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What is a signal in science?
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Mar 11, 2018
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anonymous
What is a signal in science?
signal
science
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Mar 11, 2018
by
anonymous
What do you mean by signal processing?
What do you mean by signal processing?
signal
processing
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Mar 11, 2018
by
anonymous
What do you mean by signal and system?
What do you mean by signal and system?
signal
system
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48
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Mar 10, 2018
by
anonymous
What is difference between computer engineering and computer science?
What is difference between computer engineering and computer science?
difference
between
computer
engineering
science
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Aug 9, 2019
by
anonymous
What is the significance of signal conditioner? Explain the need of following in mechatronics system. i) Isolator ii) Filter iii) Amplifier iv) Data converter
What is the significance of signal conditioner? Explain the need of following in mechatronics system. i) Isolator ii) Filter iii) Amplifier iv) Data converter
Last answer:
Significance: Signal conditioning means manipulating an analog signal in such a way that it meets the requirements of the next stage for further processing. Signal inputs accepted by signal ... -frequency converters, current-to-voltage converters, current loop converters, and charge converters.
signal
conditioner
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Mar 10, 2018
by
anonymous
What are the advantages of a digital signal?
What are the advantages of a digital signal?
Last answer:
It has only two variable input and output (low or high) (0 or 5).
advantages
digital
signal
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Jun 18, 2018
by
anonymous
What is the Laplace transform of step signal of 5 units magnitude?
What is the Laplace transform of step signal of 5 units magnitude? A) 5s B) 5/s C) s/5 D) 1/s
Last answer:
What is the Laplace transform of step signal of 5 units magnitude? A) 5s B) 5/s C) s/5 D) 1/s
laplace
transform
step
signal
units
magnitude
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Mar 10, 2018
by
anonymous
What is the use of digital signal processing?
What is the use of digital signal processing?
use
digital
signal
processing
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Mar 10, 2018
by
anonymous
What is the use of signal flow graph?
What is the use of signal flow graph?
use
signal
flow
graph
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asked
Jun 18, 2018
by
anonymous
In 8085, whenever a signal is received at TRAP terminal, its program execution is transferred to a subroutine
In 8085, whenever a signal is received at TRAP terminal, its program execution is transferred to a subroutine on address A) 0000 H B) 002C H C) 0024 H D) 0004 H
Last answer:
In 8085, whenever a signal is received at TRAP terminal, its program execution is transferred to a subroutine on address 0024 H
8085
signal
received
trap
terminal
program
execution
transferred
subroutine
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asked
Jan 6
by
anonymous
What causes resistance?
What causes resistance?
Last answer:
On a microscopic level, electrons moving through the conductor collide (or interact) with the particles of which the conductor (metal) is made. When they collide, they transfer kinetic energy. The electrons ... phone - the charger gets warm because its circuits have some resistors in them!
science
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May 1, 2018
by
anonymous
The time base signal in Cathode Ray Oscilloscope (CRO) is
The time base signal in Cathode Ray Oscilloscope (CRO) is (1) A square wave signal (2) A sawtooth signal (3) A triangular wave signal (4) A sinusoidal signal
Last answer:
2 Saw tooth
time
base
signal
cathode
ray
oscilloscope
cro
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asked
Apr 26, 2018
by
anonymous
The standard for long distance analog signal transmission in process control industry is
The standard for long distance analog signal transmission in process control industry is (A) 4-20 mV (B) 0-20 mA (C) 4-20 mA (D) 0-5 V
Last answer:
The standard for long distance analog signal transmission in process control industry is 4-20 mA
standard
long
distance
analog
signal
transmission
process
control
industry
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asked
Jun 18, 2018
by
anonymous
If it takes a transmitted signal 1m sec to go up to the target and come back after reflection, how far is
If it takes a transmitted signal 1m sec to go up to the target and come back after reflection, how far is the transmitter from the target? A) 150 Km B) 150 m C) 15 Km D) 1500 m
Last answer:
If it takes a transmitted signal 1m sec to go up to the target and come back after reflection, how far is the transmitter from the target? A) 150 Km B) 150 m C) 15 Km D) 1500 m
transmitted
signal
target
reflection
transmitter
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asked
Jun 18, 2018
by
anonymous
If a signal band limited to fm is sampled at a rate less than 2fm, then the constructed signal will be
If a signal band limited to fm is sampled at a rate less than 2fm, then the constructed signal will be A) Large in amplitude B) Small in amplitude C) Distorted D) Distortion less
Last answer:
If a signal band limited to fm is sampled at a rate less than 2fm, then the constructed signal will be Distorted
signal
band
limited
sampled
rate
constructed
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Jul 21, 2019
by
anonymous
For a signal conditioner explain the terms linearization and signal conversion.
