Discuss
menu
search
person
Login
Register
search
edit
Ask a Question
Discuss
All Activity
Q&A
Questions
Hot!
Unanswered
Tags
Users
Ask a Question
What is a servo motor and how does it work?
Speak Question
asked
Mar 10, 2018
by
anonymous
What is a servo motor and how does it work?
servo
motor
work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
80
views
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
Speak Answer
answered
Mar 12, 2018
by
James
It is a simple electrical motor that is operated by AC or DC signal in order to provide a precise angular motion for a given electrical signal.
thumb_up_alt
0
like
thumb_down_alt
0
dislike
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Mar 17, 2018
by
anonymous
How does a single phase induction motor work?
How does a single phase induction motor work?
Last answer:
As we know that single phase induction is not self started because for self started we require atleast two revolving field but single phase induction motor has only one. So we provide extra ... 1phase IM classified as split phase IM, capacitor start capacitor run, capacitor start induction run.
single
phase
induction
motor
work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
92
views
1
answer
asked
Mar 15, 2018
by
anonymous
How does a PSC motor work?
How does a PSC motor work?
psc
motor
work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
297
views
0
answers
asked
Aug 17, 2019
by
anonymous
State working principle and applications of servo motor.
State working principle and applications of servo motor.
Last answer:
Working Principle of Servo Motor: Basically servo motor is made up of DC motor, which is controlled by a potentiometer and some gears. Its angle of rotation is controlled by the duration of ... Packaging 6) Woodworking 7) Textiles 8) Printing 9) Robotics 10) Portable drilling 11)Process control
servo
motor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
49
views
1
answer
asked
Apr 28, 2018
by
anonymous
Ratio of the rotor reactance X to the rotor resistance R for a two-phase servo motor
Ratio of the rotor reactance X to the rotor resistance R for a two-phase servo motor (A) is equal to that of a normal induction motor (B) is less than that of a normal induction motor (C) is greater than that of a normal induction motor (D) may be less or greater than that of a normal induction motor
Last answer:
C
ratio
rotor
reactance
resistance
two-phase
servo
motor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
343
views
2
answers
asked
Mar 11, 2018
by
anonymous
What is a transducer and how does it work?
What is a transducer and how does it work?
Last answer:
An electronic device that converts one form of energy to another form.for example a transducer is used in microphone to convert speech signals to electrical signal.on the other hand,transducer is used to convert an electrical signal to speech signals in speakers.
transducer
work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
84
views
1
answer
asked
Mar 10, 2018
by
anonymous
What is the job of a servo in a transmission?
What is the job of a servo in a transmission?
Last answer:
servo motor use in many types mechanism so its verius type of transmission wich type you need to know
servo
transmission
thumb_up_alt
0
like
thumb_down_alt
0
dislike
69
views
1
answer
asked
May 7, 2020
by
anonymous
State the modification to be done in dc series motor to work satisfactorily as ac series motor. State applications of ac series motor.
State the modification to be done in dc series motor to work satisfactorily as ac series motor. State applications of ac series motor.
Last answer:
Modifications are necessary in a dc series motor so that it operates satisfactorily on ac supply. The modifications are as follows: 1) AC series motor is built with a few field turns as ... and grinders 5) High speed vacuum cleaners 6) Sewing machines 7) Food processors 8) Drilling machine
state
the
modification
to
be
done
in
dc
series
motor
work
satisfactorily
as
ac
applications
of
thumb_up_alt
0
like
thumb_down_alt
0
dislike
82
views
1
answer
asked
Mar 15, 2018
by
anonymous
How does the Arduino work?
How does the Arduino work?
arduino
work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
57
views
0
answers
asked
Mar 11, 2018
by
anonymous
How does electric locomotive work?
How does electric locomotive work?
Last answer:
Electric locomotives are powered by motors connected to battery or any supply . The electric supply is connected to a motor which drives set of gears connected to wheels.
electric
locomotive
work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
162
views
1
answer
asked
Mar 10, 2018
by
anonymous
How does signal processing work?
How does signal processing work?
signal
processing
work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
63
views
0
answers
asked
Mar 10, 2018
by
anonymous
How does an operational amplifier work?
