|
Voltage equation for D.C. motor is ___
|
|
0
|
145
|
September 24, 2021
|
|
During rheostatic braking the braking torque is ___
|
|
0
|
704
|
September 24, 2021
|
|
The condition for maximum efficiency for a ___
|
|
0
|
132
|
September 24, 2021
|
|
Torque developed by a D.C. motor depends upon ___
|
|
0
|
139
|
September 24, 2021
|
|
The hysteresis loss in a D.C. generator varies with the frequency of ___
|
|
0
|
138
|
September 24, 2021
|
|
The main disadvantage of the Ward- Leonard control method is ___
|
|
0
|
148
|
September 24, 2021
|
|
Which of the following motors is usually used in house-hold refrigerators?
|
|
0
|
169
|
September 24, 2021
|
|
Which motor has the poorest speed control?
|
|
0
|
150
|
September 24, 2021
|
|
In a differentially compounded D.C. motor, if ___
|
|
0
|
122
|
September 24, 2021
|
|
For which of the following applications a D.C. motor is preferred over an A.C. motor?
|
|
0
|
137
|
September 24, 2021
|
|
Sparking at the commutator of a D.C. motor may result in ___
|
|
0
|
187
|
September 24, 2021
|
|
The current drawn by the armature of D.C. motor is directly proportional to ___
|
|
0
|
199
|
September 24, 2021
|
|
In case the conditions for maximum power for a D.C. motor are ___
|
|
0
|
145
|
September 24, 2021
|
|
In case of D.C. shunt motors the speed is dependent on ___
|
|
0
|
152
|
September 24, 2021
|
|
The type of D.C. motor used for shears and punches is ___
|
|
0
|
194
|
September 22, 2021
|
|
Which D.C. motor will be preferred for constant speed line shafting?
|
|
0
|
289
|
September 22, 2021
|
|
In case of a shunt motor if the supply voltage is increased by 10%, which of the following will decrease?
|
|
0
|
215
|
September 22, 2021
|
|
The function of a field regulator for compound motors is ___
|
|
0
|
150
|
September 22, 2021
|
|
If conditions for maximum power for a D.C. motor are established, the efficiency of ___
|
|
0
|
143
|
September 22, 2021
|
|
If the no-voltage release of a D.C. motor starter fails to work on resumption of ___
|
|
0
|
181
|
September 22, 2021
|
|
A series motor is' best suited for ___
|
|
0
|
176
|
September 22, 2021
|
|
The rated speed of a given D.C. shunt motor is ___
|
|
0
|
145
|
September 22, 2021
|
|
One D.C. motor drives another ___
|
|
0
|
184
|
September 22, 2021
|
|
Which D.C. motor has got maximum self relieving property?
|
|
0
|
265
|
September 22, 2021
|
|
For which types of D.C. motor, dynamic braking is generally used?
|
|
0
|
129
|
September 22, 2021
|
|
The total losses in a well designed D.C. generator of 10 kW will be ___
|
|
0
|
184
|
September 22, 2021
|
|
D.C. series machine has field consisting of ___
|
|
0
|
151
|
September 22, 2021
|
|
If Bmax is the maximum flux density, then ___
|
|
0
|
251
|
September 22, 2021
|
|
In Ward-Leonard control the lower limit of speed is ___
|
|
0
|
141
|
September 22, 2021
|
|
cWhich of the following motors have almost constant speed over their full load range?
|
|
0
|
173
|
September 22, 2021
|