Dc Machines Applications Dc Machines Online Exam Quiz
Dc Machines Applications Dc Machines GK Quiz. Question and Answers related to Dc Machines Applications Dc Machines. MCQ (Multiple Choice Questions with answers about Dc Machines Applications Dc Machines
Which motor is preferred in highly explosive atmosphere?
Options
A : Air motor
B : Shunt motor
C : Series motor
D : Battery operated motor
Which of the following load application normally needs starting torque more than the rated torque?
Options
A : Blowers
B : Conveyors
C : Air compressors
D : Centrifugal pumps
Maximum torque in a DC machine is limited by ______________
Options
A : Commutation
B : Heating
C : Losses other than heating
D : Stability
When an electric train is moving down a hill, the DC motor will operate as ____________
Options
A : DC series motor
B : DC series generator
C : DC shunt motor
D : DC shunt generator
Which of the following motor can replace DC series motor?
Options
A : DC shunt motor
B : Cumulative compound motor
C : Wound-rotor induction motor
D : Synchronous motor
Which of the following motors can be used to drive the rotary compressor?
Options
A : DC shunt motor
B : DC series motor
C : Universal motor
D : Synchronous motor
Which type motors are preferred for lathes?
Options
A : DC shunt motors
B : Squirrel Cage induction motor
C : Synchronous motor
D : DC Shunt Motors or Squirrel cage induction motor
DC shunt motor is still used instead of synchronous motor in _____________
Options
A : High speed applications
B : Low speed applications
C : Medium and high-speed applications
D : Everywhere
For which of the following operations a DC motor is preferred over an AC motor?
Options
A : Low speed operation
B : High speed operation
C : Variable speed operation
D : Fixed speed operation
Nowadays, DC motor is widely used only in ____________
Options
A : Pumping sets
B : Air compressors
C : Electric traction
D : Machine shops
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