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Recent questions tagged state
asked
Jan 2
by
anonymous
State jumping operation.
State jumping operation.
Last answer:
Jumping up operation: This process makes metal shorter and thicker and carried out at near welding temperature. Metal can be either thickened at the ends of bars or swollen in the center.
state
jumping
operation
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1
answer
asked
May 7, 2020
by
anonymous
State Magneto-striction. Draw Hysteresis loop for : (i) High silicon steel (ii) Copper (iii) Soft iron (iv) Wood
State Magneto-striction. Draw Hysteresis loop for : (i) High silicon steel (ii) Copper (iii) Soft iron (iv) Wood
Last answer:
Magneto-striction: It is the change in dimensions of ferro magnetic material when it is magnetized for eg. Silicon steel, iron or any ferromagnetic material. i) Hysteresis loop for High silicon steel : ... loop for Soft iron : iv) Hysteresis loop for Copper and Wood :
state
magneto-striction
draw
hysteresis
loop
for
i
high
silicon
steel
ii
copper
iii
soft
iron
iv
wood
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101
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1
answer
asked
May 7, 2020
by
anonymous
State the procedure for testing of earth pit resistance with necessary diagrams.
State the procedure for testing of earth pit resistance with necessary diagrams.
Last answer:
Following procedure (Method) for testing of earth pit resistance with necessary diagrams. 1) Earth Tester : i) Three point method ii) Four point method 2) By Potential drop method 3 ... of that earthing pit. In this test the accuracy is less but electrical rods are not required.
state
the
procedure
for
testing
of
earth
pit
resistance
with
necessary
diagrams
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1
answer
asked
May 7, 2020
by
anonymous
State the procedure for laying / installation of underground cable.
State the procedure for laying / installation of underground cable.
Last answer:
1) Direct laying Cable: or Trench laying method: Procedure: * For laying of a cable trench about 1.5m deep and 0.5m wide is made along the cable route. * A ... over. * Cables laid in this manner are usually plain lead covered because troughing affords good mechanical protection.
state
the
procedure
for
laying
installation
of
underground
cable
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74
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1
answer
asked
May 7, 2020
by
anonymous
State the insulating materials used in motor. Write temperature class and withstand temperature ranges for them.
State the insulating materials used in motor. Write temperature class and withstand temperature ranges for them.
Last answer:
The insulating materials used in motor are as belows: 1. Cotton, 2. Silk, or paper, 3. Press board, 4. Resins 5. PVC 6. Cellulose-Fiber, 7. Enameled coating, etc ... Over 180° Mica, porcelain, ceramics, glass quartz, asbestos, treated glass fiber or treated asbestos. etc.
state
the
insulating
materials
used
in
motor
write
temperature
class
and
withstand
ranges
for
them
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1
answer
asked
May 7, 2020
by
anonymous
Explain HRGO and CRGO. State benefits of CRGO for manufacturing of core.
Explain HRGO and CRGO. State benefits of CRGO for manufacturing of core.
Last answer:
i) HRGO ( Hot -rolled grain oriented steel): * To minimize the size of machine flux density should be high with small magneto motive force (MMF). Due to this iron loss will ... percentage of silicon which in turn increases the resistance compared to regular steel which reduces eddy currents.
explain
hrgo
and
crgo
state
benefits
of
for
manufacturing
core
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337
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1
answer
asked
May 7, 2020
by
anonymous
State any two advantages of MCB over Fuse. State the standard specifications of MCB available in the market.
State any two advantages of MCB over Fuse. State the standard specifications of MCB available in the market.
Last answer:
Following advantages of MCB over Fuse: 1. No need of replacement of fuse wire. 2. Manually restore of supply is simple. 3. Fault understanding by visual inspection 4. More safe than fuse The standard specifications of ... 6A, 10A,16A,20A, 25A, 30A, 32A, 40A, 50A, 60A and 63A 6. 250V and 450 v
state
any
two
advantages
of
mcb
over
fuse
the
standard
specifications
available
in
market
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1
answer
asked
May 7, 2020
by
anonymous
State two applications of : (i) PVC paper (ii) Porcelain with type of class based on withstand temperature is insulating material.
State two applications of : (i) PVC paper (ii) Porcelain with type of class based on withstand temperature is insulating material.