How does an operational amplifier work?
operational
amplifier
work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
56
views
0
answers
asked
Apr 26, 2018
by
anonymous
Which of the following motors is being extensively used in servo applications ?
Which of the following motors is being extensively used in servo applications ? A. AC motor B. Field controlled dc motor C. Armature controlled dc motor D. None of these
Last answer:
Which of the following motors is being extensively used in servo applications ? A. AC motor B. Field controlled dc motor C. Armature controlled dc motor D. None of these
motors
servo
applications
thumb_up_alt
0
like
thumb_down_alt
0
dislike
147
views
1
answer
asked
Mar 14, 2018
by
anonymous
Why does a transformer only work with an AC supply?
Why does a transformer only work with an AC supply?
Last answer:
The transformer work depends on the induction as main principle ,for that AC is the right means
transformer
only
work
ac
supply
thumb_up_alt
0
like
thumb_down_alt
0
dislike
109
views
3
answers
asked
Sep 22, 2018
by
anonymous
Explain energy conservation method in lighting system by using installation of separate transformer / servo stabilizer.
Explain energy conservation method in lighting system by using installation of separate transformer / servo stabilizer.
Last answer:
Energy conservation techniques by installation of separate transformer / servo stabilizer: The luminous efficiency of lamps depends upon the voltage applied across the terminals. It gives its best ... the voltage constant in that installation for giving best luminous efficiency of lamps.
energy
conservation
method
installation
separate
transformer
servo
stabilizer
thumb_up_alt
0
like
thumb_down_alt
0
dislike
95
views
1
answer
asked
Sep 2, 2019
by
anonymous
Why using megger ? how to work megger.
Why using megger ? how to work megger?
Last answer:
Megger is all about safety. You need to use cables that can meet your demand without putting anyone at risk through earth leakages. So Megger is all about testing cable insulation. You use an insulation tester resistant meter to make sure your cables are standard and properly insulated.
megger
work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
41
views
1
answer
asked
Mar 11, 2018
by
anonymous
How do induction heaters work?
How do induction heaters work?
induction
heaters
work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
31
views
0
answers
asked
Mar 19, 2018
by
anonymous
What is the work of MOSFET?
What is the work of MOSFET?
work
mosfet
thumb_up_alt
0
like
thumb_down_alt
0
dislike
62
views
0
answers
asked
Sep 20, 2017
by
anonymous
What is the unit of work?
Last answer:
Unit of work is Joule denoted by capital J .
unit
work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
56
views
1
answer
asked
Jan 2
by
anonymous
Draw a neat sketch and explain the accessory used to support long work.
Draw a neat sketch and explain the accessory used to support long work.
Last answer:
Accessory to support long work: A steady rest is a tool for a lathe, enabling a machinist to make deep cuts in long, slender stock, bore out thin pieces of metal, and generally keeps thin stuff straight. ... tool that follows the cutter, a steady rest is firmly attached to the bed of a lathe.
accessory
used
support
long
work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
18
views
1
answer
asked
Mar 22, 2018
by
anonymous
The unit of work or energy in S.I. units is
The unit of work or energy in S.I. units is
Last answer:
The unit of work or energy in S.I. units is joule.
unit
work
energy
si
units
thumb_up_alt
0
like
thumb_down_alt
0
dislike
52
views
1
answer
asked
Dec 16, 2017
by
anonymous
How does an electric motor works?
How does an electric motor works?
Last answer:
In the electric motor there are two types of part 1)moving and 2)stationary In stationary part containing field winding whis use to provide uniform maganetic field it at inner side of yoke In moving ... on it and this force is from all direction we can say it is torque.and motor armature rotates
electric
motor
works
thumb_up_alt
3
like
thumb_down_alt
0
dislike
100
views
1
answer
asked
Mar 20, 2018
by
anonymous
If the centrifugal switch does not open at 70 to 80 percent of synchronous speed of motor, it would result in?
