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The wattage rating for a ceiling fan motor will be in the range?
asked
Mar 20, 2018
by
anonymous
wattage
rating
ceiling
fan
motor
range
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1
Answer
answered
Mar 20, 2018
by
anonymous
The wattage rating for a ceiling fan motor will be in the range
50 to 150 W
.
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Related questions
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.
ceiling
fan
capacitor
run
motor
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85
views
1
answer
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.
wattage
motor
driving
domestic
sewing
machine
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76
views
1
answer
asked
Aug 18, 2019
by
anonymous
Why is a capacitor used in a ceiling fan ?
Why is a capacitor used in a ceiling fan ?
Last answer:
For splitting phase so that a rotating magnetic field will be produced & as per Lenz's law a torque will be created & rotor starts rotating. In single phase if capacitor is not used for split phase then a pulsating mag. field is produced which is unable to produce torque on rotor
capacitor
ceiling
fan
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203
views
3
answers
asked
Aug 13, 2019
by
Doyel
State the working principle of ceiling fan.
ceiling
fan
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60
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0
answers
asked
Sep 19, 2017
by
anonymous
Why we have to change the capacitor of ceiling fan after some months?
Last answer:
Capacitor use in fan is made up of dielectic material which is in semi solid material having high capacity.but generation of heat in capacitor the semi solid material converted into dry solid because of ... capacity becomes lower and lower so for good result of our fan we have to change it.
ceiling
fan
capacitor
change
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109
views
1
answer
asked
Sep 7, 2017
by
anonymous
how regulator of ceiling fan works?
Last answer:
It is simply variable resistance create opposition to flow of current and decrease or increase the speed of fan
regulator
ceiling
fan
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87
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1
answer
asked
Mar 20, 2018
by
anonymous
The efficiency of a properly designed synchronous motor will usually fall in range?
Last answer:
The efficiency of a properly designed synchronous motor will usually fall in range 85 to 95%.
efficiency
designed
synchronous
motor
usually
range
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55
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1
answer
asked
May 7, 2020
by
anonymous
State suitable single phase motor for following applications: (i) Table fan (ii) Mixers and Grinders
State suitable single phase motor for following applications: (i) Table fan (ii) Mixers and Grinders
Last answer:
Application Suitable Single Phase Motor Table Fan 1) Capacitor split phase motor 2) Capacitor start capacitor run motor Mixers and Grinders 1) Universal motor 2) A.C. Series motor
state
suitable
single
phase
motor
for
following
applications
i
table
fan
ii
mixers
and
grinders
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53
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1
answer
asked
Mar 20, 2018
by
anonymous
For the same H.P. rating and full load speed, following motor has poor starting torque?
Last answer:
For the same H.P. rating and full load speed, following motor has poor starting torque differentially compounded.
hp
rating
full
load
speed
motor
poor
starting
torque
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114
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1
answer
asked
Mar 25, 2018
by
anonymous
For testing appliances, the wattage of test lamp should be?
For testing appliances, the wattage of test lamp should be?
Last answer:
For testing appliances, the wattage of test lamp should be high.
testing
appliances
wattage
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48
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1
answer
asked
May 8, 2018
by
anonymous
The kVA rating of Three-phase transformer with Voltage = 200V and Current = 100A will be :
The kVA rating of Three-phase transformer with Voltage = 200V and Current = 100A will be : (A) 34.64 kVA (B) 75 kVA (C) 20 kVA (D) None of the above
Last answer:
The kVA rating of Three-phase transformer with Voltage = 200V and Current = 100A will be : 34.64 kVA
kva
rating
three-phase
transformer
voltage
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130
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1
answer
asked
Mar 20, 2018
by
anonymous
The range of efficiency for shaded pole motors is?
Last answer:
The range of efficiency for shaded pole motors is 5% to 35%.
range
efficiency
shaded
pole
motors
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79
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1
answer
asked
May 8, 2018
by
anonymous
The rating of transformer may be expressed in ____________.
The rating of transformer may be expressed in ____________. (A) kVAR (B) kW (C) kVA (D) Horse power
Last answer:
The rating of transformer may be expressed in kVA .
rating
transformer
expressed
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363
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1
answer
asked
Sep 18, 2018
by
anonymous
State function of i) Ceiling rose ii) Conduit
State function of i) Ceiling rose ii) Conduit
Last answer:
Function of Ceiling rose: Output connection for ceiling fan or tube. Function of Conduit – To run the wires from switch board to appliances.
state
function
ceiling
rose
conduit
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79
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1
answer
asked
Mar 26, 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.
induction
motor
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64
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1
answer
asked
Sep 22, 2018
by
anonymous
Explain any two energy conservation techniques in fan.
Explain any two energy conservation techniques in fan.
