Ward - Leonard controlled DC drives are generally used for:

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Ward - Leonard controlled DC drives are generally used for:  Heavy duty excavators

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is an open loop control system. (a) Ward Leonard control (b) Field controlled D.C. motor (c) Stroboscope (d) Metadyne

Description : is an open loop control system. (a) Ward Leonard control (b) Field controlled D.C. motor (c) Stroboscope (d) Metadyne

Last Answer : Ans: B

The method of D.C. motor speed control shown in the illustration is known as _____________. EL-0101 A. Ward-Leonard B. Sperry-Rand C. Atlas-Copco D. Burmeister-Wain

Description : The method of D.C. motor speed control shown in the illustration is known as _____________. EL-0101 A. Ward-Leonard B. Sperry-Rand C. Atlas-Copco D. Burmeister-Wain

Last Answer : Answer: A

The basic type of D.C. motor speed control where a generator armature directly feeds the motor armature and the motor and generator fields are excited by a separate D.C. source is called ___________________. A. Burmeister-Wain B. Ward-Leonard C. Sperry-Rand D. Atlas-Copco

Description : The basic type of D.C. motor speed control where a generator armature directly feeds the motor armature and the motor and generator fields are excited by a separate D.C. source is called ___________________. A. Burmeister-Wain B. Ward-Leonard C. Sperry-Rand D. Atlas-Copco

Last Answer : Answer: B

The chief advantage of Ward-Leonard system D.C. motor speed control is that is

Description : The chief advantage of Ward-Leonard system D.C. motor speed control is that is  1. Can be used even for small motors 2. has high overall efficiency at all speeds 3. Gives smooth, sensitive and wide speed control 4. Uses a flywheel to reduce fluctuations in power demand

Last Answer : The chief advantage of Ward-Leonard system D.C. motor speed control is that is Gives smooth, sensitive and wide speed control 

The main disadvantage of the Ward-Leonard control method is?

Last Answer : The main disadvantage of the Ward-Leonard control method is high initial cost, high maintenance cost, low efficiency at light loads.

In Ward-Leonard control the lower limit of speed is imposed by?

Last Answer : In Ward-Leonard control the lower limit of speed is imposed by residual magnetism of the generator.

Ward-Leonard control is basically a?

Last Answer : Ward-Leonard control is basically a voltage control method.

Speed control by Ward Leonard method gives uniform speed variation?

Last Answer : Speed control by Ward Leonard method gives uniform speed variation in both directions.

Are ac drives better than dc drives?

Description : Are ac drives better than dc drives?

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A separately excited dc motor is required to be controlled, from a 3-phase supply, for its operation in the first...

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Last Answer : A

What is the order of the characteristic equation of an armature controlled DC motor?

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The hardware feature of LISP machines generally includes _____________ a) Large memory and high-speed processorb) Letter quality printers and eight-inch disk drives c) A mouse and specialized keyboard d) A mouse and specialized keyboard, Letter quality printers and eight-inch disk drives

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Last Answer : d) A mouse and specialized keyboard, Letter quality printers and eight-inch disk drives

The hardware features of LISP machines generally include __________ a) large memory and a high-speed processor b) letter-quality printers and 8-inch disk drives c) a mouse and a specialized keyboard d) large memory and a high-speed processor & a mouse and a specialized keyboard

Description : The hardware features of LISP machines generally include __________ a) large memory and a high-speed processor b) letter-quality printers and 8-inch disk drives c) a mouse and a specialized keyboard d) large memory and a high-speed processor & a mouse and a specialized keyboard

Last Answer : d) large memory and a high-speed processor & a mouse and a specialized keyboard

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Cute little Italian restaurant near WAMU center in Seattle (where Leonard Cohen is playing) for dinner.

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Description : What is the Best route to fort Leonard wood from Lexington KY?

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Description : Who was Leonard de Venci?

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Fort Leonard Wood, MO?

Description : Fort Leonard Wood, MO?

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Insulin drug was discovered by------? A. Charles Herbert Best B. Prof John James Rickard Macleod C. Sir Frederick Grant Banting (Answer) D. Leonard Thompson

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DC current can be controlled by which component?

Description : DC current can be controlled by which component?

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Chopper controlled DC motor

Description : Chopper controlled DC motor

Last Answer : Chopper controlled DC motor

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A man strolls into a hospital emergency room where there is a long line up to the reception desk. He walks right to the front and clamly asks to see the consultant in charge. No one gets angry and the receptionist immediately phones. The consultant has never met this man, yet she hurries away from the ward to see him.Why? -Riddles

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Last Answer : The man is a florist delievering a bouquet of flowers for the consultant.