Which DC motor has maximum self loading property?

differentially compound DC motor
Which DC motor has got maximum self-loading property? Explanation: A differentially compound DC motor, flux reduces so sharply at small increase in load at higher values of load.

Which motor has highest no load speed?

DC series motor
Explanation: At no load, armature current tends to zero, flux φ tends to zero, where speed is inversely proportional to the flux, speed will tend to infinity. Thus, no load speed of DC series motor is highest.

Which motor is used to starts heavy loads?

The starting torque of the DC series motor is proportional to the square of the armature current. The armature current-Torque characteristics of the DC series motor is as given below. That is why DC series motor is capable to produce high starting torque, and it is preferred for driving heavy loads.

Which property is associated with DC motor?

Explanation: DC series motor provides very high starting torque, and at higher torques speed of the DC series motor is also maintained to constant. Both of these properties are used in applications of DC series motor.

Which of the DC motor uses flywheel?

DC shunt motor
So flywheels may be used with DC shunt motor during heavy loads. Hence from the given options, DC shunt motor is the best suitable option as DC series & Ac series motors have raising characteristics.

What is the efficiency of DC motor at maximum power?

Explanation: For getting maximum power, derivative of power with respect to current is equal to 0. This is practically impossible to achieve as, current required is much more than its normal rated value. Large heat will be produced in a machine and efficiency of motor will be less than 50 \%.

Which motor is used in lifts?

Lifts are preferred by AC slip ring or DC compound motor. In case of single phase installation, the commutator motors are preferred. Variable Frequency drive electronic controls are used in the latest lift designs.

Which DC motor has maximum self relieving property Mcq?

Which DC motor has got maximum self-relieving property? Explanation: DC series motor develops large starting torque initially and slow down with increase in load and so get automatically relived from heavy excessive load. Thus, DC series motor is called as self-reliving machine.

Which motor has poorest speed regulation?

The speed regulation of a DC motor is defined as the change in speed from no load to full load. It is expressed as a fraction or a percentage of the full load speed. No load speed of a DC series motor is very high. So, it has poorest speed regulation.