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What do you mean by signal processing?

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Description : What is the use of digital signal processing?

Description : How does signal processing work?

Description : Why digital signal processing is important?

Description : What do you mean by signal and system?

Description : What is a signal in science?

Description : Which of the following is the product of data processing:  (A) Information (B) Data (C) Software programme (D) System

Answer : Which of the following is the product of data processing: Information 

Description : Which of the following are components of Central Processing Unit (CPU)?  (A) Arithmetic logic unit, Mouse  (B) Arithmetic logic unit, Control unit  (C) Arithmetic logic unit, Integrated Circuits  (D) Control Unit, Monitor

Answer : Which of the following are components of Central Processing Unit (CPU)?  (A) Arithmetic logic unit, Mouse  (B) Arithmetic logic unit, Control unit  (C) Arithmetic logic unit, Integrated Circuits  (D) Control Unit, Monitor

Description : Can you convert analog signal to digital?

Description : What do you mean by linear convolution?

Description : What is the significance of signal conditioner? Explain the need of following in mechatronics system. i) Isolator ii) Filter iii) Amplifier iv) Data converter

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.  

Description : What is the Laplace transform of step signal of 5 units magnitude?  A) 5s B) 5/s C) s/5 D) 1/s 

Answer : What is the Laplace transform of step signal of 5 units magnitude?  A) 5s B) 5/s C) s/5 D) 1/s 

Description : What are the advantages of a digital signal?

Answer : It  has   only   two  variable   input  and  output (low   or    high)   (0  or    5).

Description : What is the use of signal flow graph?

Description : State different types of electrical signal and draw all types of waveforms.

Answer : Types of electrical signals 1) Sine wave 2) Triangular wave 3) Square wave Waveforms

Description :  basic characteristics of sound signal.

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. 

Description : List different methods of demodulation of FM signal.

Answer : Balanced Slope detection Ratio detector Foster Seeley discriminator Phase locked loop demodulator 

Description : For a signal conditioner explain the terms linearization and signal conversion.

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 :

Description : Analog signal

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%; }

Description :  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 

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 

Description : 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

Answer : In 8085, whenever a signal is received at TRAP terminal, its program execution is transferred to a subroutine on address 0024 H

Description :  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

Answer :  If a signal band limited to fm is sampled at a rate less than 2fm, then the constructed signal will be Distorted 

Description : 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

Description :  An energy signal has G(f) = 20. Its energy density spectrum is A) 20 B) 100 C) 400 D) 800  

Answer :  An energy signal has G(f) = 20. Its energy density spectrum is 400 

Description : 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

Answer : 2 Saw tooth 

Description : Integration of step signal gives (A) Impulse signal. (B) Ramp function. (C) Parabola. (D) Square pulse.

Answer : Integration of step signal gives Ramp function.

Description : 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

Answer : The standard for long distance analog signal transmission in process control industry is 4-20 mA

Description : Explain transformer isolated drive circuits providing both signal and power.

Description : 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

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

Description : 7.24 Consider the finite-duration signal x(n) = {1,2,3,1} (a) Compute its four point DFT by solving explicitly the 4-by-4 system of linear equations defined by the inverse DFT formula. (b) Check the answer in part (a) by computing the four-point DFT, using its defination.

Answer : Handwritten Solution for Problem Number 7.24 from Digital Signal Processing 4th edition By John G. Proakis

Description : What do you mean by “Tyndallisation” and “Pasteurisation”. State the methods of pasteurisation.

Answer : Tyndallisation : This is a fractional sterilization method. This method is used for sterilization of medicaments unstable at 1150C but able to withstand low temperature heating. This method consist of ... High Temperature Short Time (HTST) Vat pasteurization Ultra High Temperature(UHT)

Description : What do you mean by reserved percolation? Enlist different steps involved in it.

Answer : Reserve percolation:   In this process a part of percolate, generally 3/4th volume of the finished preparation is reserved.(contains high solute concentration) Then the percolation process is continued ... :  a. Imbibition, b. Maceration, c. Percolation, d. Distillation or evaporation.

Description : What do you mean by enteric coated tablet? Give reasons for enteric coating.

