Related Questions

If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens
A This will make armature to take heavy current, possibly burning it
B This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses
C Nothing will happen to motor
D Motor will come to stop
If a D.C. shunt motor is working at no load and if shunt field circuit suddenly opens
A Nothing will happen to the motor
B This will make armature to take heavy current, possibly burning it
C This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses
D Motor will run at very slow speed
In the analysis of which of the following lines shunt capacitance is neglected?
A Short transmission lines
B Medium transmission lines
C Long transmission lines
D Medium as well as long transmission lines
Shunt capacitance is neglected while considering
A short transmission line
B medium transmission line
C long transmission line
D medium and long transmission lines
পাত-দূরত্ব d এবং ধারকত্ব C. এমন একটি সমান্তরাল পাত ধারকের পাত দুটির মাঝখানে d/2 পুরুত্ববিশিষ্ট একটি ধাতব পাত স্থাপন করা হলো। নতুন ধারকত্ব কত হবে? (A metal plate of thickness d/2 is inserted between the plates of a parallel plate capacitor with plate separation d and capacitance C. What is the new capacitance?)
A C/d
B C/2
C 4Cd
D 2c
The capacitance of a capacitor is not affected by
A distance between plates
B area of plates
C thickness of plates
D all of the above
For which of the following parameter variation, the capacitance of the capacitor remains unaffected ?
A Distance between plates
B Area of the plates
C Nature of dielectric
D Thickness of the plates
The speed of a DC shunt motor is required to be more than full load speed . This is possible by-
A reducing the field current
B decreasing the armature current
C increasing the armature current
D None of the above
সান্ট (shunt) নিচের কোন যন্ত্রের সাথে ব্যবহৃত হয়?
A ভোল্ট মিটারের সাথে সমান্তরাল
B ভোল্ট মিটারের সাথে অনুক্রমে
C অ্যামিটারের সাথে সমান্তরালে
D গ্যালভানো মিটারের সাথে সমান্তরালে
Examples of left to right shunt
A Artrial septal defect
B Patent ductus arteriosus
C Coarctation of the aorta
D Tetralogy of Fallot
E Ventricular septal defect rarely

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