Last answer:
If the centrifugal switch does not open at 70 to 80 percent of synchronous speed of motor, it would result in damage to the starting winding.
synchronous
speed
motor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
69
views
1
answer
asked
Jan 12
by
anonymous
A and B together can complete a work in 24 days. A alone can complete it in 40 days. If B does the work only for half a day daily, then in how many days A and B together will complete the work? a) 24 days b) 15 days c) 21 days d) 19 days
A and B together can complete a work in 24 days. A alone can complete it in 40 days. If B does the work only for half a day daily, then in how many days A and B together will complete the work? a) 24 days b) 15 days c) 21 days d) 19 days
Last answer:
A B’s 1 day’s work = (1/24 -1/40) =(5-3)/120 =2/120=>1/60 Now, (A + B)’s 1 day’s work = (1/40 +1/60) =(3+2)/120 =5/120 So, A and B together will complete the work in 120/5 = 24 days.
time-and-work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
6
views
1
answer
asked
Mar 18, 2018
by
anonymous
The synchronous motor which works on leading power factor and does not drive any mechanical load is called?
The synchronous motor which works on leading power factor and does not drive any mechanical load is called?
Last answer:
The synchronous motor which works on leading power factor and does not drive any mechanical load is called synchronous condenser.
synchronous
motor
leading
power
factor
drive
mechanical
load
thumb_up_alt
0
like
thumb_down_alt
0
dislike
69
views
1
answer
asked
Jan 12
by
anonymous
Madhesh does half work as much as vinith in three eighth of the time. If together they take a day to complete the work, how much time shall vinith take to do it? a) 21 b) 22 c) 23 d) 24
Madhesh does half work as much as vinith in three eighth of the time. If together they take a day to complete the work, how much time shall vinith take to do it? a) 21 b) 22 c) 23 d) 24
Last answer:
A Suppose vinith takes x days to do the work Madhesh takes (2*3/8 x) = 6/8x i.e., 3/4x days to do it (madhesh + vinith’s) 1 day work = 1/9 Therefore 1/x +4/3x = 1/9 (3+4) / 3x = 1/9 7/3x = 1/9 3x = 9*7 X = 63/ 3 =21 Vinith takes 21 days to do the work.
time-and-work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
6
views
1
answer
asked
Jul 5, 2019
by
anonymous
Why does the speed of a DC shunt motor decrease as the load increases?
Why does the speed of a DC shunt motor decrease as the load increases?
Last answer:
Because if the load is increasing then the torque must also be increase. If not then the speed of motor will decrease.
why
does
the
speed
of
a
dc
shunt
motor
decrease
as
load
increases
thumb_up_alt
0
like
thumb_down_alt
0
dislike
2.6k
views
1
answer
asked
Jan 12
by
anonymous
A motor bike tyre has two punctures. The 1st puncture alone would have made the tyre flat in 27 minutes and the 2nd alone would have done it in 18 minutes. If air leaks out at a constant rate, how long does it take both the punctures together to make it flat? a) 20 4/3 minutes b) 15 4/7 minutes c) 10 4/5 minutes d) 25 4/3 minutes
A motor bike tyre has two punctures. The 1st puncture alone would have made the tyre flat in 27 minutes and the 2nd alone would have done it in 18 minutes. If air leaks out at a constant rate, how long does it take both the punctures together to make it flat? a) 20 4/3 minutes b) 15 4/7 minutes c) 10 4/5 minutes d) 25 4/3 minutes
Last answer:
C 1st puncture made the tyre flat in 27 mins 2nd puncture made the tyre flat in 18 mins 1 minute’s work of both the punctures = (1/27 + 1/18) =(2+3)/54 =5/54 So, both the punctures will make the tyre flat in 54/5 mins =>10 4/5 minutes
time-and-work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
4
views
1
answer
asked
Mar 17, 2018
by
anonymous
How is a three phase cage induction motor self starting?
How is a three phase cage induction motor self starting?
Last answer:
Any type of induction motor is self starting. Because the reason for torqe production require two flux displaced by some angle theta.If theta is constant with time then torqe will be constant;if ... torqe also pulsating. In induction motor this angle theta is not pulsating.so it is self starting
three
phase
cage
induction
motor
self
starting
thumb_up_alt
0
like
thumb_down_alt
0
dislike
96
views
1
answer
asked
Mar 15, 2018
by
anonymous
Why does induction motor have high starting current?
Why does induction motor have high starting current?
