|
A separately-excited DC generator, running at ___
|
|
0
|
179
|
June 27, 2023
|
|
A DC shunt generator builds up 230 V when driven in ___
|
|
0
|
227
|
June 27, 2023
|
|
A self-excited shunt generator fails to ___
|
|
0
|
185
|
June 27, 2023
|
|
In normal dc machines operating at ___
|
|
0
|
289
|
June 27, 2023
|
|
Consider the following statements regarding dc machines ___
|
|
0
|
183
|
June 27, 2023
|
|
The commutator segments of DC machines are made up of ___
|
|
0
|
269
|
June 27, 2023
|
|
The armature core of a DC machine is laminated to ___
|
|
0
|
174
|
June 27, 2023
|
|
A DC shunt generator builds up to a voltage of 220 V at ___
|
|
0
|
184
|
June 27, 2023
|
|
Consider the following statements regarding the magnetization characteristics of ___
|
|
0
|
199
|
June 27, 2023
|
|
The brush-axis of a bipolar dc motor is rotated by ___
|
|
0
|
342
|
June 27, 2023
|
|
In dc machines, the field-flux axis and armature-mmf axis are ___
|
|
0
|
282
|
June 27, 2023
|
|
In dc machines, the space waveform of ___
|
|
0
|
188
|
June 27, 2023
|
|
A commutator in DC machines can ___
|
|
0
|
159
|
June 27, 2023
|
|
In dc machines, the space distribution of air-gap flux density wave at ___
|
|
0
|
210
|
June 27, 2023
|
|
In dc machines, the field system has to be ___
|
|
0
|
204
|
June 27, 2023
|
|
In dc machines, the armature windings are placed on the ___
|
|
0
|
161
|
June 27, 2023
|
|
Which of the following voltage regulator is preferred for providing large values of ___
|
|
0
|
236
|
June 27, 2023
|
|
Fufuraldehyde analysis is done to determine the ___
|
|
0
|
156
|
June 27, 2023
|
|
Dissolve gas analysis of transformer oil is carried out to ___
|
|
0
|
174
|
June 27, 2023
|
|
What does the use the of height flux density value in transformer design lead to?
|
|
0
|
150
|
June 27, 2023
|
|
Maximum allowable moisture content of ___
|
|
0
|
157
|
June 27, 2023
|
|
Minimum allowable resistivity of power transformer insulating oil is ___
|
|
0
|
158
|
June 27, 2023
|
|
Maximum allowable tan - delta (tanδ) of dielectric dispassion factor of ___
|
|
0
|
227
|
June 27, 2023
|
|
Maximum allowable acidity level of power transformer insulating oil is ___
|
|
0
|
238
|
June 27, 2023
|
|
Which of the following is not a part of transformer?
|
|
0
|
211
|
June 27, 2023
|
|
The heat transfer by convection in a transformer least depends on ___
|
|
0
|
224
|
June 27, 2023
|
|
Which of the following machine will have maximum efficiency?
|
|
0
|
172
|
June 27, 2023
|
|
Normally for the design of transformer the ambient temperature is ___
|
|
0
|
203
|
June 27, 2023
|
|
Transformer cooling and insulating oil must be of ___
|
|
0
|
200
|
June 27, 2023
|
|
The heat generated in the transformer is dissipated mainly by ___
|
|
0
|
176
|
June 27, 2023
|