Electrical Machines Direct-on-line (DOL) starters are not suitable for starting large DC motors, because the starting torque becomes low. the motor may run away. the motor may not start. the starting current will be enormously high. the starting torque becomes low. the motor may run away. the motor may not start. the starting current will be enormously high. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider a separately excited DC motor. If the field current is increased while the armature terminal voltage is held constant, then speed of the motor will none of these. remains same. Decrease.d increase. none of these. remains same. Decrease.d increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Counter emf of a DC motor aids applied voltage. exceeds supply voltage regulates its armature voltage. helps in energy conversion. aids applied voltage. exceeds supply voltage regulates its armature voltage. helps in energy conversion. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Centrifugal switch is absent in which of the single phase induction motor? PSC (permanent split capacitor) motor. Shaded pole motor. None of these Split phase motor. PSC (permanent split capacitor) motor. Shaded pole motor. None of these Split phase motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is suitable for frequent starting and stoppings? Capacitor start capacitor run motor Resistance split phase motor Capacitor start motor All of these Capacitor start capacitor run motor Resistance split phase motor Capacitor start motor All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 2 pole lap winding dc machine , the resistance of one conductor is 2Ω and total number of conductors is 100. Find the total resistance 50Ω 10Ω 200Ω 100Ω 50Ω 10Ω 200Ω 100Ω ANSWER DOWNLOAD EXAMIANS APP
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