Last answer:
In induction motor , the flux produce is quadrature to the applied voltage. Since when we are going to start motor , there is no flux present inside . So in order to lets say compensate it ... times of current to further increase flux. So that is reason for high starting current in induction motor
induction
motor
high
starting
current
thumb_up_alt
0
like
thumb_down_alt
0
dislike
115
views
2
answers
asked
Mar 3, 2018
by
anonymous
In synchronous motor, does the winding losses vary with load?
In synchronous motor, does the winding losses vary with load?
Last answer:
No, in the synchronous motor the winding losses do not vary with load.
synchronous
motor
winding
losses
vary
load
thumb_up_alt
0
like
thumb_down_alt
0
dislike
492
views
1
answer
asked
Apr 29, 2018
by
anonymous
In a DC motor, it is important to place the brushes along ______
In a DC motor, it is important to place the brushes along ______ A) Magnetic Neutral Axis B) Normal Geometric Axis C) Nominal Geometric Axis D) None of these
Last answer:
In a DC motor, it is important to place the brushes along Magnetic Neutral Axis
dc
motor
brushes
thumb_up_alt
0
like
thumb_down_alt
0
dislike
65
views
1
answer
asked
Mar 20, 2018
by
anonymous
At the instant of starting when a D.C. motor is put on supply, it behaves like?
Last answer:
At the instant of starting when a D.C. motor is put on supply, it behaves like a low resistance circuit.
dc
motor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
65
views
1
answer
asked
Mar 20, 2018
by
anonymous
By looking at which part of the motor, it can be easily confirmed that a particular motor is D.C. motor?
Last answer:
By looking at Commutator part of the motor, it can be easily confirmed that a particular motor is D.C. motor.
motor
dc
thumb_up_alt
0
like
thumb_down_alt
0
dislike
80
views
1
answer
asked
Mar 20, 2018
by
anonymous
If a D.C. motor is connected across the A.C. supply it will?
Last answer:
If a D.C. motor is connected across the A.C. supply it will burn due to heat produced in the field winding by eddy currents.
dc
motor
connected
ac
thumb_up_alt
0
like
thumb_down_alt
0
dislike
75
views
1
answer
asked
Mar 20, 2018
by
anonymous
After the starting winding of a single phase induction motor is disconnected from supply, it continues to run only on?
Last answer:
Reason is kinetic energy
single
phase
induction
motor
disconnected
supply
thumb_up_alt
0
like
thumb_down_alt
0
dislike
132
views
2
answers
asked
Mar 20, 2018
by
anonymous
If a D.C. series motor is operated on A.C. supply, it will?
Last answer:
If a D.C. series motor is operated on A.C. supply, it will spark excessively, have poor efficiency, have poor power factor.
dc
series
motor
operated
ac
supply
thumb_up_alt
0
like
thumb_down_alt
0
dislike
64
views
1
answer
asked
Mar 20, 2018
by
anonymous
In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will?
Last answer:
In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will run as induction motor.
reluctance
motor
synchronous
speed
thumb_up_alt
0
like
thumb_down_alt
0
dislike
87
views
1
answer
asked
Mar 20, 2018
by
anonymous
To reverse the direction of rotation of a capacitor start motor while it is running we should?
Last answer:
To reverse the direction of rotation of a capacitor start motor while it is running we should disconnect motor from the supply till it stops then reconnect it to supply with reversed connection of main or auxiliary winding.
rotation
capacitor
start
motor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
80
views
1
answer
asked
Mar 20, 2018
by
anonymous
If starting winding of a single-phase induction motor is left in the circuit, it will?
Last answer:
If starting winding of a single-phase induction motor is left in the circuit, it will draw excessive current and overheat.
starting
winding
single-phase
induction
motor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
186
views
1
answer
asked
Mar 15, 2018
by
anonymous
How do you measure the speed of a motor?
