Induction Of the motor Crawling What ?

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1 Answer

Answer :

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Related questions

Crawling in an Induction motor is caused by

Description : Crawling in an Induction motor is caused by (A) Low voltage supply (B) High loads (C) Harmonics developed in the motor (D) Improper design of the machine

Last Answer : Low voltage

Generally, Crawling in squirrel cage induction motors is tendency to run stably at speeds as low as

Description : Generally, Crawling in squirrel cage induction motors is tendency to run stably at speeds as low as (A) One-third of their synchronous speed (B) One-fifth of their synchronous speed (C) One-seventh of their synchronous speed (D) One-ninth of their synchronous speed

Last Answer : Generally, Crawling in squirrel cage induction motors is tendency to run stably at speeds as low as One-seventh of their synchronous speed

What would you do if you discovered a half naked woman crawling around on your spare bedroom floor, ripping at the carpet, and obviously high on something?

Description : What would you do if you discovered a half naked woman crawling around on your spare bedroom floor, ripping at the carpet, and obviously high on something?

Last Answer : I would say, “Mom!?!?”

Nature of reality... Are we any closer to discovering it now than when we were nothing more than microbiological mud skippers crawling out of the cesspool of life at the dawn of time?

Description : Nature of reality... Are we any closer to discovering it now than when we were nothing more than microbiological mud skippers crawling out of the cesspool of life at the dawn of time?

Last Answer : I’m sorry. I do not understand “it” as asked.

Have pain in my left ear and feels like something is crawling in my ear?

Description : Have pain in my left ear and feels like something is crawling in my ear?

Last Answer : Have you had anyone look in your ear? How long has it been feeling this way? Obviously you should have it looked at.

Is it an urban myth about spiders/insects crawling into someone's ears?

Description : Is it an urban myth about spiders/insects crawling into someone's ears?

Last Answer : answer:Yes, it can. Certain tropical insects will lay their larvae in body orifices and I think, while rare, that Earwigs have been known to go into peoples ear canals. Flies will lay their ... animals genital area and the maggots burrowing into the flesh around the genitals. Not a pretty sight.

If someone asks a question about ants, do you imagine them crawling on your hands and legs?

Description : If someone asks a question about ants, do you imagine them crawling on your hands and legs?

Last Answer : Now it does. Thanks a lot.

I am concerned that my house may be infested with beetles that my crawling baby is finding and eating.

Description : I am concerned that my house may be infested with beetles that my crawling baby is finding and eating.

Last Answer : You’re most likely dealing with water bugs. click here for a guide to get rid of these pests. Good luck.

what are the tiny black bugs crawling on my plumeria plant? only visible at night.

Description : what are the tiny black bugs crawling on my plumeria plant? only visible at night.

Last Answer : Need Answer

Our marigolds are crawling with a brown bug (lightning bug shape)but has solid brown wings and striped abdomen.

Description : Our marigolds are crawling with a brown bug (lightning bug shape)but has solid brown wings and striped abdomen.

Last Answer : Need Answer

The dog is constantly crawling into bed.

Description : How to teach him?

Last Answer : Well - not let him, right ??? (headbang) Are you raising a dog or a dog you ??? (fubar) Unequivocally expel the dog from the bed (do not be afraid, he ´understands´) and insist on this expulsion.

What is the difference between Web Crawling and Web Scraping?

Description : What is the difference between Web Crawling and Web Scraping?

Last Answer : Web Scraping, to use a minimal definition, is the process of processing a web document and extracting information out of it. Web Crawling, to use a minimal definition, is the process of iteratively finding and ... do web crawling, you have to do some degree of web scraping (to extract the URL's.)

What is the answer to this question Tanya is training a turtle for a turtle race. For every of an hour that the turtle is crawling he can travel of a mile. At what unit rate is the turtle crawling?

Description : What is the answer to this question Tanya is training a turtle for a turtle race. For every of an hour that the turtle is crawling he can travel of a mile. At what unit rate is the turtle crawling?

Last Answer : ?

What is crawling ?

Description : What is crawling ?

Last Answer : The tendency of squirrel cage Induction motor to run at 1/7 times of its synchronous speed is called crawling.

What you mean by CRAWLING and COGING?

Description : What you mean by CRAWLING and COGING? 

Last Answer : Crawling The motor fails to rotate at rated speed or motor rotates at … or 20% speed is called motor crawling. This may be due to system imbalance or more pulsating torque. Coging Motor fail to start atoll is called motor coging. 

