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Transformer coupling introduces which type of distortion?
asked
Mar 9, 2018
by
anonymous
Transformer coupling introduces which type of distortion?
transformer
coupling
type
distortion
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1
Answer
answered
May 27, 2018
by
Neha8235
Transformer coupling introduces
Cross over distortion.
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Related questions
asked
Mar 19, 2018
by
anonymous
Which type of winding is used in 3 phase shell-type transformer ?
Last answer:
Sandwich type winding is used in 3 phase shell-type transformer.
type
winding
used
phase
shell-type
transformer
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108
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1
answer
asked
Jun 18, 2018
by
anonymous
Which of the following device is used for coupling microwave energy?
Which of the following device is used for coupling microwave energy? A) Resonator B) Waveguide C) Loop D) Antenna
Last answer:
Which of the following device is used for coupling microwave energy? A) Resonator B) Waveguide C) Loop D) Antenna
device
used
coupling
microwave
energy
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1
answer
asked
Jul 27, 2019
by
anonymous
State any four characteristics of core type transformer.
State any four characteristics of core type transformer.
Last answer:
Characteristics of core type transformer: i) It has one window. ii) It has one magnetic circuit. iii) Core surrounds the winding. iv) Average length of core is more. v) Area of cross ... Better cooling for winding. vii) Mechnical strength is comparatively less. viii) Repair and maintenance is easy.
core
type
transformer
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1
answer
asked
May 8, 2018
by
anonymous
Cylindrical type transformer has:
Cylindrical type transformer has: (A) Single magnetic circuit (B) Double magnetic circuit (C) All of the above (D) None of the above
Last answer:
Cylindrical type transformer has: Single magnetic circuit
cylindrical
type
transformer
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1
answer
asked
Jun 18, 2018
by
anonymous
The second harmonic distortion is defined as the
The second harmonic distortion is defined as the A) Ratio of amplitude of second harmonic component in the output to that of the fundamental frequency B) Harmonic distortion due to only second harmonic component C) Sum of distortion of first and second harmonic components in the output
Last answer:
The second harmonic distortion is defined as the Ratio of amplitude of second harmonic component in the output to that of the fundamental frequency
second
harmonic
distortion
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1
answer
asked
Mar 10, 2018
by
anonymous
What is meant by distortion in amplifiers?
What is meant by distortion in amplifiers?
distortion
amplifiers
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0
answers
asked
Mar 10, 2018
by
anonymous
How does negative feedback reduces distortion in an amplifier?
How does negative feedback reduces distortion in an amplifier?
negative
feedback
reduces
distortion
amplifier
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answers
asked
Jul 24, 2019
by
anonymous
Give the different types of amplifier coupling.
Give the different types of amplifier coupling.
Last answer:
1. Resistance – capacitance (RC) coupling. 2. Inductance (LC) coupling. 3. Transformer coupling (TC) 4. Direct coupling (D.C.)
amplifier
coupling
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asked
Mar 20, 2018
by
anonymous
The coupling angle or load angle of synchronous motor is defined as the angle between the?
Last answer:
The coupling angle or load angle of synchronous motor is defined as the angle between the rotor and the stator poles of opposite polarity.
coupling
angle
load
synchronous
motor
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1
answer
asked
Nov 11, 2017
by
anonymous
What is Capacitive coupling ?
What is Capacitive coupling ?
Last answer:
Capacitive coupling is connecting a circuit to another circuit using a capacitor in order to allow only Ac signal to pass through from circuit1 to the other circuit.
capacitive
coupling
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asked
Aug 21, 2019
by
anonymous
working of distortion factor meter with block diagram
working of distortion factor meter with block diagram
Last answer:
Working : Initially the switch S is kept at position 1.The attenuator gets excluded and the bridge T network is adjusted for full suppression of fundamental frequency and hence we get ... is obtained on the meter.Thus the total rms distortion is indicated by the reading of attenuator.
distortion
factor
meter
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536
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1
answer
asked
Jun 18, 2018
by
anonymous
The effect of negative feedback on distortion and bandwidth is A) Both distortion and bandwidth get
The effect of negative feedback on distortion and bandwidth is A) Both distortion and bandwidth get decreased B) Both distortion and bandwidth get increased C) Distortion is reduced and bandwidth is increased D) Distortion is increased and bandwidth is decreased
Last answer:
The effect of negative feedback on distortion and bandwidth is Distortion is reduced and bandwidth is increased
effect
negative
feedback
distortion
bandwidth
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1
answer
asked
May 1, 2018
by
anonymous
An amplifier has a voltage gain of 120. To reduce distortion, 10% negative feedback is employed. The gain of
An amplifier has a voltage gain of 120. To reduce distortion, 10% negative feedback is employed. The gain of the amplifier with feedback is (1) 141 (2) 92.3 (3) 9.23 (4) 1.41
Last answer:
An amplifier has a voltage gain of 120. To reduce distortion, 10% negative feedback is employed. The gain of the amplifier with feedback is 9.23
amplifier
voltage
gain
reduce
distortion
negative
feedback
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157
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1
answer
asked
Apr 26, 2018
by
anonymous
A piezo-electric type pressure sensor has a sensitivity of 1 mV/kPa and a bandwidth of 300 Hz to 300 kHz.
