Electrical Motors MCQ

What type of energy does an electric motor convert electric energy into?

What phenomenon does an electric motor use?

What is the magnet used for construction of electric motor?

What is an insulated copper wire wrapped on a rectangular frame of soft iron core known as?

Which among the following rules is applicable to study the direction of rotation of coil in magnetic field?

Do the magnetic fields produced by current and horse shoe magnet act in a similar way?

On which arms in an electric motor does the force act, and what is the required length of those arms with respect to the magnetic field of the magnet?

What is the magnitude of force acting on the arms of armature which are parallel to magnetic field?

What are the forces acting on the arms of armature of motor which are perpendicular to the direction of magnetic field?

What is the function of brushes connected to split rings of a motor?

What reverses the direction of current to maintain the rotation of the coil periodically?

Can electric motor be used in?

Which of the given motor has insufficient starting torque at full load speed with the same H.P. ratings?

The Primary reason for D.C. motor Preferred over A.C. motor

What causes crawling in an induction motor?

In which of the given single-phase motor, the rotor has no teeth or winding?

If field current is decreased in shunt dc motor, the speed of the motor

Will the flux density increase or decrease under trailing pole tips in DC motors?

Which motor cannot be started on no load?

Which of the following motors has negative speed regulation?

Diverters are used only in

Which of the following motor has negative speed regulation?

Induction motor operation depends on

Which of the following induction motor has the highest starting torque?

An electric motor with constant output power will have a torque speed characteristics in the form of a