Dynamic content presented in Google _______ crawling isn’t normally indexed. a) AJAX b) Java c) Javascript d) All of the mentioned

Description : Dynamic content presented in Google _______ crawling isn’t normally indexed. a) AJAX b) Java c) Javascript d) All of the mentioned

Last Answer : AJAX

Dynamic content presented in Google _______ crawling isn’t normally indexed. a) AJAX b) Java c) Javascript d) All of the mentioned

Description : Dynamic content presented in Google _______ crawling isn’t normally indexed. a) AJAX b) Java c) Javascript d) All of the mentioned

Last Answer : AJAX

Pick up the correct statement from the following: (A) Blistering may be cured by applying water paint finished with oil paint dried with a little copal varnish (B) Cracked paints may be cured by removing paint and giving a fresh coat of paint (C) Crawling paints may be cured by sand preparing the surface and giving a fresh coat with plenty of turps (D) All the above

Description : Pick up the correct statement from the following: (A) Blistering may be cured by applying water paint finished with oil paint dried with a little copal varnish (B) Cracked paints may be cured by ... sand preparing the surface and giving a fresh coat with plenty of turps (D) All the above

Last Answer : Answer: Option D

Small nations (e.g., the Ivory Coast) whose trade and financial relationships are mainly with a single partner tend to utilize: A. Pegged exchange rates B. Freely floating exchange rates C. Managed floating exchange rates D. Crawling pegged exchange rates

Description : Small nations (e.g., the Ivory Coast) whose trade and financial relationships are mainly with a single partner tend to utilize: A. Pegged exchange rates B. Freely floating exchange rates C. Managed floating exchange rates D. Crawling pegged exchange rates

Last Answer : a single partner tend to utilize:

In 1973, the reform of the international monetary system resulted in the change from: A. Adjustable pegged rates to managed floating rates B. Managed floating rates to adjustable pegged rates C. Crawling pegged rates to freely floating rates D. Freely floating rates to crawling pegged rates

Description : In 1973, the reform of the international monetary system resulted in the change from: A. Adjustable pegged rates to managed floating rates B. Managed floating rates to adjustable pegged rates C. Crawling pegged rates to freely floating rates D. Freely floating rates to crawling pegged rates

Last Answer : A. Adjustable pegged rates to managed floating rates

Which exchange-rate mechanism calls for frequent redefining of the par value by small amounts to remove a payments disequilibrium? A. Dual Exchange rates B. Adjustable Pegged Exchange Rates C. Managed Floating Exchange Rates D. Crawling Pegged Exchange Rate

Description : Which exchange-rate mechanism calls for frequent redefining of the par value by small amounts to remove a payments disequilibrium? A. Dual Exchange rates B. Adjustable Pegged Exchange Rates C. Managed Floating Exchange Rates D. Crawling Pegged Exchange Rate

Last Answer : D. Crawling Pegged Exchange Rate

Which exchange-rate mechanism is intended to insulate the balance of payments from short-term capital movements while providing exchange rate stability for commercial transactions? A. Dual Exchange Rates B. Managed Floating Exchange Rates C. Adjustable Pegged Exchange Rates D. Crawling Pegged Exchange Rates

Description : Which exchange-rate mechanism is intended to insulate the balance of payments from short-term capital movements while providing exchange rate stability for commercial transactions? A. Dual ... Floating Exchange Rates C. Adjustable Pegged Exchange Rates D. Crawling Pegged Exchange Rates

Last Answer : A. Dual Exchange Rates

A 3 phase 50 Hz induction motor has full load speed of 970 rpm. Calculate no of poles and slip frequency.

Description : A 3 phase 50 Hz induction motor has full load speed of 970 rpm. Calculate no of poles and slip frequency.

Last Answer : The number of poles in an induction motor can be calculated using the following formula: No. of poles = (120 * frequency) / speed In this case, the number of poles would be calculated as follows: No. of poles = ( ... ) - 50 Hz = 8.08 Hz So the motor has 6 poles and a slip frequency of 8.08 Hz.

Difference between single and three phase induction motor?

Description : Difference between single and three phase induction motor?

Last Answer : inverse-square relation to the distance between them. The electromagnetic force is very strong, second only in strength to the strong interaction, but unlike that force it operates over all distances. In ... . Experiment has shown charge to be a conserved quantity, that is, the net charge within

Difference between single induction motor and 3 phase induction motor?

Description : Difference between single induction motor and 3 phase induction motor?

Last Answer : Many of these disciplines overlap with other engineering branches, spanning a huge number of specializations including hardware engineering, power electronics, electromagnetics and waves, microwave engineering, ... (IET) (formerly the IEE). Electrical engineers work in a very wide range

Induction Motor Who Say ?

Last Answer : Induction Of policy On Foundation By A. Motor Turn around Says This one Induction Motor Says.

What are the advantages of open end winding induction motor over conventional induction motor?

Description : What are the advantages of open end winding induction motor over conventional induction motor?

Last Answer : Open ended induction motor - i assume you are talking aboutsplit phase induction motor. With these motors old style speedcontrolling method using external resistors can be used. Howeverthis is now obsolete.

What is the difference between induction motor and open ended winding induction motor?

