Q. In Ward Leonard speed control method for lowering the speed of the motor ______________

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Q. Reducing the armature voltage will give us _______________

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Q. In Ward Leonard speed control method for increasing the speed of the motor ______________

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Q. Reducing the field current will give us _______________

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Q. Speed-power characteristic for Ward Leonard speed control method _________________

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Q. Efficiency of Ward Leonard method is ____________

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Q. Ward Leonard method is an ideal choice for motor which undergoes frequent starting, stopping, speed reversal.

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Q. Starting gear used in Ward Leonard method___________

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Q. To get the speed of DC motor below the normal speed without wastage of electrical energy we use __________________

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Q. Speed control by Ward Leonard method, can give uniform speed variation _______________

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Q. Ward Leonard control is basically a _____________

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Q. In Ward Leonard control of DC motor, the lower limit of speed is imposed by ____________

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Q. The disadvantage of the Ward Leonard control method is ___________

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Q. Which of the following is the best braking method?

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Q. DC motor is still widely used in tractions due to its excellent braking properties.

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Q. Which of the following is not the method of electrical braking?

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Q. Which of the following is the plugging method of braking?

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Q. Which of the following is correct formula for braking torque in plugging?

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Q. Electrical braking of any variety becomes less effective as ________________

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Q. Plugging is applied in a motor, if we don’t make the switch OFF what will happen?

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