For a signal conditioner explain the terms linearization and signal conversion.
Last answer:
Definition : 1. linearization : Many primary elements produce nonlinear outputs and the signal must be linearized to produce a nearly ideal calibration. Specialized analog circuits such as offsetting circuits, ... signal. Even computer algorithms are also used. 2.Signal conversion :
signal
conditioner
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asked
Jun 18, 2018
by
anonymous
An energy signal has G(f) = 20. Its energy density spectrum is
An energy signal has G(f) = 20. Its energy density spectrum is A) 20 B) 100 C) 400 D) 800
Last answer:
An energy signal has G(f) = 20. Its energy density spectrum is 400
energy
signal
density
spectrum
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asked
Mar 10, 2018
by
anonymous
Why digital signal processing is important?
Why digital signal processing is important?
digital
signal
processing
important
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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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asked
Sep 2, 2019
by
anonymous
basic characteristics of sound signal.
basic characteristics of sound signal.
Last answer:
Level and loudness: The amplitude of a sound wave determines its loudness or volume. A larger amplitude means a louder sound, and a smaller amplitude means a softer sound. The loudness of a ... the reproducing system should be capable of handling the maximum and minimum power in the same ratio.
characteristics
sound
signal
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asked
Aug 3, 2019
by
anonymous
List different methods of demodulation of FM signal.
List different methods of demodulation of FM signal.
Last answer:
Balanced Slope detection Ratio detector Foster Seeley discriminator Phase locked loop demodulator
demodulation
fm
signal
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asked
Jul 6, 2019
by
anonymous
Analog signal
Analog signal
Last answer:
.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
analog
signal
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asked
Jun 18, 2018
by
anonymous
The sampling rate to avoid aliasing for the signal m(t) = 100 cos 200ωt will be
The sampling rate to avoid aliasing for the signal m(t) = 100 cos 200ωt will be A) ≥1/25 sec B) ≥1/50 sec C) ≤1/25 sec D) ≤ 1/50 sec
sampling
rate
aliasing
signal
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asked
Apr 28, 2018
by
anonymous
Integration of step signal gives
Integration of step signal gives (A) Impulse signal. (B) Ramp function. (C) Parabola. (D) Square pulse.
Last answer:
Integration of step signal gives Ramp function.
integration
step
signal
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asked
Mar 11, 2018
by
anonymous
Explain transformer isolated drive circuits providing both signal and power.
Explain transformer isolated drive circuits providing both signal and power.
transformer
isolated
drive
circuits
signal
power
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asked
Mar 10, 2018
by
anonymous
Can you convert analog signal to digital?
Can you convert analog signal to digital?
convert
analog
signal
digital
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90
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asked
Mar 10, 2018
by
anonymous
How does signal processing work?
How does signal processing work?
signal
processing
work
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asked
Jun 18, 2018
by
anonymous
The clock frequency of an 8085 microprocessor based system is 3 MHz. What should be the minimum pulse
The clock frequency of an 8085 microprocessor based system is 3 MHz. What should be the minimum pulse width of the INTR signal so that it is recognized successfully? A) 5.6 µs B) 5.7 µs C) 5.8 µs D) 5.9 µs
Last answer:
The clock frequency of an 8085 microprocessor based system is 3 MHz. What should be the minimum pulse width of the INTR signal so that it is recognized successfully? A) 5.6 µs B) 5.7 µs C) 5.8 µs D) 5.9 µs
clock
frequency
8085
microprocessor
system
minimum
pulse
width
intr
signal
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asked
Jul 13, 2019
by
S. T.
Derivation of Fourier transform for impulse train (T).. @anyone
signal
and
system
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asked
Jan 9
by
anonymous
In a batch, 40% of the students offered Maths, 30% offered science and 15% offered both. If a student is selected at random, what is the probability that they has offered science or maths? A) 0.55 B) 0.65 C) 0.45 D) 0.75
In a batch, 40% of the students offered Maths, 30% offered science and 15% offered both. If a student is selected at random, what is the probability that they has offered science or maths? A) 0.55 B) 0.65 C) 0.45 D) 0.75
Last answer:
Answer: A) P(M) = 0.40 P(S) =0.30 and P(M∩S) = 0.15 P(M∪S) = P(M) + P(S) - P(M∩S) = 0.55
probability
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asked
Mar 11, 2018
by
anonymous
What is convolution in signals and systems?
What is convolution in signals and systems?
convolution
signals
systems
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asked
Mar 11, 2018
by
anonymous
What is a time variant system?
What is a time variant system?
time
variant
system
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Mar 11, 2018
by
anonymous
What is the convolution filter?
