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Motor and Gear Reducer Supplier in Vietnam
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0
|
47
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September 13, 2023
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In D.C. motor which of the following can sustain the maximum temperature rise?
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0
|
121
|
September 24, 2021
|
|
These days D.C. motors are widely used in ___
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0
|
111
|
September 24, 2021
|
|
When two D.C. series motors are connected in ___
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0
|
133
|
September 24, 2021
|
|
According to Fleming's left hand rule, when the forefinger points in ___
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0
|
112
|
September 24, 2021
|
|
The direction of rotation of a D.C. series motor can be ___
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0
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130
|
September 24, 2021
|
|
Speed control by the variation of flux, in a ___
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0
|
131
|
September 24, 2021
|
|
The generated e.m.f. and the current are in the opposite direction in case of ___
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0
|
310
|
September 24, 2021
|
|
Which of the following methods is most effective in finding out the no load losses in a large D.C. shunt motor?
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0
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152
|
September 24, 2021
|
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A motor for punching machine is ___
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0
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99
|
September 24, 2021
|
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The mechanical power developed by a D.C. motor is ___
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0
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211
|
September 24, 2021
|
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In a D.C. motor constant torque is ___
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0
|
164
|
September 24, 2021
|
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In a motor, energy conversion would not have been possible but ___
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0
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119
|
September 24, 2021
|
|
In a D.C. motor if the back e.m.f. is ___
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0
|
122
|
September 24, 2021
|
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In the D.C. motor the iron losses occur in ___
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0
|
113
|
September 24, 2021
|
|
In variable speed motor ___
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0
|
108
|
September 24, 2021
|
|
In a D.C. generator, the iron losses mainly take place in ___
|
|
0
|
101
|
September 24, 2021
|
|
In a manual shunt motor starter ___
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|
0
|
112
|
September 24, 2021
|
|
The losses occurring in a D.C. generator are ___
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0
|
90
|
September 24, 2021
|
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Which motor should not be started on no-load?
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0
|
130
|
September 24, 2021
|
|
The armature voltage control of D.C. motor provides ___
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0
|
172
|
September 24, 2021
|
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The speed of a D.C. shunt motor can be ___
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0
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89
|
September 24, 2021
|
|
Buses, trains, trolleys, hoists, cranes require high starting torque and ___
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|
0
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128
|
September 24, 2021
|
|
If the supply voltage for a D.C. motor is increased, which of the following will decrease?
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0
|
133
|
September 24, 2021
|
|
In Ward Leonard method of speed control of a D.C. motor, change in ___
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|
0
|
130
|
September 24, 2021
|
|
The ratio of starting torque to fullload torque is ___
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|
0
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96
|
September 24, 2021
|
|
Which D.C. motor Will have least percentage increase of ___
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0
|
144
|
September 24, 2021
|
|
To get the speed of D.C. motor below the normal without wastage of ___
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0
|
110
|
September 24, 2021
|
|
Which D.C. motor is preferred for elevators?
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|
0
|
149
|
September 24, 2021
|
|
Speed ,control by varying the armature circuit resistance, in a ___
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|
0
|
163
|
September 24, 2021
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