EE2 75-106

Which of these types of motor is self starting?

• dc motor

• sinle phase induction motor

• 3 phase induction moto

• ac motor

the direction of rotation of the single phase motor can be reversed by

• reversing connections of both windings

• reversing connections og startingwindig

• using a revers switch

• revesing supply connection

one of the characteristics of a single phase motor is that it  

• is self starting

• is not self starting

• requires only one winding

• can rotate in one direction only

after the staring winding  of single phase induction motor is disconnected from supply it continues to run only on …….. Winding.

• Rotor

• compensating 

• field

• running 

the starting winding of a single phase motor is placed in the 

• Rotor

• Stator

• Armature

• field

the capacitor in a capacitor start induction runac motor in connected in series with winding 

• starting 

• running

• squirrel-cage 

• compensating

A permanent split single phase capacitor motor dose not have 

• centrifugal switch

• starting winding 

• squirrel-cage rotor

• high power factor

Those induction motors which employ squirrel cage rotors are called____

• Squirrel cage motor

• Induction motor

• none of the above

• Slip ring motor

Fleming's left hand rule may be applied to an electric generator to find out

• direction of rotor rotation

• polarity of induced emf

• direction of induced emf

• direction of magnetic field.

Regaring Skewing Of motor bars in a suirrel cage induction motor (SCIM) which statement is false 

• It Prevent Cogging

• It Increases Starting Torque

• It produce more uniform torque

• it reduces motor "hum" during its operaion