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What is a signal in science?

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Description : What do you mean by signal processing?

Description : What do you mean by signal and system?

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 is the use of digital signal processing?

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

Description : Can you convert analog signal to digital?

Description : How does signal processing work?

Description : Why digital signal processing is important?

Description : What is the benefit of patterns in science?

Answer : They let us make predictions

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 : What are the three main ingredients of science?

Answer : Process, Nature, and Repetition 

Description : What is difference between computer engineering and computer science?

Description : Explain why we use models in science.

Answer : To look at things that are too big or too small to work with normally. To make something complex simple 

Description : Describe the correct way to classify objects in science.

Answer : There is no correct way. It’s whatever works and makes sense.

Description : Pioneers in Science

Answer : Anderson-Discovered positive electrons. Archimedes-Discovery of the Principles of lever and of specific gravity; invention of the famous Archimedean screw. Avogadro-An Italian scientist known for Avogadro s ... -Aeroplane (1903). Waterman-Fountain pen. Zeiss-Lenses; Camera.

Description : Discover the Branches of Science

Answer : Discover the Branches of Science Science is one of the most amazing subjects ever introduced to mankind. This particular subject has numerous branches or categories. This particular subject can help you ... Hence, we suggest you do your research thoroughly and get counseled well before taking one.

Description : Compare the scientific method with science skills

Answer : Scientific method has particular steps that must be completed in order. It is limited by what you are studying and does not allow for tangents. Science skills provide more flexibility in how to study and solve a problem.

Description : Give five specific examples of things that are not science and explain why they are not science.

Answer : Varies

Description : Give five specific examples of doing science and explain why it is science.

Answer : Varies

Description : The four traditional branches of Earth and Space Science are:

Answer : Astronomy, Meteorology, Hydrology, and Geology 

Description : Radar is used to (1) locate submerged submarines. (2) receive signal from radio receivers. (3) detect and locate distant objects. (4) locate geostationary satellites.

Answer :  detect and locate distant objects

Description : What kind of graph should you use to compare the test grades of every student in the class?

Answer : Scatter Plot 

Description : Describe the forces responsible for keeping the planets in orbit around the sun. Make sure to appropriately use the words: inertia, angular momentum, and gravity. What scientist is responsible for developing the ideas and models to explain this?

Answer : Planetary orbits are created by a balance between angular centripetal forces and the gravitational pull of the moon. Inertia is the force of an object in motion that keeps it in motion unless acted upon by another force. 

Description : What must happen in order for an eclipse to take place? 

Answer : The earth or the moon must block out the sun.  

Description : What does a Hertzsprung-Russell (H-R) diagram show. a. the location of stars in the sky b. b. the absolute magnitude and temperature of the stars c. the apparent magnitude and temperature of the stars c. the absolute magnitude and mass of stars

Answer : b. b. the absolute magnitude and temperature of the stars  

Description : What is the last stage in the formation of a star? 

Answer : A black dwarf.  

Description : What is the first stage in the formation of a star? 

Answer : A nebula or cloud of dust and gases.  

Description : What is the name of Research Station established by Indian Government for conducting research in Antarctic ? (1) Dakshin Gangotri (2) Yamunotri (3) Uttari Gangotri (4) None of the above

Answer : Dakshin Gangotri

Description : What is the name given to India’s Meteorological Research Satellite (Met Sat) launched in 2003 ? (1) Arya Bhatta-1 (2) Kalpana-1 (3) Bhaskara-1 (4) Vikram-1

Answer : Kalpana-1

Description : What does the acronym STEM stand for?

Answer : Science, Technology, Engineering, Math

Description : What are five things to make sure you include on your graph?

Answer : Correct type of graph, Label, Units, Title, Scale, Visually Appealing, Key

Description : What did a pilot have to do to be memorialized on Pancho's wall? 

Answer : He had to die.  

Description : What were the spacecraft modifications the astronauts demanded? 

Answer : A hatch with explosive bolts and a window.  

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