is numbered 1, first floor is numbered. 2 and so on until the topmost floor is numbered 7. Each one of these having a different cars-Cadillac, Ambassador, Fiat, Maruti, Mercedes, Bedford and Fargo but not necessarily in the same order. Only three people live above the floor on which A lives. Only one person lives between A and the one having a car Cadillac. F lives immediately below the one having a car Bedford. The one having a car Bedford lives on an even-numbered floor. Only three people live between the ones having a car Cadillac and Maruti. E lives immediately above C. E is not having a car Maruti. Only two people live between B and the one having a car Fargo. The one having a car Fargo lives below the floor on which B lives. The one having a car Fiat does not live immediately above D or immediately below B. D does not live immediately above or immediately below A. G does not have a car Ambassador. Question : How many people live between the floors on which D and the one having a car Bedford ?

A

One

B

Two

C

Three

D

Four

Two single phase transformers A and B are operating in parallel having same impedance. But the x/r ratio of them are not equal and xa > xb. Then?

A

A has poorer pf than B

B

B has poorer pf than B

C

lesser power factor angle

D

both operate at same power factor

Two single phase transformers A and B are operating in parallel having same impedance. But the x/r ratio of them are not equal. Then total kVA output of the output will be ___________

A

less than sum of kVA of A and B

B

more than sum of kVA of A and B

C

equal to sum of kVA of A and B

D

any of the mentioned

Two alternators A and B having 5% speed regulation are working in parallel at a station. Alternator A is rated at 15 MW while B is at 20 MW. When the total load to be shared is 12 MW, then how much of the load will be shared by the alternator B?

A

6.85 MW

B

5.14 MW

C

6 MW

D

7 MW

There are two classes of three figures each. Class 'A' figures differ in certain way from figures in Class 'B'. Which two of the four Answer Figures belong to Class 'A'?

A

1 and 3

B

1 and 2

C

2 and 4

D

2 and 3