A universal motor can run on?

State working principle of universal motor with the help of diagram.
Last Answer : Working Principle of Universal motor : It is modified DC series motor which can work on AC as well as DC supply. According to basic motor principle, whenever a current carrying conductor is placed in magnetic ... They have nearly same operating characteristic for both AC and DC supply.

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asked Aug 17, 2019 by anonymous

applications of each: i) Universal motor ii) Stepper motor.

applications of each: i) Universal motor ii) Stepper motor.
Last Answer : i) Applications of Universal motor: 1) portable drills 2) hair dryers 3) grinders 4) mixers 5) table-fans 6) blowers 7) polishers 8) Kitchen appliances ii) Applications of Stepper motor ... 7) robotics 8) CNC machine 9) Control systems 10) Biomedical applications 10) XY recorder 11) plotters

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asked Aug 17, 2019 by anonymous

State two applications of 1) Shaded pole motor 2) Universal motor

State two applications of 1) Shaded pole motor 2) Universal motor
Last Answer : (i)Applications of Shaded pole motor: 1. Small fans 2. Toy motors 3. Hair dryers 4. Ventilators 5. Electric clocks 6. Record players 7. Motorized valves 8. Gramophones 9. Photocopying ... 5. Portable Drilling Machines 6. Electric Shavers 7. Mechanical computing Machines 8. Machine Tools etc.

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asked Jul 26, 2019 by anonymous

Draw and explain working of universal motor. Give two applications of universal motor.

Draw and explain working of universal motor. Give two applications of universal motor.
Last Answer : Figure of Universal motor: Operation of universal motor on A.C. and D.C. supply: *A universal motor works on either DC or single phase AC supply. When the universal motor is ... , regardless of AC or DC supply, universal motor works on the same principle that DC series motor works.

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asked Jul 20, 2019 by anonymous

The speed of a universal motor is usually reduced by using?

Last Answer : The speed of a universal motor is usually reduced by using gearing.

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asked Mar 20, 2018 by anonymous

Speed control of a universal motor is achieved by?

Last Answer : Speed control of a universal motor is achieved by varying field flux with tapped field windings, connecting rheostat in series, applying variable voltage by means of silicon controlled rectifier, applying variable voltage by means of variable auto-transformer.

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asked Mar 20, 2018 by anonymous

A universal motor is one which?

Last Answer : A universal motor is one which can be operated either on D.C. or A.C. supply at approximately the same speed and output.

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asked Mar 20, 2018 by anonymous

In a universal motor, the most common cause of brush sparking is?

Last Answer : In a universal motor, the most common cause of brush sparking is open armature winding, shorted armature winding, shorted field winding, high commutator mica.

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asked Mar 20, 2018 by anonymous

The speed/load characteristics of a universal motor is same as that of?

Last Answer : The speed/load characteristics of a universal motor is same as that of D.C. series motor.

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asked Mar 20, 2018 by anonymous

The speed control of universal motor used for sewing machines is by?

Last Answer : The speed control of universal motor used for sewing machines is by varying the resistance.

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asked Mar 20, 2018 by anonymous

The direction of rotation of universal motor can be reversed the by reversing the flow of current through?

Last Answer : The direction of rotation of universal motor can be reversed the by reversing the flow of current through either armature winding or field winding.

255 views 1 answer

asked Mar 20, 2018 by anonymous

In a ceiling fan employing capacitor run motor?

Last Answer : In a ceiling fan employing capacitor run motor secondary winding surrounds the primary winding.

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asked Mar 20, 2018 by anonymous

In a capacitor start and run motors the function of the running capacitor in series with the auxiliary winding is to?

Last Answer : In a capacitor start and run motors the function of the running capacitor in series with the auxiliary winding is to improve power factor.

712 views 1 answer

asked Mar 20, 2018 by anonymous

What human gestures are universal?

What human gestures are universal?
Last Answer : The bird. That speaks in every language. Thumbs up also seems pretty universal.