A piezo-electric type pressure sensor has a sensitivity of 1 mV/kPa and a bandwidth of 300 Hz to 300 kHz. For a constant (dc) pressure of 100 kPa, the steady state output of the sensor in millivolt is (A) 0 (B) 2 (C) 4 (D) 6
Last answer:
A piezo-electric type pressure sensor has a sensitivity of 1 mV/kPa and a bandwidth of 300 Hz to 300 kHz. For a constant (dc) pressure of 100 kPa, the steady state output of the sensor in millivolt is 0
piezo-electric
type
pressure
sensor
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130
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1
answer
asked
Mar 19, 2018
by
anonymous
Which is the most common type of fault?
Which is the most common type of fault?
Last answer:
Single phase to ground fault is the most common type of fault.
common
type
fault
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71
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1
answer
asked
Mar 15, 2018
by
anonymous
Which type of starter is used to start the DC motor?
Which type of starter is used to start the DC motor?
type
starter
used
start
dc
motor
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59
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0
answers
asked
Mar 11, 2018
by
anonymous
Which type of motor is used in lift?
Which type of motor is used in lift?
Last answer:
Synchronous motor
type
motor
used
lift
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1
answer
asked
Mar 11, 2018
by
anonymous
Which type of heater is cheapest to run?
Which type of heater is cheapest to run?
type
heater
cheapest
run
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56
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0
answers
asked
Apr 27, 2018
by
anonymous
To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ?
To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ?
Last answer:
To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ? Δ-Δ connection
protect
power
transformer
neutral
grounded
fault
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317
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1
answer
asked
Mar 19, 2018
by
anonymous
A shell-type transformer has?
Last answer:
A shell-type transformer has reduced magnetic leakage.
shell-type
transformer
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1
answer
asked
Mar 28, 2018
by
anonymous
Which type of fading causes serious distortion of modulated signal:
Last answer:
Which type of fading causes serious distortion of modulated signal: Selective fading.
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91
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1
answer
asked
Jan 2
by
anonymous
Explain working of a storage type water cooler with a sketch.
Explain working of a storage type water cooler with a sketch.
Last answer:
The storage type cooler has the evaporator coil soldered on to the walls of the storage tank of the cooler, generally on to the outside surface of the walls. The tank could be of the ... outside at a lower level, much below the lower most evaporator refrigerant tube soildered on to the tank.
storage
type
water
cooler
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12
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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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69
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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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53
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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
Sep 4, 2019
by
anonymous
operation of ramp type DVM.
operation of ramp type DVM.
Last answer:
This is given to an input comparator which will compare two signals and generates the output. One input to the input comparator is from the input and another input is from the ramp. This input voltage and ... ground and output is given. This output will stop the flow of purchase from clock
operation
ramp
type
dvm
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145
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1
answer
asked
Sep 2, 2019
by
anonymous
operating principle of condenser type microphone with neat diagram.
operating principle of condenser type microphone with neat diagram.
Last answer:
Principle: When sound pressure moves the diapharam in, the capacitance increases, and when it moves out, the capacitance decreases. The change in capacitance results in change in out put voltage of microphone. ... in volts. Q= charge in coulombs C= capacitance in farad Diagram:
condenser
type
microphone
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1
answer
asked
Aug 5, 2019
by
anonymous
Describe the working principle of photoelectric pickup type tacho-generator.
Describe the working principle of photoelectric pickup type tacho-generator.
Last answer:
Working: Working principle: The light passes through the holes available on the rotating disc with a specific interval, depends on the angular speed of disc having equidistant holes. The frequency of this light pulses ... by N=f/HS N=speed f=frequency Hs=holes on the disc
working
principle
photoelectric
pickup
type
tacho-generator
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1
answer
asked
Aug 5, 2019
by
anonymous
State the use of RADAR type level transducer & list two advantages.
State the use of RADAR type level transducer & list two advantages.
Last answer:
Applications of radar type transducer: i) RADAR type level transducer is suitable for large tanks with range upto 200m for level measurement. ii) It is used for continuous level measurement. ... iii) Not affected by corrosive materials. iv) Can be used for hard to handle' applications.
radar
type
level
transducer
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1
answer
asked
Sep 29, 2018
by
anonymous
With diagram explain bottoming cycle type of co-generation.
With diagram explain bottoming cycle type of co-generation.