Last answer:
Following are energy conservation techniques in Fans : 1) Use the electronic regulators instead of conventional regulator: Function of regulator is to control the speed of the fan. The conventional regulators ... 't forget to properly maintain your electric fan and keep it in good working order.
energy
conservation
techniques
fan
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707
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1
answer
asked
Sep 20, 2018
by
anonymous
How rating of main switch and cable is selected for Industrial Installation.
How rating of main switch and cable is selected for Industrial Installation.
Last answer:
1. Rating of Main Switch or Fuse Rating is decided in industrial installation: Rating of main switch or fuse is based up the starting current of motor. For calculating starting current is considered 2 ... take 1.5 times the rated current or full load current. & thus cable rating is decided.
rating
main
switch
cable
industrial
installation
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1
answer
asked
Sep 6, 2018
by
anonymous
State the advantages of instrument transformer in using for extension of range of meters.
State the advantages of instrument transformer in using for extension of range of meters.
Last answer:
Advantages of instrument transformer: 1. Extension of instrument range is possible. 2. Isolation of instruments from high voltage side. 3. Power loss is less as compared to shunts and multipliers. 4 ... measurement. 5. It is economical method of range extension. 6. Increases in safety of operator.
advantages
instrument
transformer
extension
range
meters
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41
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1
answer
asked
Mar 20, 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.
dc
series
motor
the
power
factor
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92
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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 .
value
starting
capacitor
fractional
horse
power
motor
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76
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1
answer
asked
Mar 20, 2018
by
anonymous
The fuse rating is expressed in terms of?
Last answer:
The fuse rating is expressed in terms of current.
fuse
rating
expressed
terms
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112
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1
answer
asked
Aug 12, 2018
by
anonymous
Why Transformer rating is given in kVA?
Why Transformer rating is given in kVA?
Last answer:
1) The output of transformer is limited by heating due to the losses. Two types of losses in the transformer (i) Iron loss, (ii) Copper loss. 2) Iron loss depends on the transformer voltage (V). ... by load power factor. - Hence the transformer output is expressed in VA or kVA and not in kW.
transformer
rating
kva
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2.7k
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4
answers
asked
Apr 29, 2018
by
anonymous
Boiler rating is usually defined in terms of
Boiler rating is usually defined in terms of (1) Maximum temperature of steam in Kelvin (2) Heat transfer rate in KJ/hr (3) Heat transfer area in metre2 (4) Steam output in kg/hr
Last answer:
Boiler rating is usually defined in terms of Steam output in kg/hr
boiler
rating
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160
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1
answer
asked
Sep 6, 2018
by
anonymous
State the range for low and medium resistance.
State the range for low and medium resistance.
Last answer:
Low resistances: less than 1 ohm. Medium resistances: 1 ohm to 0.1 Mega ohm.
range
low
medium
resistance
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42
views
1
answer
asked
Mar 22, 2018
by
anonymous
For diesel locomotives the range of horsepower is?
Last answer:
For diesel locomotives the range of horsepower is 1500 to 2500.
diesel
locomotives
range
horsepower
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61
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1
answer
asked
Apr 30, 2018
by
anonymous
For arc welding current range is usually
For arc welding current range is usually (1) 10 to 15 A (2) 30 to 40 A (3) 50 to 100 A (4) 100 to 350 A
Last answer:
For arc welding current range is usually 100 to 350 A
arc
welding
current
range
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108
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1
answer
asked
Aug 12, 2018
by
anonymous
Define kVA rating of transformer.
Define kVA rating of transformer.
Last answer:
kVA rating of transformer is defined as the product of voltage (V) and current (I) on primary side of transformer or secondary side of transformer divided by 1000. On both side the VA rating remains ... Mathematically kVA rating is given by, kVA rating of transformer = V1I1/1000 =V2I2/1000
kva
rating
transformer
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141
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1
answer
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.
shaded
pole
motor
used
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75
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1
answer
asked
Apr 29, 2018
by
anonymous
The range of frequencies used in induction heating is :
The range of frequencies used in induction heating is : (A) 0-25 Hz (C) less than 200 Hz (B) 50 to 100 Hz (D) more than 1 kHz
Last answer:
The range of frequencies used in induction heating is : more than 1 kHz
range
frequencies
used
induction
heating
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73
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1
answer
asked
Mar 22, 2018
by
anonymous
The braking retardation is usually in the range?
Last answer:
The braking retardation is usually in the range 10 to 15 km phps.
braking
retardation
usually
range
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203
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1
answer
asked
Sep 5, 2018
by
anonymous
List two types of oscillator, which generates frequency in RF range.
List two types of oscillator, which generates frequency in RF range.