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asked Feb 28 by anonymous

What is a Universal Blood Donor and a Universal Blood Recipient?

What is a Universal Blood Donor and a Universal Blood Recipient?
Last Answer : A universal blood donor is a person who is eligible to donate blood to any person in the world, except for a few set of people. The universal blood donor must have O- (O negative) blood group in ... type, even O-. So, the donor as well as recipient must be careful while involving in this process.

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asked Jun 24, 2021 by itszee

A universal RLC bridge uses?

A universal RLC bridge uses?
Last Answer : A universal RLC bridge uses Maxwell Wein bridge for measurement of inductance and modified De Santy's bridge for measurement of capacitance.

312 views 1 answer

asked Mar 21, 2018 by anonymous

How to Run a Business Meeting

How to Run a Business Meeting
Last Answer : How to Run a Business Meeting Some people in business believe that too much time spent on a meeting can lower productivity. Meetings, however, are necessary to keep everyone in the group updated on what ... in reading this article, you'll surely be eager to learn how to schedule a business meeting.

7 views 1 answer

asked May 10, 2021 by anonymous

How to Run Faster ?

How to Run Faster ?
Last Answer : How to Run Faster Running speed is a combination of everything from weight, leg turnover (how fast your legs move), cardio conditioning and muscle. The following are 8 ways you can learn to run faster: ... course - run safely. Watch traffic. Do not overtrain. If injured, seek help (EG Shin splints)

7 views 1 answer

asked May 6, 2021 by anonymous

Instant 100 meters (How fast to run 100 meters?)

Instant 100 meters (How fast to run 100 meters?)
Last Answer : Instant 100 meters (How fast to run 100 meters?) This guide outlines the step-by-step preparation for the most efficient 100-meter run. 0-15 meters With your head down, you need to ... length. Constant training and the right technique will allow you to improve your 100 meter running results.

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asked Mar 27, 2021 by anonymous

A rotory converter can also be run as a?

Last Answer : A rotory converter can also be run as a synchronous motor.

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asked Mar 20, 2018 by anonymous

Which type of heater is cheapest to run?

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asked Mar 11, 2018 by anonymous

The number of poles in a phase induction motor at 50 Hz and running at 1500 rpm will be?

The number of poles in a phase induction motor at 50 Hz and running at 1500 rpm will be?
Last Answer : The number of poles in a phase induction motor at 50 Hz and running at 1500 rpm will be 4.

143 views 1 answer

asked Mar 26, 2018 by anonymous

When a D.C. series motor is connected to A.C. supply, the power factor will be low because of?

Last Answer : When a D.C. series motor is connected to A.C. supply, the power factor will be low because of high inductance of field and armature circuits.

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asked Mar 20, 2018 by anonymous

The wattage of motor for driving domestic sewing machine will be around?

Last Answer : The wattage of motor for driving domestic sewing machine will be around 100 to 150 W.

103 views 1 answer

asked Mar 20, 2018 by anonymous

The wattage rating for a ceiling fan motor will be in the range?

Last Answer : The wattage rating for a ceiling fan motor will be in the range 50 to 150 W .

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asked Mar 20, 2018 by anonymous

In case of a shaded pole motor the direction of rotation of the motor is?

Last Answer : In case of a shaded pole motor the direction of rotation of the motor is from main pole to shaded pole.

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asked Mar 20, 2018 by anonymous

In A.C. series motor compensating winding is employed to?

Last Answer : In A.C. series motor compensating winding is employed to reduce sparking at the brushes.

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asked Mar 20, 2018 by anonymous

In a two value capacitor motor, the capacitor used for running purposes is?

Last Answer : In a two value capacitor motor, the capacitor used for running purposes is paper spaced oil filled type.

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asked Mar 20, 2018 by anonymous

In split-phase motor auxiliary winding is of?

Last Answer : In split-phase motor auxiliary winding is of thin wire placed at the top of the slots.

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asked Mar 20, 2018 by anonymous

Single phase induction motor usually operates on?