What is the convolution filter?
convolution
filter
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73
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0
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asked
Mar 11, 2018
by
anonymous
What is stable and unstable system?
What is stable and unstable system?
stable
unstable
system
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0
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asked
Mar 11, 2018
by
anonymous
What is the impulse response of the system?
What is the impulse response of the system?
impulse
response
system
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Mar 11, 2018
by
anonymous
What is the meaning of LTI system?
What is the meaning of LTI system?
Last answer:
The system which satisfies both linearity and time invarient is called linear time invarient (LTI) systrm
lti
system
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asked
Aug 13, 2018
by
nat
What kind of circuit can produce looping signals of sweep frequency from 10KHz to 20KHz ?
I want to build circuit that produce sweep frequency from 10KHz - 11KHz - 12....... - 20KHz (as maximum) then start again at 10KHz - 11KHz - 12....... - 20KHz looping like this (2-3 seconds per loop) until the power turned off.
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66
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asked
Mar 11, 2018
by
anonymous
What do you mean by linear convolution?
What do you mean by linear convolution?
linear
convolution
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56
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0
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2 days
ago
by
anonymous
Which of the following is a correct description of ‘tissue culture’? (1) Conservation of forests and plantation (2) Growth and propagation of horticultural crops (3) Science of cultivating animal tissue in artificial medium (4) Protection of wild animals
Which of the following is a correct description of ‘tissue culture’? (1) Conservation of forests and plantation (2) Growth and propagation of horticultural crops (3) Science of cultivating animal tissue in artificial medium (4) Protection of wild animals
Last answer:
Science of cultivating animal tissue in artificial medium
biology
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asked
Jan 11
by
anonymous
Seats for Mathematics, Science and arts in a school are in the ratio 5:7:8. There is a proposal to increase these seats by X%, Y% and Z% respectively. And the ratio of increased seats is 2:3:4, which of the following is true? A) X = 50; Z = 40 B) Y = 40; Z = 50 C) X = 40; Z = 75 D) X = 50; Z = 40 E) Y = 50; X = 75
Seats for Mathematics, Science and arts in a school are in the ratio 5:7:8. There is a proposal to increase these seats by X%, Y% and Z% respectively. And the ratio of increased seats is 2:3:4, which of the following is true? A) X = 50; Z = 40 B) Y = 40; Z = 50 C) X = 40; Z = 75 D) X = 50; Z = 40 E) Y = 50; X = 75
Last answer:
Answer: C Number of increased seats are (140% of 5x), (150% of 7x) and (175% of 8x) i.e., (140/100 * 5x), (150/100 * 7x) and (175/100 * 8x) i.e., 7x, 21x/2 and 14x Required ratio = 7x:21x/2: ... of 8 = 6 total seats 8+6=14 Now compare ratios of all 7:21/2:14=>14:21:28 =>2:3:4
ratio-and-proportion
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asked
Jan 10
by
anonymous
The average marks obtained by a student in Tamil, english, maths, science, and social together is 65% above the average mark obtained in maths and science together. How many more marks exceeded by the average of maths and science together than the sum of the tamil and english together? A) 50 B) 65 C) Data insufficient D) None of these
The average marks obtained by a student in Tamil, english, maths, science, and social together is 65% above the average mark obtained in maths and science together. How many more marks exceeded by the average of maths and science together than the sum of the tamil and english together? A) 50 B) 65 C) Data insufficient D) None of these
Last answer:
C) According to the question There is no other information about the marks in any one of the subject. The data gives is insufficient to answer the question.
average
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Jan 10
by
anonymous
In an exam the average marks obtained by a candidate is 82 per paper. If he had obtained 32 marks more in science paper & 28more marks in social paper, then his average per paper is increased by 15 marks. Then how many papers when there in examination? A) 10 B) 6 C) 4 D) 8
In an exam the average marks obtained by a candidate is 82 per paper. If he had obtained 32 marks more in science paper & 28more marks in social paper, then his average per paper is increased by 15 marks. Then how many papers when there in examination? A) 10 B) 6 C) 4 D) 8
Last answer:
C) let the number of paper be x total mark earned him = 82x then,, 82x+32+28= 97x 15x=60 x= 4 =number of subjects
average
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Jan 10
by
anonymous
In a post graduate examination the marks obtained by a student is 75 per paper. If he had obtained 33 marks more in Evs paper & 27 more marks in science paper, then his average per paper is increased by 3 marks. Then how many papers were there in exam? A) 10 B) 12 C) 14 D) 20
In a post graduate examination the marks obtained by a student is 75 per paper. If he had obtained 33 marks more in Evs paper & 27 more marks in science paper, then his average per paper is increased by 3 marks. Then how many papers were there in exam? A) 10 B) 12 C) 14 D) 20
Last answer:
Answer: D) Let the number of paper be A. Then total marks earned him = 75A from questions, 75A + 33+ 27= 78A 3A = 60=> A=20 = number of subjects
average
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asked
Oct 23, 2020
by
anonymous
What are the best science projects?