Last answer:
Bottoming cycle type of co-generation: i) Bottoming cycle of co-generation system is that in which high temperature heat energy is produced using primary fuels. ii) This heat produced is ... of the system greatly. vii) Bottoming cycles are suitable for cement industries, ceramic factories etc.
bottoming
cycle
type
co-generation
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87
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1
answer
asked
Sep 8, 2018
by
anonymous
Describe principle of operation of Doppler type ultrasonic flow meter with diagram.
Describe principle of operation of Doppler type ultrasonic flow meter with diagram.
Last answer:
Diagram: Working: The flow meter consists of a crystal transducer mounted outside the pipe in which flow is to be measured. This transducer is a piezoelectric crystal which ... , so the frequency of the reflected wave is shifted to particle velocity, according to Doppler principle.
principle
operation
doppler
type
ultrasonic
flow
meter
diagram
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1
answer
asked
Sep 6, 2018
by
anonymous
Draw the diagram and explain the working of ferrodynamic type frequency meter.
Draw the diagram and explain the working of ferrodynamic type frequency meter.
Last answer:
Ferrodynamic type frequency meter: (Electrical resonance type frequency meter): It consists of a fixed coil. The supply whose frequency is to be measured is connected across it. This coil ... so selected that the moving coil takes up a convenient position when frequency is of normal value.
ferrodynamic
type
frequency
meter
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1
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asked
Sep 6, 2018
by
anonymous
State the function and shape of following parts used in induction type energy meter: i) Series magnet ii) Shunt magnet iii) Al disc iv) Brake magnet
State the function and shape of following parts used in induction type energy meter: i) Series magnet ii) Shunt magnet iii) Al disc iv) Brake magnet
Last answer:
i) Series magnet: produce flux proportional to current (load current) of circuit and interact in the aluminum disc with flux produced by voltage magnet for torque production. Its shape is like letter U. ii) ... : brakes the motion of the aluminum disc or slows it down. Its shape is like letter C.
induction
type
energy
meter
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71
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1
answer
asked
Sep 6, 2018
by
anonymous
With neat sketch explain working of Weston type synchroscope.
With neat sketch explain working of Weston type synchroscope.
Last answer:
Weston type synchroscope: Working: It consists of three limbed transformer. The winding on one of the outer limbs is excited from bus- bars and that on other limb by incoming machine. The two fluxes ... the lamp is flickering at a very much slow rate and it is at its maximum brightness.
weston
type
synchroscope
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497
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1
answer
asked
Sep 6, 2018
by
anonymous
State the effects of errors in dynamometer type wattmeter due to i) pc- inductance ii) pc- capacitance iii) mutual inductance iv) Connection.
State the effects of errors in dynamometer type wattmeter due to i) pc- inductance ii) pc- capacitance iii) mutual inductance iv) Connection.
Last answer:
Errors in wattmeter: i) pc - inductance: Pressure coil inductance causes wattmeter to read more power than actual . ii) pc-capacitance: The wattmeter reads less power. iii) ... iv) Connection: In uncompensated wattmeter , the reading of wattmeter includes the powerloss in coils.
dynamometer
type
wattmeter
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70
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1
answer
asked
Sep 6, 2018
by
anonymous
With a neat sketch explain working of 1 phase dynamometer type power factor meter.
With a neat sketch explain working of 1 phase dynamometer type power factor meter.
Last answer:
Working of 1 phase dynamometer type power factor meter : The current coil is connected in series with load. Two pressure coils marked as A and B are connected across the supply terminals ... becomes stationary and the pointer shows steady deflection corresponding to the power factor of the load.
phase
dynamometer
type
power
factor
meter
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83
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1
answer
asked
Sep 6, 2018
by
anonymous
Draw a neat sketch of 1-ph induction type energy meter and write operating principle of it.
Draw a neat sketch of 1-ph induction type energy meter and write operating principle of it.
Last answer:
Operating Principal:- The disc is placed between the two-flux due to pressure coil and flux due to current coil, which will set up torque on the disc which is proportional to power causing the ... is proportional to voltage, the second carries a current coil so its flux is proportional to current.
induction
type
energy
meter
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1
answer
asked
Sep 6, 2018
by
anonymous
With neat diagram explain constructional details of dynamometer type wattmeter.
With neat diagram explain constructional details of dynamometer type wattmeter.
Last answer:
Working Principle of Wattmeter: It consists of two stationary coils, called current coils and one moving coil, called voltage or potential coil. The moving coil is mounted on the spindle, in the gap ... experiences a force and tends to move in the direction as per Fleming's left hand rule.
dynamometer
type
wattmeter
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3
answers
asked
Sep 5, 2018
by
anonymous
Explain construction & working of attraction type M.I. instrument with neat diagram.
Explain construction & working of attraction type M.I. instrument with neat diagram.
