DC Motors Dc series motors are used in those applications where _____ is required. None of the listed here Constant speed Low no load speed High starting torque None of the listed here Constant speed Low no load speed High starting torque ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motors is most suitable for signalling devices and many kinds of timers ? C. series motor Induction motor C. shunt motor Reluctance motor C. series motor Induction motor C. shunt motor Reluctance motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors As there is no back e.m.f. at the instant of starting a D.C. motor, in order to prevent a heavy current from flowing though the armature circuit Armature is temporarily open circuited A resistance is connected in series with armature A resistance is connected parallel to the armature A high value resistor is connected across the field winding Armature is temporarily open circuited A resistance is connected in series with armature A resistance is connected parallel to the armature A high value resistor is connected across the field winding ANSWER DOWNLOAD EXAMIANS APP
DC Motors The value of back emf in dc motor is maximum at Half full load None of the listed here No load Full load Half full load None of the listed here No load Full load ANSWER DOWNLOAD EXAMIANS APP
DC Motors During rheostat braking of dc series motor Motor is run at reduced speed Motor is reversed in direction Motor is run as a generator None of the listed here Motor is run at reduced speed Motor is reversed in direction Motor is run as a generator None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The variable resistor shunting the field of a dc series motor is called a Potential divider Voltage regulator Armature divertor Field divertor Potential divider Voltage regulator Armature divertor Field divertor ANSWER DOWNLOAD EXAMIANS APP
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