What are the best science projects?
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asked
Jan 11
by
anonymous
Nandita scores 60% marks in five subjects together, viz., Hindi, Science, Mathematics, English and Sanskrit, where in the maximum marks of each subject were 105. How many marks did Nandita score in Science, if she scored 69 marks in Hindi, 62 marks in Sanskrit, 68 marks in Mathematics and 51 marks in English? a) 66 b) 68 c) 55 d) 65 e) None of these
Nandita scores 60% marks in five subjects together, viz., Hindi, Science, Mathematics, English and Sanskrit, where in the maximum marks of each subject were 105. How many marks did Nandita score in Science, if she scored 69 marks in Hindi, 62 marks in Sanskrit, 68 marks in Mathematics and 51 marks in English? a) 66 b) 68 c) 55 d) 65 e) None of these
Last answer:
Answer: D Total of maximum marks of all subjects=105×5=525 75% of 525=525 ×60/100= 315 Obtained marks of foru subjects (Hindi, Sanskrit, mathematics and English) =69+62+68+51=250 So, the obtained marks in Science=315-250=65
ratio-and-proportion
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asked
Jan 9
by
anonymous
A school has 9 maths teachers and 6 science teachers. In how many ways can a team of 4 maths teachers be formed from them such that the team must contain exactly 1 science teacher? A) 800 B) 720 C) 680 D) 504
A school has 9 maths teachers and 6 science teachers. In how many ways can a team of 4 maths teachers be formed from them such that the team must contain exactly 1 science teacher? A) 800 B) 720 C) 680 D) 504
Last answer:
Answer: D) The team should have 4 maths teachers. But the team must contain exactly 1 science teacher. Hence, select 3 maths teachers from 9 maths teachers and select 1 science teachers from 6 science teachers. Number of ways this can be ... ={9 8 7}/{3 2 1}X6 = 504 / 6 6 = 84 6 =504
permutation
combination
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asked
Jan 9
by
anonymous
Nesha scored 120 out of 150 in English, 120 out of 180 in mathematics and 160 out of 200 in Science. Find Nesha’s score as percentage: (i) in Mathematics (ii) in all the three subjects (on the whole). a) 66 2/3, 78 22/51 b) 71 23/5, 45 7/31 c) 54 13/33, 82 3/4 d) 60 3/4, 76 32/41
Nesha scored 120 out of 150 in English, 120 out of 180 in mathematics and 160 out of 200 in Science. Find Nesha’s score as percentage: (i) in Mathematics (ii) in all the three subjects (on the whole). a) 66 2/3, 78 22/51 b) 71 23/5, 45 7/31 c) 54 13/33, 82 3/4 d) 60 3/4, 76 32/41
Last answer:
Answer: A (i) Percentage scored in Mathematics = 120/180 100 = 12000/180 =1200/18 = 66 2 /3 % (ii) Total maximum of all the three subjects = 150 + 160 + 200 = 510 and Total score in the ... percentage on the whole = (400/510 100) = (40000/510) = 4000/51 = 78 22/51 %
percentage
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asked
Mar 11, 2018
by
anonymous
Is a convolution linear?
Is a convolution linear?
convolution
linear
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49
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asked
6 days
ago
by
anonymous
‘Cryogenics’ is a science dealing with (1) high temperatures (2) low temperatures (3) friction and wear (4) growth of crystals
‘Cryogenics’ is a science dealing with (1) high temperatures (2) low temperatures (3) friction and wear (4) growth of crystals
Last answer:
low temperatures
physics
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asked
Apr 11, 2018
by
anonymous
The change in value of an analog signal during the conversion process produces what is called the : -
The change in value of an analog signal during the conversion process produces what is called the : - a) quantization error b) resolution error c) Nyquist error d) sampling error
Last answer:
The change in value of an analog signal during the conversion process produces what is called the : - quantization error.
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Apr 5, 2018
by
anonymous
In order to recover the original signal from the Sampled one, what is the condition to be satisfied for sampling ...
In order to recover the original signal from the Sampled one, what is the condition to be satisfied for sampling frequency ωs and highest frequency component ωm? (A) ωm < ωs ≤ 2 ωm (B) ωs ≥ 2 ωm (C) ωs < ωm (D) ωs = ωm
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