Last answer:
(i) Application of PVC paper : 1. It is used in slot lining or motor winding insulation purpose 2. For Insulation of Transformer winding (ii) Application of Porcelain : 1. Mainly used for manufacturing ... on withstand temperature : * H' & C' Class of insulation i e. 180° and above 180°C
state
two
applications
of
i
pvc
paper
ii
porcelain
with
type
class
based
on
withstand
temperature
is
insulating
material
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1
answer
asked
May 7, 2020
by
anonymous
State any Four lE Rules regarding electric safety.
State any Four lE Rules regarding electric safety.
Last answer:
lE Rules regarding electric safety: 1. IE Rule 3 : Authorization 2. IE Rule 29 : Construction and maintenance of electrical supply line and apparatus 3. IE Rule 30: Service line and apparatus on ... 26. IE Rule 60: Test for resistance of insulation 27. IE Rule 61: Connection with earth
state
any
four
le
rules
regarding
electric
safety
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1
answer
asked
May 7, 2020
by
anonymous
Define earthing. State its types.
Define earthing. State its types.
Last answer:
Definition of earthing: * Earthing means connecting the metal body of electrical device to the general mass of earth by a wire of negligible resistance. OR * Earthing means connecting the metal body of ... ii) Pipe type earthing iii) Rod type earthing iv) Strip earthing v)Water main earthing
define
earthing
state
its
types
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1
answer
asked
May 7, 2020
by
anonymous
State the type of insulating materials under Class Y and Class B.
State the type of insulating materials under Class Y and Class B.
Last answer:
The type of insulating materials under Class Y : 1. Cotton 2. Silk 3. Paper 4. Rubber 5. PVC The type of insulating materials under Class B: 1. Backelite 2. Impregnated varnish 3. Mica 4. Fiber glass 5. Asbestos
state
the
type
of
insulating
materials
under
class
y
and
b
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1
answer
asked
May 7, 2020
by
anonymous
State gaseous and liquid insulating material.
State gaseous and liquid insulating material.
Last answer:
i) Gaseous insulating material : 1. Air 2. Nitrogen 3. Hydrogen 4. SF6 ii) liquid insulating material: 1. Transformer oil 2. Capacitor oil 3. Cable oil 4. Pyranol 5. Savotal 6. Savol 7. Vegetable oil 8. Silicon liquids
state
gaseous
and
liquid
insulating
material
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1
answer
asked
May 7, 2020
by
anonymous
State the material used for making (1) Magnetic Core (2) Fuse element
State the material used for making (1) Magnetic Core (2) Fuse element
Last answer:
The material used for making of: (1) Magnetic Core : Iron, cobalt, Nickel, CRGO, HRGO , silicon steel (2) Fuse Element: Tin- lead wire, Tinned copper wire
state
the
material
used
for
making
1
magnetic
core
2
fuse
element
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1
answer
asked
May 7, 2020
by
anonymous
State the types of protections provided by MCB.
State the types of protections provided by MCB.
Last answer:
The types of protections provided by MCB: 1. MCB provides short circuit protection. 2. MCB provides overload protection
state
the
types
of
protections
provided
by
mcb
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1
answer
asked
May 7, 2020
by
anonymous
State different types of holders used in wiring installation.
State different types of holders used in wiring installation.
Last answer:
Following types of holders used in wiring installation: 1. Pendent Holder 2. Batten Holder 3. Angle holder 4. Screwed holder
state
different
types
of
holders
used
in
wiring
installation
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1
answer
asked
May 7, 2020
by
anonymous
State the applications of TIG welding.
State the applications of TIG welding.
Last answer:
The applications of TIG welding are as follows: 1. Mostly used to weld aluminum and aluminum alloys. 2. It is used to weld stainless steel, carbon base alloy, copper base alloy, nickel base alloy etc. 3. It is used to welding dissimilar metals. 4. It is mostly used in aerospace industries.
state
the
applications
of
tig
welding
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1
answer
asked
May 7, 2020
by
anonymous
State the applications of rolling.
State the applications of rolling.
Last answer:
Applications of rolling are as follows: 1. Concrete reinforcing bars. 2. Plates. 3. Wire rods. 4. Sheet and strip. 5. Rails. 6. Piping and tubes. 7. Body panels. 8. Construction materials
state
the
applications
of
rolling
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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
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1
answer
asked
May 7, 2020
by
anonymous
State advantages of rotating field type alternators.
State advantages of rotating field type alternators.
