Control System Interview Freshers Online Exam Quiz
Control System Interview Freshers GK Quiz. Question and Answers related to Control System Interview Freshers. MCQ (Multiple Choice Questions with answers about Control System Interview Freshers
DC motors are constructed using Permanent Magnet resulting in:
Options
A : Higher torque/inertia ratio
B : Higher operating frequency
C : No filed losses
D : All of the mentioned
Speed of a permanent magnet DC motor:
Options
A : It is directly proportional to the armature voltage at a given load torque
B : The speed torque characteristics are more flat than in a wound field motor
C : It depends upon armature voltage and are more flat than in a wound field motor
D : None of the mentioned
Different type of construction in permanent type DC magnet are :
Options
A : Slotted armature type
B : Surface wound armature type
C : Surface wound rotating armature, stationary wound type.
D : All of the mentioned
PMDC device is commonly employed for:
Options
A : Speed feedback in speed control system
B : Internal velocity feedback loop of a position control system
C : This device is used in both speed feedback and internal velocity feedback control
D : None of the mentioned
PMDC when coupled to a rotating shaft would generate a voltage proportional to speed and thus would serve as____________
Options
A : Tachometer
B : Servomotor
C : D.C. motor
D : A.C. motor
A much lower inertia in Surface wound armature type is obtained by placing the winding on a non-magnetic cylinder which rotates in annular space between permanent magnet stator and stationary rotor.
Options
A : True
B : False
C :
D :
Commutation process of a DC motor can be accomplished by solid devices (transistors and SCR’s).
Options
A : True
B : False
C :
D :
Lower inertia is obtained due to much larger gap and hence stronger magnets are used for this purpose.
Options
A : True
B : False
C :
D :
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