Last Answer : Single phase induction motor usually operates on 0.6 power factor lagging.

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asked Mar 20, 2018 by anonymous

A single-phase induction motor is?

Last Answer : A single-phase induction motor is inherently non-self-starting with low torque.

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asked Mar 20, 2018 by anonymous

The motor used on small lathes is usually?

Last Answer : The motor used on small lathes is usually single-phase capacitor run motor.

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asked Mar 20, 2018 by anonymous

A hysteresis motor works on the principle of?

Last Answer : A hysteresis motor works on the principle of hysteresis loss.

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asked Mar 20, 2018 by anonymous

A shaded pole motor can be used for?

Last Answer : A shaded pole motor can be used for toys, hair dryers, circulators etc.

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asked Mar 20, 2018 by anonymous

The power factor of a single-phase induction motor is usually?

Last Answer : The power factor of a single-phase induction motor is usually lagging.

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asked Mar 20, 2018 by anonymous

In a capacitor start single-phase motor, when capacitor is replaced by a resistance?

Last Answer : In a capacitor start single-phase motor, when capacitor is replaced by a resistance motor will continue to run in same direction.

223 views 1 answer

asked Mar 20, 2018 by anonymous

Direction of rotation of a split phase motor can be reversed by reversing the connection of?

Last Answer : Direction of rotation of a split phase motor can be reversed by reversing the connection of either running winding or starting winding.

358 views 1 answer

asked Mar 20, 2018 by anonymous

The direction of rotation of an hysteresis motor is determined by?

Last Answer : The direction of rotation of an hysteresis motor is determined by position of shaded pole with respect to main pole.

230 views 1 answer

asked Mar 20, 2018 by anonymous

A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by...

A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will?
Last Answer : A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will not start at all.

232 views 1 answer

asked Mar 20, 2018 by anonymous

The running winding of a single phase motor on testing with meggar is found to be ground...

The running winding of a single phase motor on testing with meggar is found to be ground. Most probable location of the ground will be?
Last Answer : The running winding of a single phase motor on testing with meggar is found to be ground. Most probable location of the ground will be at the slot edge where coil enters or comes out of the slot.

116 views 1 answer

asked Mar 20, 2018 by anonymous

In a single phase motor the centrifugal switch?

Last Answer : In a single phase motor the centrifugal switch disconnects auxiliary winding of the motor.

269 views 1 answer

asked Mar 20, 2018 by anonymous

In repulsion motor direction of rotation of motor?

Last Answer : In repulsion motor direction of rotation of motor is the same as that of brush shift.

116 views 1 answer

asked Mar 20, 2018 by anonymous

The value of starting capacitor of a fractional horse power motor will be?

Last Answer : The value of starting capacitor of a fractional horse power motor will be 300 uF .

98 views 1 answer

asked Mar 20, 2018 by anonymous

A centrifugal switch is used to disconnect starting winding when motor has?

Last Answer : A centrifugal switch is used to disconnect starting winding when motor has picked up about 50 to 70 per cent of rated speed.

879 views 1 answer

asked Mar 20, 2018 by anonymous

In a shaded pole single-phase motor, the revolving field is produced by the use of?

Last Answer : In a shaded pole single-phase motor, the revolving field is produced by the use of shading coils.

205 views 1 answer

asked Mar 20, 2018 by anonymous

In a shaded pole motor, the shading coil usually consist of?

Last Answer : In a shaded pole motor, the shading coil usually consist of a single turn of heavy copper wire which is short-circuited and carries only induced current.

130 views 1 answer

asked Mar 20, 2018 by anonymous

The rotor developed by a single-phase motor at starting is?

Last Answer : The rotor developed by a single-phase motor at starting is zero.

90 views 1 answer

asked Mar 20, 2018 by anonymous

anonymous · Answer 1 · 2018-03-20T19:12:21+0000

Answer :

A universal motor can run on either A.C. or D.C.

answered Mar 20, 2018 by anonymous

A universal motor can run on?

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