Last answer:
Advantages of Rotating Field Type Alternator: 1) For high-voltage alternator, large space is required to accommodate conductors with insulation, as high voltage is induced in them. If field poles are placed ... is kept rotating. 8) Rotating field is comparatively light and can run with high speed.
state
advantages
of
rotating
field
type
alternators
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1
answer
asked
May 7, 2020
by
anonymous
State advantages of short pitch winding over full pitch winding in alternators.
State advantages of short pitch winding over full pitch winding in alternators.
Last answer:
Advantages of Short Pitch Winding over Full Pitch Winding in Alternators: 1) Short pitching reduces the amount of copper needed for end connection when compared with full pitched coil. 2) They ... reduced, thereby increasing the efficiency. 4) The power quality of generated emf is improved.
state
advantages
of
short
pitch
winding
over
full
in
alternators
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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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1
answer
asked
May 6, 2020
by
anonymous
State the need of automation.
State the need of automation.
Last answer:
Need of Automation in Process : * To fulfill the demand of product at right time. * To reduce the human errors and involvement of human being in the process. * For better productivity. * For better ... of process. * For better quality. * For reducing man power. * For reducing cost of product.
state
the
need
of
automation
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1
answer
asked
May 6, 2020
by
anonymous
State the impact of inductance and resistance on transmission line performance
State the impact of inductance and resistance on transmission line performance
Last answer:
Impact of inductance on transmission line: 1) It causes IXL drop in transmission line which affects regulation. 2) It is the only parameter which decides power transmission capacity of line i. ... is very small, it causes losses, temperature rise& poor voltage regulation so it cannot be neglected
state
the
impact
of
inductance
and
resistance
on
transmission
line
performance
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1
answer
asked
May 5, 2020
by
anonymous
State properties of conductor material used for overhead conductor.
State properties of conductor material used for overhead conductor.
Last answer:
Following are the properties of conductor material:- 1. High conductivity :- Material should have high conductivity 2. High mechanical strength:- Material should have sufficiently high mechanical strength ... available & less costly. 9. Scrap Value: - Material should have high scrap value.
state
properties
of
conductor
material
used
for
overhead
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1
answer
asked
May 5, 2020
by
anonymous
State the classification of distribution substation.
State the classification of distribution substation.
Last answer:
The classification of distribution substation. 1. Pole mounted distribution substation 2. Plinth mounted distribution substation 3. Compact/prefabricated distribution substation 4. ... Indoor distribution substation 6. Outdoor distribution substation 7. Mobile distribution substation
state
the
classification
of
distribution
substation
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1
answer
asked
May 3, 2020
by
anonymous
State the needs and benefits of star labelling.
State the needs and benefits of star labelling.
Last answer:
Needs of star labelling: * Star labelling is meanly required to recognize quality of product * Star labelling is also required to determine life and efficiency of the product. * Star labels ... emission and air pollution will be reduces. 5. Market efficiency and compilation will be improve.
state
the
needs
and
benefits
of
star
labelling
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1
answer
asked
May 3, 2020
by
anonymous
State the difference between energy conservation and energy audit.
State the difference between energy conservation and energy audit.
Last answer:
energy conservation Energy audit It is reducing the growth of energy consumption by avoiding unnecessary usage of energy It is an inspection, survey & analysis of energy flows ... Various measuring instruments, with proper sensing elements are required for the energy audit.
state
the
difference
between
energy
conservation
and
audit
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1
answer
asked
May 3, 2020
by
anonymous
State the advantages of cogeneration.
State the advantages of cogeneration.
Last answer:
Advantages of co-generation: 1) Co-generation can meet both power & heat requirements. 2) Less cost than conventional generation. 3) Higher system efficiency due to energy wastage is highly ... reduces due to cogeneration plant is located in same premises. 10) It can maintain grid stability
state
the
advantages
of
cogeneration
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1
answer
asked
May 3, 2020
by
anonymous
State the losses in secondary distribution system.
State the losses in secondary distribution system.
Last answer:
The losses in secondary distribution system: a) Technical losses: 1. Due to poor voltage 2. Due to unbalance load 3. Due poor quality of transformer & its components 4. Due to poor quality ... of induction type of energy meter. 3. Lack of administration. 4. Energy theft 5. Unmetered supply
state
the
losses
in
secondary
distribution
system
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1
answer
asked
May 3, 2020
by
anonymous
State the requirements of illumination scheme of shipyard.
