|
In a power transformer the efficiency should be ___
|
|
0
|
96
|
November 10, 2021
|
|
Pick the correct statement from the following?
|
|
0
|
98
|
November 10, 2021
|
|
In an ideal transformer, on no-load, the primary voltage is ___
|
|
0
|
326
|
November 10, 2021
|
|
The voltage transformation ratio of a transformer is ___
|
|
0
|
143
|
November 10, 2021
|
|
The noise produced by a transformer is ___
|
|
0
|
123
|
November 10, 2021
|
|
The secondary of a current transformer is always short-circuited under ___
|
|
0
|
105
|
November 10, 2021
|
|
A transformer can have regulation closer to ___
|
|
0
|
103
|
November 10, 2021
|
|
Negative voltage regulation is indicative that the load is ___
|
|
0
|
108
|
November 10, 2021
|
|
Which of the following is the main advantage of an auto-transformer over a two winding transformer?
|
|
0
|
115
|
November 10, 2021
|
|
A transformer can have zero voltage regulation at ___
|
|
0
|
101
|
November 10, 2021
|
|
Delta/star transformer works satisfactorily when ___
|
|
0
|
124
|
November 10, 2021
|
|
The highest voltage for transmitting electrical power in ___
|
|
0
|
109
|
November 10, 2021
|
|
Greater the secondary leakage flux ___
|
|
0
|
242
|
November 9, 2021
|
|
The no load current in a transformer lags behind the applied voltage by ___
|
|
0
|
143
|
November 9, 2021
|
|
While conducting short-circuit test on a transformer the following ___
|
|
0
|
236
|
November 9, 2021
|
|
The path of a magnetic flux in a transformer should have ___
|
|
0
|
166
|
November 9, 2021
|
|
Which of the following 3-phase connections of transformer create ___
|
|
0
|
221
|
November 9, 2021
|
|
When 240 V D.C. supply is given to an ___
|
|
0
|
145
|
November 9, 2021
|
|
For given effective applied voltage of ___
|
|
0
|
161
|
November 9, 2021
|
|
The type of load for which the voltage regulation of a transformer is ___
|
|
0
|
99
|
November 9, 2021
|
|
Leakage fluxes of a transformer may be ___
|
|
0
|
138
|
November 9, 2021
|
|
Which of the following parts of a transformer is likely to suffer maximum damage due to ___
|
|
0
|
128
|
November 9, 2021
|
|
The principle of working of a transformer is ___
|
|
0
|
185
|
November 9, 2021
|
|
In high frequency transformer ferrite cores are used because ___
|
|
0
|
137
|
November 9, 2021
|
|
A current transformer is ___
|
|
0
|
110
|
November 9, 2021
|
|
As the supply frequency of a transformer increases its ___
|
|
0
|
110
|
November 9, 2021
|
|
Oil impregnated paper condenser bushing is generally used on ___
|
|
0
|
165
|
November 9, 2021
|
|
Helical coils are very well suited for ___
|
|
0
|
154
|
November 9, 2021
|
|
A transformer is used to change the value of ___
|
|
0
|
145
|
November 9, 2021
|
|
In a transformer, electric power is transferred from one coil to ___
|
|
0
|
243
|
November 9, 2021
|