Last answer:
1. Moving element: a small piece of soft iron in the form of a vane or rod. 2. In Attracted type a cylindrical coil or solenoid which is kept fixed. An oval-shaped soft-iron piece are ... 9. When = the pointer will be stable & we can get correct reading of the electrical quantity
construction
working
attraction
type
mi
instrument
diagram
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2
answers
asked
Sep 5, 2018
by
anonymous
Explain working of Weston type frequency meter.
Explain working of Weston type frequency meter.
Last answer:
Weston Type Frequency Meter: There are two fixed coils marked as A and B. Each coil divided into two equal parts and are fixed such that their magnetic axis are perpendicular to each ... leading to deflections in either direction depending on the currents there in, due to changed impedances.
working
weston
type
frequency
meter
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2
answers
asked
Sep 5, 2018
by
anonymous
Explain construction & working of electrodynamometer type wattmeter.
Explain construction & working of electrodynamometer type wattmeter.
Last answer:
Electrodynamometer Type Wattmeter: Construction: It essentially consists of the fixed and moving coil. The fixed coil is split into two equal parts which are placed close together and parallel to each other. ... hence these instruments can be used for measurement of A.C. & D.C. power.
construction
working
electrodynamometer
type
wattmeter
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585
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1
answer
asked
Sep 5, 2018
by
anonymous
Write any two advantages of MI type instrument.
Write any two advantages of MI type instrument.
Last answer:
Advantages of MI Type Instrument: 1. These are robust in construction. 2. Used for both A.C. as well as D.C. measurements. 3. These are economical. 4. These possess high operating torque 5. These are simple in construction hence can be easily handled.
advantages
mi
type
instrument
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asked
Sep 5, 2018
by
anonymous
List any four errors in induction type energy meter. Give method of compensation for each.
List any four errors in induction type energy meter. Give method of compensation for each.
Last answer:
Errors in Induction Type Energy Meter with their Compensation: 1) Error due to friction: This error can be compensated by the additional shading band provided on the shunt electromagnet. 2) Phase ... error: This error can be compensated by providing a flux diverter' to the current magnet.
errors
induction
type
energy
meter
method
compensation
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707
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asked
Sep 5, 2018
by
anonymous
Describe the operation of N channel enhancement type MOSFET with diagram.
Describe the operation of N channel enhancement type MOSFET with diagram.
Last answer:
As its name indicates, this MOSFET operates only in the enhancement mode and has no depletion mode. It operates with large positive gate voltage only. It does not conduct when the ... of charge carriers attracted to the positive gate. Thus drain current is controlled by the gate potential.
operation
n-channel
enhancement
type
mosfet
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answer
asked
May 8, 2018
by
anonymous
The number of insulator discs (each rated 11 kV) required in a suspension type insulator string
The number of insulator discs (each rated 11 kV) required in a suspension type insulator string of 220 kV line is
Last answer:
The number of insulator discs (each rated 11kV) required in a suspension type insulator string of 220 kV line is 16
insulator
discs
suspension
type
string
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1
answer
asked
Apr 30, 2018
by
anonymous
For measurement of radio frequency ac signals __________ type meter is used
For measurement of radio frequency ac signals __________ type meter is used
Last answer:
For measurement of radio frequency ac signals thermo-couple type meter is used
measurement
radio
frequency
ac
signals
type
meter
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1
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asked
Apr 28, 2018
by
anonymous
The operation of a ramp type Digital Voltmeter is based on the principle of
The operation of a ramp type Digital Voltmeter is based on the principle of (A) Voltage-to-current conversion. (B) Voltage-to-time conversion. (C) Current-to-time conversion. (D) Current-to-frequency conversion.
Last answer:
The operation of a ramp type Digital Voltmeter is based on the principle of Voltage-to-time conversion.
operation
ramp
type
digital
voltmeter
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80
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1
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asked
Apr 28, 2018
by
anonymous
The number of comparators required in a 4 bit comparator type ADC is
The number of comparators required in a 4 bit comparator type ADC is (A) 16 (B) 15 (C) 17 (D) 12
Last answer:
The number of comparators required in a 4 bit comparator type ADC is 15
comparators
bit
comparator
type
adc
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249
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1
answer
asked
Apr 28, 2018
by
anonymous
A suspension type insulator has 2 units with self capacitance C and ground capacitance of 0.2 C. Each unit can
A suspension type insulator has 2 units with self capacitance C and ground capacitance of 0.2 C. Each unit can withstand for a maximum voltage of 11 kV. Its string efficiency is (A) 78% (B) 82% (C) 80% (D) 84%
suspension
type
insulator
self
capacitance
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0
answers
asked
Mar 22, 2018
by
anonymous
What type of biasing is used in CE amplifier?
What type of biasing is used in CE amplifier?
type
biasing
used
ce
amplifier
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answers
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