State the requirements of illumination scheme of shipyard.
Last answer:
Requirements of illumination scheme of shipyard: 1) The shipyard lighting always depends upon the surrounding conditions. e.g. wind pressure, rain fall, location of shipyard from the sea-share etc. ... solar grass lamps, LED-Solar energy lawn lamps, various focus lamps, metal halide lamps etc.
state
the
requirements
of
illumination
scheme
shipyard
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1
answer
asked
May 3, 2020
by
anonymous
State the various lighting calculations methods and Describe any one of them.
State the various lighting calculations methods and Describe any one of them.
Last answer:
Lighting calculation methods: 1. Lumens or Light flux method 2. Point to point or Inverse Square law method 3. Watts per Square meter method i) Lumens or Light ... is taken according to the illumination desired on an average value considering overall efficiency of the lighting system.
state
the
various
lighting
calculations
methods
and
describe
any
one
of
them
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1
answer
asked
May 3, 2020
by
anonymous
State the different types of outdoor flood lighting and where are they used.
State the different types of outdoor flood lighting and where are they used.
Last answer:
There are three types of projectors used for flood lighting : a) Narrow beam Projector b) Medium angle Projector c) Wide angle Projector a) Narrow beam Projectors: - Light beam with such ... yards, stadiums, car parking area etc. 3) It is used for illuminating advertisements, boarding's etc.
state
the
different
types
of
outdoor
flood
lighting
and
where
are
they
used
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1
answer
asked
May 3, 2020
by
anonymous
State the purpose of lighting control. List the different types of dimmer.
State the purpose of lighting control. List the different types of dimmer.
Last answer:
Purpose of Lighting Control:- 1. To turn ON or OFF the lamps 2. For dimming: The dimming control permits the adjustment of lighting over a range. 3. For changing the lighting levels ... operated dimmer 6) Triac operated Dimmer 7) PWM (Pulse width modulation) Controlled technique.
state
the
purpose
of
lighting
control
list
different
types
dimmer
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1
answer
asked
May 3, 2020
by
anonymous
State design considerations for illumination scheme of commercial complex.
State design considerations for illumination scheme of commercial complex.
Last answer:
Design considerations for illumination scheme of commercial complex: * Tasks to be performed in the space * Desired light levels based on the tasks performed in the space * Room size ... conditions * Cleanliness of the area during operation * Maintenance schedule * Availability of daylight
state
design
considerations
for
illumination
scheme
of
commercial
complex
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1
answer
asked
May 3, 2020
by
anonymous
State the selection criterion of the lamp for various purposes.
State the selection criterion of the lamp for various purposes.
Last answer:
Selection criterion of the lamp for various purposes: While selecting a lamp for a particular purpose, the available lamps are compared on the basis of following criteria: * Light output ... such as ballasts * Compatibility with the electrical system * Suitability for the operating environment
state
the
selection
criterion
of
lamp
for
various
purposes
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64
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1
answer
asked
May 3, 2020
by
anonymous
State the first law of illumination
State the first law of illumination
Last answer:
This law states that the illuminance (E) at any point on a plane perpendicular to the line joining the point and source is inversely proportional to the square of the distance between the source and plane. ... in a given direction. d - Distance between the source and plane E - Illuminance
state
the
first
law
of
illumination
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1
answer
asked
May 3, 2020
by
anonymous
State two types of Electronic dimmer.
State two types of Electronic dimmer.
Last answer:
Two types of electronic dimmers are: 1) S.C.R. operated dimmer 2) Triac operated dimmer
state
two
types
of
electronic
dimmer
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69
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1
answer
asked
May 2, 2020
by
anonymous
State different types of electrical signal and draw all types of waveforms.
State different types of electrical signal and draw all types of waveforms.
Last answer:
Types of electrical signals 1) Sine wave 2) Triangular wave 3) Square wave Waveforms
state
different
types
of
electrical
signal
and
draw
all
waveforms
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79
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1
answer
asked
May 2, 2020
by
anonymous
State advantages of MOSFET.
State advantages of MOSFET.
Last answer:
Advantages of MOSFET * MOSFETs provide greater efficiency while operating at lower voltages. * Absence of gate current results in high input impedance. * High switching speed. * They operate at lower ... due to lower resistance of channel. * They are easy to manufacture. * They are portable.
state
advantages
of
mosfet
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1
answer
asked
May 2, 2020
by
anonymous
What do you mean by active filter? State its advantages over passive filter . Define pass band & stop band with respect to filter.