How do you measure the speed of a motor?
measure
speed
motor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
37
views
0
answers
asked
Apr 29, 2018
by
anonymous
What is the slip (as a percentage) when a 6 pole single phase induction motor operating on 220 V and 60 Hz is
What is the slip (as a percentage) when a 6 pole single phase induction motor operating on 220 V and 60 Hz is rotating at speed of 1140 rpm? A) 60% B) 5% C) 10% D) None of these
Last answer:
What is the slip (as a percentage) when a 6 pole single phase induction motor operating on 220 V and 60 Hz is rotating at speed of 1140 rpm? A) 60% B) 5% C) 10% D) None of these
single
phase
induction
motor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
79
views
1
answer
asked
Jan 12
by
anonymous
6 male , 8 female and 12 children can complete a work in 14 days .a female does twice the work of a male does and a child does half the work a male does . how many female alone can complete this work in 14 days? a) 15 b) 10 c) 12 d) 14
6 male , 8 female and 12 children can complete a work in 14 days .a female does twice the work of a male does and a child does half the work a male does . how many female alone can complete this work in 14 days? a) 15 b) 10 c) 12 d) 14
Last answer:
D Let 1 female ‘s 1 day work= x Then 1 male’s 1 day work =x/2 And 1 child’s 1 day work =x/4 So 6x/2 + 8x +12x/4 =1/14 3x+8x+3x = 1/14 14x = 1/14 X=196 1 female alone can complete the work in 196 days So, to complete the work in 14 days number of female required = 14.
time-and-work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
6
views
1
answer
asked
Jan 11
by
anonymous
Two cogged wheels of which one has 32 cogs and other 54 cogs, work into each other. If the latter turns 80 times in three quarters of a minute, how often does the other turn in 8 seconds? A) 48 B) 24 C) 38 D) 39 E) None of these
Two cogged wheels of which one has 32 cogs and other 54 cogs, work into each other. If the latter turns 80 times in three quarters of a minute, how often does the other turn in 8 seconds? A) 48 B) 24 C) 38 D) 39 E) None of these
Last answer:
Answer: B Number of turns required= 80 × 54/32 × 8/45 = 24 24 times
ratio-and-proportion
thumb_up_alt
0
like
thumb_down_alt
0
dislike
13
views
1
answer
asked
Jul 8, 2018
by
Rathod vijay R.
How many induction motor types
And application.
Last answer:
AC and DC motar
motor
thumb_up_alt
1
like
thumb_down_alt
0
dislike
122
views
2
answers
asked
Mar 18, 2018
by
anonymous
How can we reverse the direction of rotation of synchronous motor?
How can we reverse the direction of rotation of synchronous motor?
Last answer:
By reversing supply phase sequence we can reverse the direction of rotation of synchronous motor.
reverse
direction
rotation
synchronous
motor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
195
views
1
answer
asked
Mar 18, 2018
by
anonymous
Three phase synchronous motor will have how many sliprings?
Three phase synchronous motor will have how many sliprings?
Last answer:
Three phase synchronous motor will have two sliprings.
three
phase
synchronous
motor
slipring
thumb_up_alt
0
like
thumb_down_alt
0
dislike
72
views
1
answer
asked
Mar 15, 2018
by
anonymous
How can we improve power factor using synchronous motor?
How can we improve power factor using synchronous motor?
improve
power
factor
synchronous
motor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
60
views
0
answers
asked
Oct 4, 2017
by
anonymous
how can we reverse the direction of rotation of three phase induction motor?
how can we reverse the direction of rotation of three phase induction motor ?
Last answer:
The direction of rotation of three phase induction motor can be reversed by plugging i.e by changing any two out of three phases of the supply to the stator of the Induction motor terminal.
three
phase
induction
motor
rotation
thumb_up_alt
1
like
thumb_down_alt
0
dislike
101
views
1
answer
asked
Aug 28, 2019
by
anonymous
What is the difference between Generator and Motor?
What is the difference between Generator and Motor?
Last answer:
If a rotating machine delivers a power as output it is called generator. If power required to rotate a machine it is called motor.
generator
motor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
98
views
3
answers
asked
Aug 6, 2017
by
anonymous
what is the difference between synchronous and asynchronous motor?
what is the difference between synchronous and asynchronous motor?
Last answer:
Asynchronous motors and syncrouns motor are called as dc machines. and also syncrouns motor called as induction motor. Asynonymous motor as are rotates with constant speed we not able to operate . ... It is able to operate. These are a small difference between syncrouns and asynchronous motors.
synchronous
asynchronous
motor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
237
views
2
answers
Install Now
...