MCQ ON APPLICATION OF DC MACHINE

Which type of DC motor is commonly used in applications requiring high starting torque, such as elevators and cranes?

• A) Series DC motor
  

• B) Shunt DC motor
  

• C) Compound DC motor
  

• D) Permanent magnet DC motor

A shunt DC motor is typically used in:

• A) Electric traction systems
  

• B) Fans and blowers
  

• C) Lifts and hoists
  

• D) Industrial machines requiring variable speed

A DC motor is operating at 90% efficiency. If the input power to the motor is 200 W, what is the output power?

• A) 180 W
  

• B) 200 W
  

• C) 220 W
  

• D) 90 W

Which type of DC motor is best suited for applications requiring both high starting torque and the ability to maintain a constant speed under varying load conditions?

• A) Shunt DC motor
  

• B) Series DC motor
  

• C) Compound DC motor
  

• D) Universal motor

Which of the following DC motors is typically used in portable devices like drills, where a compact and high-speed motor is required?

• A) Series DC motor
  

• B) Shunt DC motor
  

• C) Compound DC motor
  

• D) Permanent magnet DC motor

Which type of DC generator is commonly used for applications requiring a stable voltage output, such as in power plants?

• A) Series DC generator
  

• B) Shunt DC generator
  

• C) Compound DC generator
  

• D) Permanent magnet DC generator

The compound DC generator is most commonly used in:

• A) Battery charging applications
  

• B) High-voltage power transmission
  

• C) Small-scale portable generators
  

• D) Applications requiring both stable voltage and current regulation

Which type of DC motor is often used in applications like railway traction, where high starting torque and variable speed are required?

• A) Series DC motor
  

• B) Shunt DC motor
  

• C) Compound DC motor
  

• D) Permanent magnet DC motor

The shunt DC motor is best suited for:

• A) Applications requiring high starting torque
  

• B) Constant speed applications under varying loads
  

• C) Applications with a high fluctuation in speed
  

• D) Starting heavy machinery

Which of the following is a typical application of a DC generator in the power sector?

• A) Providing power to electric motors
  

• B) Charging lead-acid batteries
  

• C) Powering household appliances
  

• D) Supplying electricity to remote areas