What do you mean by active filter? State its advantages over passive filter . Define pass band & stop band with respect to filter.
Last answer:
Active Filter: Active Filter is formed by using active element along with the passive components. Advantages of Active filter over Passive filter: High value of pass band gain can be obtained. It is ... pass band. Stop Band Filter: The frequency range which is attenuated is known as stop band.
active
filter
state
its
advantages
over
passive
define
pass
band
&
stop
with
respect
to
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1
answer
asked
May 2, 2020
by
anonymous
State functions of the following pins of IC555.
State functions of the following pins of IC555.
Last answer:
1) Control: - The dc Voltage at this pin is 2/3 Vcc. An external voltage applied to this changes threshold as well as trigger voltage to obtain pulse width modulated output. 2) Trigger: - The ... greater than 2/3 Vcc . When the voltage goes below 1/3 Vcc, output of the timer goes high.
state
functions
of
the
following
pins
ic555
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1
answer
asked
Apr 27, 2020
by
anonymous
State function of ELCB.
State function of ELCB.
Last answer:
Functions of ELCB: 1. Provides protection to apparatus by detecting the unsafe magnitudes of leakage currents diverting to earth. 2. Disconnect the supply to the circuit if line to ground ... 3. Provides protection to users by detecting the unsafe magnitudes of leakage currents diverting to earth.
state
function
of
elcb
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61
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1
answer
asked
Apr 27, 2020
by
anonymous
List different types of stepper motor. State one application of stepper motor.
List different types of stepper motor. State one application of stepper motor.
Last answer:
Types of stepper motor : (i)Variable - reluctance motor (ii) Permanent- magnet motors (iii) Hybrid motors. Applications of stepper motor : In robotics, In CNC machines, In computers, printers, ... In Watches, In biomedical applications such as X-ray machines, CT scan, In Process control systems.
list
different
types
of
stepper
motor
state
one
application
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1
answer
asked
Apr 27, 2020
by
anonymous
State the principle of operation of d.c. motor.
State the principle of operation of d.c. motor.
Last answer:
When a current carrying conductor is placed in a magnetic field, the conductor experiences the force. The magnitude of force is given by F = BIL newton where F – Force B – maximum flux density I – Current L – Length of conductor
state
the
principle
of
operation
d
c
motor
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1
answer
asked
Apr 16, 2020
by
anonymous
State the external causes of failure of electrical equipment.
State the external causes of failure of electrical equipment.
state
the
external
causes
of
failure
electrical
equipment
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45
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0
answers
asked
Apr 16, 2020
by
anonymous
Define Dielectric Strength for transformer oil. State its value for new transformer oil.
Define Dielectric Strength for transformer oil. State its value for new transformer oil.
define
dielectric
strength
for
transformer
oil
state
its
value
new
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Apr 16, 2020
by
anonymous
State factors affecting the life of insulating materials.
State factors affecting the life of insulating materials.
state
factors
affecting
the
life
of
insulating
materials
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87
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0
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asked
Sep 22, 2018
by
anonymous
State the functions of National Productivity Councils
State the functions of National Productivity Councils
Last answer:
Functions of National Productivity Councils: i. Consultancy to organizations on productivity improvement ii. Training to personnel at different levels iii. Dissemination of Productivity information ... . iv. Productivity Research and Database v. Productivity Publications vi. Productivity Awards
state
functions
national
productivity
councils
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1
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asked
Sep 22, 2018
by
anonymous
State two factors deciding size of conduit.
State two factors deciding size of conduit.
Last answer:
Following factors deciding size of conduit: 1) Types of wiring method 2) No. of wires carried out through conduit 3) Size of wires required for sub circuits which is carried out through conduit 4) Future expansion.
state
factors
deciding
size
conduit
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250
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1
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asked
Sep 22, 2018
by
anonymous
State I.E. Rule No.90
State I.E. Rule No.90
Last answer:
I.E. Rule No.90: All metal supports of overhead lines and metallic fittings attached there to, shall be permanently and effectively earthed. For this purpose, a continuous earth wire shall be provided and ... one insulator has been placed in at a height not less than 3.3 m from the ground.
state
ie
rule
no
90
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