|
Permeance is the reciprocal of ___
|
|
0
|
155
|
September 19, 2021
|
|
Satisfactory commutation of D.C. machines requires ___
|
|
0
|
141
|
September 19, 2021
|
|
For a D.C. machines laboratory following type of D.C. supply will be ___
|
|
0
|
166
|
September 19, 2021
|
|
In a lap wound D.C. generator having p as number of poles and Z as ___
|
|
0
|
273
|
September 19, 2021
|
|
The material for commutator brushes is ___
|
|
0
|
178
|
September 19, 2021
|
|
A separately excited generator as compared to a ___
|
|
0
|
134
|
September 19, 2021
|
|
According to Fleming's right-hand rule for finding the direction of ___
|
|
0
|
115
|
September 19, 2021
|
|
Which of the following could be lamina-proximately the thickness of lamina-tions of a D.C. machine?
|
|
0
|
219
|
September 19, 2021
|
|
Which generator cannot start if there is no residual magnetism?
|
|
0
|
514
|
September 19, 2021
|
|
The ___ generator has poorest voltage regulation
|
|
0
|
317
|
September 19, 2021
|
|
For both lap and wave windings, there are as many commutator bars as ___
|
|
0
|
223
|
September 19, 2021
|
|
Two D.C. shunt generators, each with armature resistance of ___
|
|
0
|
302
|
September 19, 2021
|
|
When two D.C. series generators are running in parallel, an equilizer bar is ___
|
|
0
|
135
|
September 19, 2021
|
|
In a D.C. generator ___
|
|
0
|
125
|
September 19, 2021
|
|
In case of a ___
|
|
0
|
128
|
September 19, 2021
|
|
The following constitute short-circuit in ___
|
|
0
|
138
|
September 19, 2021
|
|
In a shunt generator the voltage build up is generally restricted by ___
|
|
0
|
153
|
September 19, 2021
|
|
In a D.C. generator the number of mechanical degrees and electrical degrees will ___
|
|
0
|
124
|
September 19, 2021
|
|
D.C. generator generates ___
|
|
0
|
472
|
September 19, 2021
|
|
Compensating windings are used in ___
|
|
0
|
134
|
September 19, 2021
|
|
In case of D.C. machine winding, number of commutator segments is ___
|
|
0
|
111
|
September 19, 2021
|
|
In D.C. generators, the brushes on commutator remain in ___
|
|
0
|
122
|
September 19, 2021
|
|
In case of a 4-pole D.C. generator provided with a ___
|
|
0
|
137
|
September 19, 2021
|
|
Copper brushes in D.C. machine are ___
|
|
0
|
128
|
September 19, 2021
|
|
In D.C. generators the pole shoes are fastened to ___
|
|
0
|
129
|
September 19, 2021
|
|
If the no load voltage of a certain generator is 210 V and ___
|
|
0
|
142
|
September 19, 2021
|
|
Which one of the following types of generators does not ___
|
|
0
|
124
|
September 19, 2021
|
|
The number of armature parallel paths in a ___
|
|
0
|
135
|
September 19, 2021
|
|
The open circuit voltage of a compound generator is ___
|
|
0
|
161
|
September 19, 2021
|
|
The critical resistance of the D.C. generator is ___
|
|
0
|
135
|
September 19, 2021
|