|
In an arc welding in order to obtain steady arc one should ___
|
|
0
|
968
|
August 2, 2021
|
|
Flashing of field of dc generator means ___
|
|
0
|
124
|
August 2, 2021
|
|
In a rotating electrical machine the torque produced will be ___
|
|
0
|
836
|
August 2, 2021
|
|
In a separately excited dc generator the field is connected to ___
|
|
0
|
296
|
August 2, 2021
|
|
The speed of dc shunt motor can be increased above its ___
|
|
0
|
161
|
August 2, 2021
|
|
When the torque of dc series motor is tripled, the ___
|
|
0
|
717
|
August 2, 2021
|
|
The dc motor that draws almost same power at different loads is:
|
|
0
|
209
|
August 2, 2021
|
|
The dc motor, that has poorest speed regulation is ___
|
|
0
|
143
|
August 2, 2021
|
|
The starting torque of dc shunt motor is ___
|
|
0
|
144
|
August 2, 2021
|
|
In a dc motor, the shaft torque is less than ___
|
|
0
|
147
|
August 2, 2021
|
|
In an electrical motor, the electromagnetic torque developed is ___
|
|
0
|
294
|
August 2, 2021
|
|
A DC shunt motor is running at light load, what happens if the field winding gets opened?
|
|
0
|
284
|
August 2, 2021
|
|
The direction of rotation of a dc compound motor can be reversed by ___
|
|
0
|
186
|
August 2, 2021
|
|
A dc motor having full load speed of 75 rpm and speed regulation of ___
|
|
0
|
300
|
August 2, 2021
|
|
The efficiency of a dc motor when developing maximum power will be ___
|
|
0
|
203
|
August 2, 2021
|
|
The horse power obtained from the motor shaft is ___
|
|
0
|
300
|
August 2, 2021
|
|
Torque development in a dc motor depends on ___
|
|
0
|
155
|
August 2, 2021
|
|
The flux leakage coefficient in dc machine is ___
|
|
0
|
160
|
August 2, 2021
|
|
A flywheel is employed with a dc compound motor to reduce the peak demand, the ___
|
|
0
|
150
|
August 2, 2021
|
|
A separately excited dc generator is ___
|
|
0
|
251
|
August 2, 2021
|
|
When the direction of power flow in a differential compounded motor ___
|
|
0
|
130
|
August 2, 2021
|
|
Which of the following dc motor has maximum ___
|
|
0
|
140
|
August 2, 2021
|
|
A DC series motor is used for overhauling load ___
|
|
0
|
337
|
August 2, 2021
|
|
A DC series motor is best suited for electrical ___
|
|
0
|
123
|
August 2, 2021
|
|
A DC shunt motor is driving a constant torque load ___
|
|
0
|
162
|
August 2, 2021
|
|
A thick wire is used in dc series motor field winding than that in ___
|
|
0
|
131
|
August 2, 2021
|
|
The direction of rotation of a dc motor can be ___
|
|
0
|
116
|
August 2, 2021
|
|
When a dc machine is connected to the dc supply main it ___
|
|
0
|
122
|
August 2, 2021
|
|
The direction of the armature current in a ___
|
|
0
|
206
|
August 2, 2021
|
|
If the back emf in a dc motor varnishes suddenly, then ___
|
|
0
|
161
|
August 2, 2021
|