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Instrumentation Transducers Multiple Choice Questions | MCQs | Quiz

Instrumentation Transducers Interview Questions and Answers
Practice Instrumentation Transducers questions and answers for interviews, campus placements, online tests, aptitude tests, quizzes and competitive exams.

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•   Callibration
•   Transducers Types
•   Characteristics
•   Errors Measurement
•   Standard Test Signals
•   Current Measurement
•   Voltage Measurement
•   Resistance Measurement
•   Impedence Measurement
•   Electronic Amplifiers
•   Phase Angle Measurement
•   Frequency Measurement
•   Time Interval Measurement
•   Systems Performance
•   Electrical Networks
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•   Filtering Compensation
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•   Pressure Transducers
•   Seismic Transducers
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•   Inductive Transducers
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•   Electric Transducers
•   Piezo Electric Transducers
•   Magnetostrictive
•   Hall Effect Transducers
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•   Photo Electric Transducers
•   Ionization Transducers
•   Digital Transducers
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•   Feedback System
•   Inverse Transducers
•   Temperature Systems
•   Balancing Potentiometer
•   Self Balancing Bridges
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•   Beam Balance Systems
•   Servo Operated Manometer
•   Pneumatic Loadcell
•   Electro Magnetic Flow
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•   Feedback Applications
•   DC Power Supplies
•   Signal Generators
•   High Frequency Amplifiers
•   Comparators
•   Active Electrical Filters
•   Analog Modulators
•   Analog Demodulators
•   Sampling Circuits
•   Digital Building Blocks
•   Flip Flop Circuits
•   Shift Registors & Counters
•   Encoders & Decoders
•   Digital-Analog Converters
•   Analog-Digital Converters
•   Demultiplexers
•   Microprocessors
•   Recording Systems
•   Dataloggers
•   Analog Indicators
•   Digital Readout Systems
•   Analog Recorders
•   Magnetic Tape Recorders
•   Digital Input Outpt Devices
•   Data Transmission
•   Telemetry Systems
•   Landline Telemetry
•   Radio Telemetry
•   Multiplexers Frequency
•   Multiplexing Time Division
•   Sensor Systems
•   Semiconductor Sensors
•   Smart Sensors
•   Micro Sensors
•   IR Radio Sensors
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•   Bio Sensors
•   Thermography
•   Nano Instrumentation
•   Biomedical Instrumentation
•   Tomography
•   Instrumentation Analysis
•   Pollution Monitoring
•   Robotic Instrumentation
•   Process Control

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Instrumentation Transducers Questions and Answers – Standard Test Signals

Posted on May 26, 2017 by Manish

This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Standard Test Signals”.

1. Which of the following represents Laplace transform of ramp signal?
a) 1⁄S3
b) 1⁄S2
c) 1⁄S
d) 1
View Answer

Answer: b
Explanation: Ramp function is given as r (t) = t for all t >0. Its Laplace transform gives 1⁄S2.
Laplace transform can be found by:
∫0∞r(t)e-stdt.
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2. instrumentation-transducers-question-answers-standard-test-signals-q2
What does this function represents?
a) u (t)
b) u (t-2)
c) u (t+2)
d) u (-t)
View Answer

Answer: b
Explanation: Given diagram represents a step function, which is shifted to right by two units and can write as u(t-2).

3. Laplace transform function f (t) is F(S), then how will you represent Laplace transform for differential of f (t)?
a) S⁄F(S)
b) F(S)
c) S.F(S)
d) F’(S)
View Answer

Answer: c
Explanation: This is obtained by time differential property of Laplace transform.

4. How will you obtain given function from unit step signals?
f (t) = 1 for -1≤t≤1
0 otherwise
a) u (t) – u (t+2)
b) u (t+1) – u (t-1)
c) u (t+1) + u(t-1)
d) 2.u (t)
View Answer

Answer: b
Explanation: Given expression cancels common region in two functions, and the remaining will be function of our interest. u(t+1) is step signal with one unit left shifted, and u(t-1) is step signal with one unit right shifted.
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5. How will you represent given function?
instrumentation-transducers-question-answers-standard-test-signals-q5
a) u (t)
b) eat.u(t)
c) e-at.u(t)
d) eat.r(t)
View Answer

Answer: c
Explanation: Given function is a decreasing exponential with initial amplitude one, where u(t) represents step function. u(t) gives initial amplitude and negative power of exponential gives a negative slop to function.

6. Which of the following function is represented using given condition?
f (t) = 1 for t=0
0 otherwise
a) Step function
b) Sine function
c) Ramp function
d) Impulse function
View Answer

Answer: d
Explanation: Impulse signal has a value only at t=0 and has zero value otherwise. Unit impulse function will have amplitude one at time t=0.

7. What is the result of the expression f(t)= u (t+2) – u (t-3)?
a) f (t) =1 for -2 ≤ t ≤ 3
b) f (t) =1 for 2 ≤ t ≤ 3
c) f (t) =1 for -2 ≤ t ≤ -1
d) f (t) =1 for -2 ≤ t ≤ 0
View Answer

Answer: a
Explanation: u (t) is step function, and subtracting two shifted step functions will cancel their common region and produces new function. u(t+2) is a step signal with two units shifted left side and u(t-3) is a step signal with three units shifted right side.
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8. Transfer function of a system is given by 1/S. If system has a step input, what will be the output in time domain?(Function exist only for positive time value)
a) Step signal
b) Impulse signal
c) Sinusoidal signal
d) Ramp signal
View Answer

Answer: d
Explanation: Transfer function is ratio of Output to Input and hence Output can be obtained as a product of transfer function and input, which gives 1/S2. For a positive sided signal using inverse Laplace transform, output is obtained as ramp signal.

9. Function f (t) has Laplace transform F(S). How will you represent Laplace transform of integral of f(t)?
a) S.F(S)
b) F(S)
c) F(S2)
d) F(S)⁄S
View Answer

Answer: d
Explanation: This is obtained by integration property of Laplace transform.

10. Which of the following represents Laplace transform of sinh(at)?
a) a⁄(S2+a2)
b) a⁄(S2-a2)
c) S⁄(S2+a2)
d) S⁄(S2-a2)
View Answer

Answer: b
Explanation: Given function represents hyperbolic sine function. Hyperbolic sine function can be represented as sinhx= (ex-e-x)⁄2. Applying Laplace transform equation to this expression, we obtain Laplace transform of hyperbolic sine function.

Sanfoundry Global Education & Learning Series – Instrumentation Transducers.
To practice all areas of Instrumentation Transducers, here is complete set of 1000+ Multiple Choice Questions and Answers.

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