Answer : Enteric Coated tablet:   1. These tablets are coated with the material which does not disintegrate in stomach but passes through as it is i.e. enteric polymer e.g.: Hydroxypropyl methyl cellulose phthalate ... stomach pH. 4. Drug absorption is better in intestine. 5. Delayed action is needed. 

Description : What do you mean by eco-friendly building materials? State any two properties of it.

Answer : Eco-friendly means earth-friendly or not harmful to the environment. This term most commonly refers to products that contribute to green living or practices that help conserve resources like water and ... It reduces air pollution, land pollution & water pollution. 7. It is locally available. 

Description : What do you mean by Gross National Product? a) The total value of goods and services produced in the country b) The total value of all transactions in the country c) Depreciation in the total ... d) The total value of goods and services produced in the country and net factor income from abroad

Answer : Answer- d

Description : What do you mean by demand of a commodity? a) A desire for the commodity b) Need for the commodity c) Quantity demanded of that commodity d) Quantity of the commodity demanded at a certain price during any particular period of time

Answer : Answer- d

Description : What do you mean by a mixed economy? a) Modern and traditional industries b) Public and private sectors c) Foreign and domestic investments d) Commercial and subsistence farming

Answer : Answer- b

Description : What do you mean by under conditions of perfect competition in the product market? a) MRP=VMP b) MRP>VMP c) VMP>MRP d) None of the above

Answer : Answer- a

Description : What do you mean by the supply of goods? a) Stock available for sale b) Total stock in the warehouse c) The actual production of the good d) Quantity of the good offered for sale at a particular price per unit of time

Answer : Answer- d

Description : What do you mean by normal and reverse fault?

Answer : i) Normal fault: A normal fault is the one in which the hanging wall has apparently moved down with respect to the foot-wall  ii) A Reverse fault is one in which the hanging wall has apparently moved up with respect to the footwall A reverse fault is that thrust which dips more than 450

Description : What do you mean by symmetrical folds and asymmetrical folds. 

Answer : Symmetrical Fold: The fold in which is axial plane divides the fold equally in two parts is called as symmetrical fold. The fold may be anticline or syncline. Asymmetrical Fold: The fold in which is axial plane divides the fold unequally in two parts is called as asymmetrical fold. 

Description : What do you mean by zero circle in area measurement?

Answer : Zero Circle - It is the circle formed due to sliding of wheel of mechanical planimeter without changing the reading of circular measuring disc. It is unmeasured circular area on drawing sheet due to non-rotation of counter disc.

Description : What do you mean by overloaded constructor?

Answer : When more than one constructor function is defined in a class, it is referred as overloaded constructor. Each overloaded constructor function is invoked with respect to arguments pass in the function call.

Description : What do you mean by default argument? Give its suitable example.

Answer : Default argument  Initializing an argument with a value while defining a constructor is referred as constructor with default value. When a constructor with default value is declared in a class, it does not require object to pass value ... void main() { ABC obj1(5); ABC obj2(20,30); }

Description : What is stub? What do you mean by single stub matching.

Answer : Stub is a piece of short circuited transmission line which is used to tune out the reactance of the load when connected across the transmission line as close as possible. Single Stub Matching : ... The single stub match is perhaps the most widely used matching circuit and can match any load.  

Description : What do you mean by ‘Density of Population’? (1) Ratio of people living below poverty line to total population (2) Number of persons live per square kilometre (3) Number of persons in a city (4) Number of persons living per kilometre 

Answer : Number of persons live per square kilometre 

Description : What do you mean by active filter? State its advantages over passive filter . Define pass band & stop band with respect to filter.

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.

Description : What do you mean by exciting resistance and exciting reactance?

Description : What do you mean by simulation? Why it is necessary?

Answer : Simulation is functional emulation of a circuit design through software programs that use models to replicate how a device will perform in terms of timing and results. It should be ... Simulation is used for design verification: Validate assumptions, Verify logic, Verify performance (timing)

Description : What do you mean by bilateral network and unilateral network?

Answer : Bilateral Network: An element whose response is independent of direction of current flowing through it is called Bilateral element and the network, which contains only bilateral elements, is called ... response depends on the direction of current flowing through it, is called unilateral network.

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