Description : What is the difference between induction motor and open ended winding induction motor?

Last Answer : Standard induction motor has a closed squirrel cage rotor, whereas open ended induction motor has split phase rotor.

What will happen if induction motor is in star-star connected?

Description : What will happen if induction motor is in star-star connected?

Last Answer : Motor must be connected to its designed winding. Induction motordoes not have two windings. It is either star or deltaconnected.

Why speed of the induction motor falls when load is increased?

Description : Why speed of the induction motor falls when load is increased?

Last Answer : As the load increases, the speed reduces to deliver theincreased torque required.

Squirrel cage induction motor has a) Zero starting torque b) Very small starting torque c) Medium starting torque d) Very high starting torque

Description : Squirrel cage induction motor has a) Zero starting torque b) Very small starting torque c) Medium starting torque d) Very high starting torque

Last Answer : Ans: B

If the residual flux is absent in the rotor iron of the isolated induction generator, a) it will not run. b) it will run as induction motor c) it will burn the winding d) it will not affect the characteristic of the generator

Description : If the residual flux is absent in the rotor iron of the isolated induction generator, a) it will not run. b) it will run as induction motor c) it will burn the winding d) it will not affect the characteristic of the generator

Last Answer : Ans: A

A four pole, 60 Hz, three-phase synchronous motor comes up to 1760 RPM when started as an induction motor. What is the percent slip after the rotor field is energized? A. 0 B. 1.1 C. 2.2 D. 3.3

Description : A four pole, 60 Hz, three-phase synchronous motor comes up to 1760 RPM when started as an induction motor. What is the percent slip after the rotor field is energized? A. 0 B. 1.1 C. 2.2 D. 3.3

Last Answer : Answer: A

The torque and current curves for a three-phase induction motor with a cage rotor, are shown in the illustration. Which of the following statements is true concerning the depicted curves? EL-0056 A. As slip increases, rotor reactance decreases. B. The pullout point on the torque curve is about seven times the normal full load torque value. C. At stand still, stator current is 150% of normal. D. If the motor is loaded to the point where 40% slip has resulted, it will stall.

Description : The torque and current curves for a three-phase induction motor with a cage rotor, are shown in the illustration. Which of the following statements is true concerning the depicted curves? EL-0056 A. As slip ... D. If the motor is loaded to the point where 40% slip has resulted, it will stall.

Last Answer : Answer: D

Which statement is true concerning a split-phase induction motor? A. Motor rotation can be reversed without changing the windings or leads. B. Motor speed can be readily adjusted from zero to full speed. C. The motor will run as a generator with the proper wiring. D. Motor rotation can be reversed by reversing the leads on the starting winding.

Description : Which statement is true concerning a split-phase induction motor? A. Motor rotation can be reversed without changing the windings or leads. B. Motor speed can be readily adjusted from zero to full ... proper wiring. D. Motor rotation can be reversed by reversing the leads on the starting winding.

Last Answer : Answer: D

Which of the listed motors will operate at the highest RPM, assuming that each operates at the same frequency? A. A four-pole synchronous motor under normal load. B. A four-pole induction motor under no load. C. A six-pole synchronous motor under normal load. D. A six-pole induction motor under full load.

Description : Which of the listed motors will operate at the highest RPM, assuming that each operates at the same frequency? A. A four-pole synchronous motor under normal load. B. A four-pole induction motor under ... A six-pole synchronous motor under normal load. D. A six-pole induction motor under full load.

Last Answer : Answer: A

The speed of a squirrel-cage, multi-speed, induction motor, as used aboard ship, is varied by changing the __________. A. number of connected poles in the stator B. frequency to the motor C. excitation voltage D. resistance of the rotor circuit

Description : The speed of a squirrel-cage, multi-speed, induction motor, as used aboard ship, is varied by changing the __________. A. number of connected poles in the stator B. frequency to the motor C. excitation voltage D. resistance of the rotor circuit

Last Answer : Answer: A

A four-pole 60-hertz induction motor has a synchronous speed of 1800 RPM and a slip of 4 percent at full load. What will be its full load speed? A. 1728.0 RPM B. 1730.7 RPM C. 1800.0 RPM D. 1872.0 RPM

Description : A four-pole 60-hertz induction motor has a synchronous speed of 1800 RPM and a slip of 4 percent at full load. What will be its full load speed? A. 1728.0 RPM B. 1730.7 RPM C. 1800.0 RPM D. 1872.0 RPM

Last Answer : Answer: A

A single-phase induction motor starts, comes up to about 75% rated speed, slows down to a lower speed, and accelerates again. The problem is most likely in the ____________. A. starting winding B. running winding C. starting capacitor D. running centrifugal switch

Description : A single-phase induction motor starts, comes up to about 75% rated speed, slows down to a lower speed, and accelerates again. The problem is most likely in the ____________. A. starting winding B. running winding C. starting capacitor D. running centrifugal switch