Last answer:
Types of Oscillators generating frequencies in RF range: i) Hartley Oscillator ii) Colpitt’s Oscillator iii) Clapp Oscillator
two
types
oscillator
generates
frequency
rf
range
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47
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1
answer
asked
Sep 5, 2018
by
anonymous
How range of A.C. ammeter & A.C. voltmeter is extended? Draw suitable diagram.
How range of A.C. ammeter & A.C. voltmeter is extended? Draw suitable diagram.
Last answer:
Extension of A.C. Ammeter Range: The range of a.c. ammeter can be extended by using CT, the arrangement is shown in figure. The CT is current transformer having less number of primary turns carrying high ... high magnitude of source voltage. In this way range of a.c. voltmeter can be extended.
range
ac
ammeter
voltmeter
extended
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372
views
1
answer
asked
Mar 20, 2018
by
anonymous
In case the conditions for maximum power for a D.C. motor are established, the efficiency of the motor will be?
Last answer:
In case the conditions for maximum power for a D.C. motor are established, the efficiency of the motor will be less than 50%.
dc
motor
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96
views
1
answer
asked
Mar 20, 2018
by
anonymous
In a capacitor start motor, the phase displacement between starting and running winding can be nearly?
Last answer:
In a capacitor start motor, the phase displacement between starting and running winding can be nearly 90°.
capacitor
start
motor
phase
displacement
between
starting
running
winding
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129
views
1
answer
asked
Jun 18, 2018
by
anonymous
What is the frequency range of VHF electromagnetic waves?
What is the frequency range of VHF electromagnetic waves? A) 30-300 kHz B) 30-3000 kHz C) 30-300 MHz D) 30-3000 MHz
Last answer:
What is the frequency range of VHF electromagnetic waves? A) 30-300 kHz B) 30-3000 kHz C) 30-300 MHz D) 30-3000 MHz
frequency
range
vhf
electromagnetic
waves
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0
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394
views
1
answer
asked
Aug 8, 2019
by
anonymous
State RADAR range equation and write factor influencing maximum range.
State RADAR range equation and write factor influencing maximum range.
Last answer:
Free Space RADAR range Equation: 1.RADAR range equation relates the range of a RADAR to the chara. Of Tx, Rx, Antenna, target & environment. 2.Free space means RADAR and target are isolated in ... is no obstacle between RADAR antenna & the target. 4.There will be No absorption of EM waves.
radar
range
equation
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2.4k
views
1
answer
asked
Jul 27, 2019
by
anonymous
Define: i) Range ii) Span of instruments
Define: i) Range ii) Span of instruments
Last answer:
i) Range: It is defined as the difference between Greatest and Smallest value of the data or reading of the instrument. ii) Span: It is defined as the algebraic difference between the upper and lower range values
range
instruments
span
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51
views
1
answer
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.
two
value
capacitor
motor
used
running
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81
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.
direction
rotation
split
phase
motor
reversed
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143
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.
running
winding
single
phase
motor
testing
meggar
ground
location
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85
views
1
answer
asked
May 17, 2018
by
anonymous
In a single phase induction motor driving a fan load, the reason for having a high resistance rotor is to achieve
In a single phase induction motor driving a fan load, the reason for having a high resistance rotor is to achieve (A) low starting torque (B) quick acceleration (C) high efficiency (D) reduced size
Last answer:
In a single phase induction motor driving a fan load, the reason for having a high resistance rotor is to achieve quick acceleration
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169
views
1
answer
asked
Mar 20, 2018
by
anonymous
Which D.C. motor will be suitable along with flywheel for intermittent light and heavy loads?
Last answer:
Cumulatively compounded D.C. motor will be suitable along with flywheel for intermittent light and heavy loads.
dc
motor
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107
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1
answer
asked
Mar 20, 2018
by
anonymous
In a D.C. series motor, if the armature current is reduced by 50%, the torque of the motor will be equal to?
Last answer:
In a D.C. series motor, if the armature current is reduced by 50%, the torque of the motor will be equal to 25% of the previous value.
dc
motor
series
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141
views
1
answer
asked
Mar 20, 2018
by
anonymous
In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be?
Last answer:
In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be more than full-load current.
dc
shunt
motor
conditions
maximum
power
current
armature
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172
views
1
answer
asked
Aug 6, 2017
by
anonymous
which motor is use in ceiling fan?
which motor is use in ceiling fan?
Last answer:
Capacitor start capacitor run induction motor
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183
views
1
answer
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.
shaded
pole
motor
direction
rotation
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112
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.
single
phase
motor
centrifugal
switch
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129
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.
shaded
pole
single-phase
motor
field
use
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86
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.
shaded
pole
motor
shading
coil
usually
consist
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64
views
1
answer
asked
Mar 20, 2018
by
anonymous
In a split phase motor, the running winding should have?
Last answer:
In a split phase motor, the running winding should have low resistance and high inductance.
split
phase
motor
running
winding
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68
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1
answer
...