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Question 01 (MC)Write a mathematical equation for circuit shown assuming all resistors of equal value MC

#Answers Hints/Feedback Grade

.A C = a + b0

.B C = -(a+ b)100

.C C = a * b0

.D C = a / b0

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Question 02 (MC)The op-amp integrator and differentiator are useful for

MC


.A Wave shaping circuits100

.B clipping circuits 0

.C Rectifier circuits 0

.D None of the above 0




Question 03 (MC)

What is the output if V1 = 0 and V2 = 1v? MC


.A - 2 V 0

.B 2 V100

.C 3 V0

.D -1 V0




Question 04 (MC)Frequency response of an integrator is same as that of ______________.

MC#

Answers Hints/Feedback Grade.A High pass filter

100

.B Low pass filter0

.C Band pass filter0

.D All pass filter0




Question 05 (MC)What is the scale multiplier (factor) of a basic integrator?

MC#

Answers Hints/Feedback Grade.A R/C

0

.B 1/(RC)0

.C RC0

.D -(1/RC)100




Question 06 (MC)

An instrumentation amplifier has a high MC


.A Power0

.B CMRR100

.C Supply voltage0

.D All of above 0




Question 07 (MC)Which circuit is also called as unity gain buffer.

MC#

Answers Hints/Feedback Grade.A Inverting amplifier

0

.B Non Inverting amplifier0

.C Voltage Follower 100

.D Integrator 0




Question 08 (MC)

The gain of ideal integrator will be _____ in absence of any ac input signalMC


.A 00

.B Infinity0

.C Cannot say 0

.D RF/R1

100




Question 09 (MC)Ideally input resistance of instrumentation amplifier is ________.

MC


.A 00

.B 10

.C -1 0

.D Infinite 100




Question 10 (MC)

Determine the output voltage For given circuit.MC


.A 130

.B -13100

.C 300

.D -260




Question 11 (MC)

The following circuit is _____.MC


.A Difference Amplifier100

.B Averaging circuit 0

.C Buffer 0

.D Integrator 0




Question 12 (MC)

The following fig. Shows the frequency response of _______.MC


.A Practical Integrator 0

.B Ideal Integrator 100

.C Differentiator 0

.D Comparator 0




Question 13 (MC)

The function of window detector isMC


.A to monitor input and output voltage0

.B to monitor an input voltage and indicate when this voltage goes either above or be-low prescribed limits.

100

.C to find input and output voltage0

.D None of the above 0




Question 14 (MC)

The circuit in below representsMC


.A Difference amplifier 0

.B Comparator 0

.C zero crossing detector 100

.D Rectifier 0




Question 15 (MC)Which circuit is used to get Vsat = 5v?

MC#

Answers Hints/Feedback Grade.A Integrator

0

.B Voltage Limiter 100

.C Averaging amplifier 0

.D All of these 0




Question 16 (MC)What is the output waveform of the circuit? If the input is square wave

MC


.A spikes0

.B square wave0

.C sawtooth wave0

.D triangle wave100




Question 17 (MC)

The Schmitt trigger is a two-state device that is used for:MC


.A pulse shaping100

.B peak detection0

.C input noise rejection0

.D filtering0




Question 18 (MC)A portion of the output that provides circuit stabilization is considered to be:

MC#

Answers Hints/Feedback Grade.A negative feedback

0

.B Distortion0

.C open-loop0

.D positive feedback100




Question 19 (MC)Example of non linear circuit is _______.

MC#

Answers Hints/Feedback Grade.A a) Precision rectifier

.B peak detector0

.C sample and hold circuit0

.D all of these100




Question 20 (MC)The zero crossing detector is also known as ______.

MC#

Answers Hints/Feedback Grade.A a) V to I converter

0

.B I to V converter0

.C sinewave to square wave converter100

.D None of these0




Question 21 (MC)The most important characteristic of a comparator is:

MC#

Answers Hints/Feedback Grade.A speed of operation

0

.B accuracy0

.C compatibility of output0

.D all of these100




Question 22 (MC)Output voltage of inverting comparator is ______.

MC


.A high for input voltage higher than reference voltage 0

.B high for input voltage less than reference voltage 100

.C low for input voltage less than reference voltage 0

.D None of these0




Question 23 (MC)

Hysteresis voltage is defined as MC#

Answers Hints/Feedback Grade.A The sum of voltages of the upper and the

lower trigger points 0

.BThe difference in voltage between the upper and the lower trigger points.

100

.C The voltage of the lower trigger point. 0

.D The voltage of the upper trigger point. 0




Question 24 (MC)A zero crossing detector is a

MC#

Answers Hints/Feedback Grade.A

limiter 00

.Bpeak detector 0

.Ccomparator with no output 0

.D comparator with a trip point referenced to zero

100




Question 25 (MC)Output bounding is the process of ________ the output voltage range of a compar-ator. MC


.A comparing 0

.B extending 0

.C filtering 0

.Dlimiting 100




Question 26 (MC)A triangular-wave oscillator can consist of an op-amp comparator, followed by

MC#

Answers Hints/Feedback Grade.A

a) differentiator 0

.Bb) amplifier 0

.Cc) integrator 100

.Dd) multivibrator 0




Question 27 (MC)

A mathematical operation that determines the rate of change of a curve is called __________. MC


.Adifferentiation 100

.Bintegration 0

.Ccurve averaging 0

.D linear regression 0




Question 28 (MC)To reduce the effects of noise resulting in erratic switching of output states of a comparator, you can use MC


.Athe upper trigger point. 0

.B the lower trigger point. 0

.C nonzero-level detection. 0

.Dd) hysteresis. 100




Question 29 (MC)

A window comparator MC


.A Has only one usable threshold 0

.B Uses hysteresis to speed up response0

.C Clamps the input positively0

.D Detects an input voltage between two limit100




Question 30 (MC)In an active peak detector, the discharging time constant is

MC


.A Much longer than the period 100

.B Much shorter than the period0

.C Much shorter than the period0

.D The same as the charging time constant0




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