Last Answer : Answer: B

If a single-phase induction motor fails to start, the problem may be _____________. A. an open in the main winding B. a shorted shunt field C. a closed centrifugal switch D. low circuit frequency

Description : If a single-phase induction motor fails to start, the problem may be _____________. A. an open in the main winding B. a shorted shunt field C. a closed centrifugal switch D. low circuit frequency

Last Answer : Answer: A

If the synchronous speed of a 12 pole, polyphase, induction motor operating at 60 Hz were 600 RPM, how many poles will be required in a similar motor operating at the same frequency but having a synchronous speed of 900 RPM? A. 4 B. 6 C. 8 D. 18

Description : If the synchronous speed of a 12 pole, polyphase, induction motor operating at 60 Hz were 600 RPM, how many poles will be required in a similar motor operating at the same frequency but having a synchronous speed of 900 RPM? A. 4 B. 6 C. 8 D. 18

Last Answer : Answer: C

A four-pole induction motor, operating on three-phase 60 cycle current will operate at approximately ___________. A. 850 RPM B. 1,150 RPM C. 1,750 RPM D. 3,550 RPM

Description : A four-pole induction motor, operating on three-phase 60 cycle current will operate at approximately ___________. A. 850 RPM B. 1,150 RPM C. 1,750 RPM D. 3,550 RPM

Last Answer : Answer: C

If a single-phase induction motor fails to start, the problem may be _____________. A. an open in the run winding B. a shorted shunt field C. a closed centrifugal switch D. low circuit frequency

Description : If a single-phase induction motor fails to start, the problem may be _____________. A. an open in the run winding B. a shorted shunt field C. a closed centrifugal switch D. low circuit frequency

Last Answer : Answer: A

What is the rotor speed of a four pole, 60 cycle, induction motor operating at full load with 3% slip? A. 270 RPM B. 540 RPM C. 873 RPM D. 1746 RPM

Description : What is the rotor speed of a four pole, 60 cycle, induction motor operating at full load with 3% slip? A. 270 RPM B. 540 RPM C. 873 RPM D. 1746 RPM

Last Answer : Answer: D

A single-phase induction motor will only start if you spin the rotor rapidly with the line switch closed. After starting, its speed fluctuates between very slow and half-speed. The problem probably lies in the ________. A. starting winding B. centrifugal mechanism C. centrifugal switch D. running winding

Description : A single-phase induction motor will only start if you spin the rotor rapidly with the line switch closed. After starting, its speed fluctuates between very slow and half-speed. The problem ... in the ________. A. starting winding B. centrifugal mechanism C. centrifugal switch D. running winding

Last Answer : Answer: D

The following air gap readings were obtained from a horizontally mounted, bilge pump, induction motor, equipped with sleeve bearings: FWD END-AFT END, Top .045 - .049, Right Side .045 - .047, Left Side .045 - .047, Bottom .045 - .041 Which of the f A. both the aft and foward bearings should be replaced. B. Shims should be removed from the aft bearing. C. The forward bearing should be lowered. D. The aft bearing should be lowered.

Description : The following air gap readings were obtained from a horizontally mounted, bilge pump, induction motor, equipped with sleeve bearings: FWD END-AFT END, Top .045 - .049, Right Side .045 - .047, Left ... the aft bearing. C. The forward bearing should be lowered. D. The aft bearing should be lowered.

Last Answer : Answer: A

If a three-phase induction motor is operated under a light load and it develops an open in one of its supply lines, the motor will _____________. A. continue to run, but will vibrate and have reduced torque B. speed up due to the reduced number of poles C. run cooler due to reduced current flow D. stop

Description : If a three-phase induction motor is operated under a light load and it develops an open in one of its supply lines, the motor will _____________. A. continue to run, but will vibrate and have reduced ... speed up due to the reduced number of poles C. run cooler due to reduced current flow D. stop

Last Answer : Answer: A

A split-phase induction squirrel-cage motor will not come up to speed, even though the rated voltage, rated frequency, and rated load are applied. The suspected trouble could be due to _____________. A. a faulty centrifugal switch B. broken rotor bars C. worn bearings D. all of the above

Description : A split-phase induction squirrel-cage motor will not come up to speed, even though the rated voltage, rated frequency, and rated load are applied. The suspected trouble could be due to _____________. A. a faulty centrifugal switch B. broken rotor bars C. worn bearings D. all of the above

Last Answer : Answer: D

A three-phase, squirrel cage, induction motor will run hot due to a/an ______________. A. improper brush position B. reversed commutating pole C. shorted stator D. high power factor

Description : A three-phase, squirrel cage, induction motor will run hot due to a/an ______________. A. improper brush position B. reversed commutating pole C. shorted stator D. high power factor

Last Answer : Answer: C